镍基合金管

镍基合金材料标准镍基合金是一类重要的高温合金材料，具有良好的耐高温、耐腐蚀、高强度和良好的加工性能等优点，被广泛应用于航空航天、石油化工、核能、船舶制造等领域。

为了规范镍基合金材料的生产、加工和使用，制定了一系列的相关标准。

下面将对镍基合金材料的标准进行详细介绍。

一、镍基合金材料的分类标准根据合金成分和性能特点的不同，镍基合金材料可以分为多种不同的类型。

目前国内外普遍采用的是美国标准和欧洲标准，其中美国标准主要由ASTM（美国材料与试验协会）负责制定，欧洲标准主要由ISO（国际标准化组织）负责制定。

1. 美国标准在美国，镍基合金材料通常按照ASTM标准进行分类。

ASTM标准共包括了近百种针对不同合金成分和性能特点的镍基合金材料标准，例如ASTM B166/B166M-09 标准规定了无缝镍及镍合金管，ASTM B574-10a 标准规定了镍铬钼钨合金棒料等。

这些标准主要规定了合金材料的化学成分、力学性能、加工工艺等方面的要求，为生产厂家提供了明确的生产和质量控制依据。

2. 欧洲标准在欧洲地区，镍基合金材料的标准主要由ISO负责制定。

ISO标准包括了许多与合金成分、性能、加工等相关的技术规范，具有较高的权威性和通用性。

比如ISO5832-12:2013为医疗器械用高温合金规定了特殊要求等。

这些标准被广泛应用于工程设计、生产制造、检测认证等方面，对保障镍基合金材料的质量和安全起到了至关重要的作用。

二、镍基合金材料的生产和检测标准1. 生产标准除了对镍基合金材料的化学成分和性能进行规范外，生产标准也是镍基合金行业中非常重要的一部分。

生产标准主要涉及原料选用、熔炼制备、热处理工艺、加工方法等方面的要求。

还包括了对生产设备、环境、技术人员的要求，以及对产品质量控制和追溯体系的要求。

这些标准能够有效指导生产厂家合理开展生产活动，确保产品质量和生产安全。

2. 检测标准镍基合金材料的质量检测是确保产品质量和安全的重要环节。

Nimonic 60尼孟镍克合金管镍基合金板
Nimonic60高温合金
Nimonic60概述：
与含钴和高镍合金相比，Nimonic60不锈钢能以极低的成本实现抗腐蚀和耐磨损。

其整体抗腐蚀性优于大多数介质中的304型。

在Nimonic60中，抗氯化物点蚀的能力优于316型。

室温下的屈服强度几乎是304和316的两倍。

Nimonic60具有出色的抗高温氧化性和抗低温冲击性。

化学成分:
镍8 9
铬16 18
铁59 66
碳0.1
锰 7 4.5
硅 3.5 0.18
氮0.08 0.04
磷0.03
硫
物理性能:
密度:8.0g/cm3
熔点:1375℃
在常温下合金的机械性能的小值:
状态:固熔态
抗拉强度：690RmN/mm2
屈服强度：380RP0.2N/mm2
延伸率：35A5%
布氏硬度：≤241HB
Nimonic60应用领域：
广泛应用于电力、化工、石化、食品和油气工业，包括伸缩接头耐磨板、耐磨泵环、衬套、工艺阀杆、密封件和测井装备。

规格范围: 技术顾问TEL：158-01--91-6798（微信同号）板材:厚壁规格(min-max):中0.1mm- 中200.0mm .
丝材:中0.1mm-中3.0mm
直条或卷条:中2.0mm -中300.0mm
我公司材料之多不能一--列出，以上部分供参考。

Designation:B444–06Standard Specification forNickel-Chromium-Molybdenum-Columbium Alloys(UNS N06625and UNS N06852)and Nickel-Chromium-Molybdenum-Silicon Alloy(UNS N06219)Pipe and Tube1This standard is issued under thefixed designation B444;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1This specification2covers nickel-chromium-molybdenum-columbium alloys(UNS N06625and UNS N06852)and nickel-chromium-molybdenum-silicon alloy (UNS N06219)*in the form of cold-worked seamless pipe and tube.The general requirements for pipe and tube are covered by Specification B829.1.1.1UNS N06625products are furnished in two grades of different heat-treated conditions:1.1.1.1Grade1(annealed)—Material is normally em-ployed in service temperatures up to1100°F(593°C).1.1.1.2Grade2(solution annealed)—Material is normally employed in service temperatures above1100°F(593°C)when resistance to creep and rupture is required.N OTE1—Hot-working or reannealing may change properties signifi-cantly,depending on working history and temperatures.1.1.2Alloys UNS N06219and UNS N06852are supplied in the solution annealed condition only.1.2The following precautionary caveat pertains only to the test methods portion,Section9,of this specification:This standard does not purport to address all of the safety concerns, if any,associated with its use.It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS)for this product/material as provided by the manufac-turer,to establish appropriate safety and health practices,and determine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1ASTM Standards:3B829Specification for General Requirements for Nickel and Nickel Alloys Seamless Pipe and Tube3.General Requirement3.1Material furnished under this specification shall con-form to the applicable requirements of Specification B829 unless otherwise provided herein.4.Ordering Information4.1Orders for material to this specification shall include information with respect to the following:4.1.1Alloy name or UNS number,4.1.2ASTM designation,4.1.3Condition(temper)(see1.1.1,1.1.2,Section6,and Appendix X1and Appendix X2),4.1.3.1If neither grade of N06625is specified,Grade1will be supplied.4.1.4Finish(See Appendix X2),4.1.5Dimensions:4.1.5.1Tube—Specify outside diameter and nominal or minimum wall,4.1.5.2Pipe—Specify standard pipe size and schedule, 4.1.5.3Length—Cut to length or random,4.1.6Quantity—Feet(or metres)or number of pieces,4.1.7Hydrostatic Test or Nondestructive Electric Test—Specify type of test(see6.2),4.1.8Hydrostatic Pressure Requirements—Specify test pressure if other than required by9.1.1,4.1.9Certification—State if certification is required,4.1.10Samples for Product(Check)Analysis—State whether samples for product(check)analysis should be fur-nished(see5.2),1This specification is under the jurisdiction of ASTM Committee B02on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07on Refined Nickel and Cobalt and Their Alloys.Current edition approved Dec.1,2006.Published January2007.Originally approved st previous edition approved in2004as B444-04.*New designation established in accordance with Practice E527and SAE J1086,Practice for Numbering Metals and Alloys(UNS).2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-444in Section II of that Code.3For referenced ASTM standards,visit the ASTM website,,or contact ASTM Customer Service at service@.For Annual Book of ASTM Standards volume information,refer to the standard’s Document Summary page on the ASTM website.*A Summary of Changes section appears at the end of this standard. Copyright©ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959,United States.4.1.11Purchaser Inspection—If purchaser wishes to wit-ness tests or inspection of material at place of manufacture,the purchase order must so state indicating which tests or inspec-tions are to be witnessed,and4.1.12Small-Diameter and Light-Wall Tube(Converter Sizes)—See Appendix X1and Table1.5.Chemical Composition5.1The material shall conform to the composition limits specified in Table2.One test is required for each lot as defined in Specification B829.5.2If a product(check)analysis is performed by the purchaser,the material shall conform to the product(check) analysis variations in Table2of Specification B829.6.Mechanical Properties and Other Requirements6.1Tension Test—The material shall conform to the tensile properties specified in Table1.The sampling and specimen preparation are as covered in Specification B829.6.2Hydrostatic or Nondestructive Electric Test—Each pipeor tube shall be subjected to either the hydrostatic test or to the nondestructive electric test.The type of test to be used shall be at the option of the manufacturer,unless otherwise specified in the purchase order.7.Dimensions and Permissible Variations7.1Permissible variations for material specified as small-diameter and light-wall tube(converter size)shall conform to the permissible variations prescribed in Table X1.1and Table X1.2.8.Number of Tests8.1Chemical Analysis—One test per lot.8.2Tension—One test per lot.8.3Hydrostatic or Nondestructive Electric Test—Each piece in each lot.9.Test Methods9.1Hydrostatic Test—Each pipe or tube with an outside diameter1⁄8in.(3mm)and larger and with wall thickness of 0.015in.(0.38mm)and over shall be tested in accordance with Specification B829.The allowablefiber stress for material in the condition furnished,is as follows:UNS N06625:Grade1—30000psi(207MPa)Grade2—25000psi(172MPa)UNS N06219:All—24000psi(165MPa)UNS N06852:All—21000psi(145MPa)9.1.1When so agreed upon by the manufacturer and pur-chaser,pipe or tube may be tested to11⁄2times the allowable fiber stress given above.9.1.2If any pipe or tube shows leak during hydrostatic testing,it shall be rejected.9.2Nondestructive Electric Test—Each pipe or tube shall be examined with a nondestructive electric test as per prescribed in Specification B829.10.Keywords10.1seamless pipe;seamless tube;N06219;N06625TABLE1Room Temperature Tensile Properties and Heat Treatment Including Small Diameter and Light-Wall Tubing(Converter Sizes)ABConditionTensileStrength,min,ksi(MPa)CYieldStrength(0.2%offset),min,ksi(MPa)CElongationin2in.or50.8mm(or4D),min,%Alloy N06625Grade1(annealed)D120(827)60(414)30 Grade2(solution annealed)E100(690)40(276)30 Alloy N06219All(solution annealed)96(660)39(270)30 Alloy N06852All(solution annealed)85(586)35(241)30A Not applicable to outside diameters under1⁄8in.(3.2mm)and to wall thicknesses under0.015in.(0.38mm).B Hot forming quality pipe and tubing is furnished to chemical requirements and surface inspection only.No tensile properties are required.C The minimum strength values apply only to tubing in straight lengths.D Annealed at1600°F(871°C)minimum.E Solution annealed at2000°F(1093°C)minimum,with or without subsequent stabilization anneal at1800°F(982°C)minimum to increase resistance to sensi-tization.TABLE2Chemical Requirements ElementComposition Limits,%N06852N06625N06219 Carbon0.05max0.10max0.05max Manganese0.50max0.50max0.50max Silicon0.50max0.50max0.70-1.10 Phosphorus0.015max0.015max0.020max Sulfur0.015max0.015max0.010max Chromium20.0-23.020.0min18.0-22.0...23.0max... Columbium+tantalum... 3.15min...... 4.15max... Columbium0.51-1.00...... Cobalt(if determined)... 1.0max 1.0max Molybdenum8.0-10.08.0min7.0-9.010.0max...Iron15.0-20.0 5.0max 2.0-4.0 Aluminum0.40max0.40max0.50max Titanium0.40max0.40max0.50max Copper......0.50max Nickel A Bal.58.0min Bal.A Element shall be determined arithmetically bydifference.APPENDIXES(Nonmandatory Information)X1.CONVERTER SIZESX1.1Small-diameter and light-wall tube in outside diam-eters 11⁄4in.(31.8mm)and under may be furnished in a limited range of sizes and the manufacturer should be consulted as to the various outside diameters and wall thicknesses that may be furnished.Material will have a bright finish.Such material shall conform to the requirements in Tables X1.1and X1.2.X2.CONDITIONS AND FINISHES NORMALLY SUPPLIEDX2.1ScopeX2.1.1This appendix lists the conditions and finishes in which pipe and tube (other than converter sizes)are normally supplied.These are subject to change,and the manufacturer should be consulted for the latest information available.X2.2Cold-Worked Tube and PipeX2.2.1Cold–Drawn,Annealed or Solution Annealed with Ground Outside Diameter —The inside diameter may have a bright finish when material is annealed or solution annealed in a protective atmosphere;otherwise,the inside diameter issupplied descaled as necessary.It is available in sizes 1⁄2to 4in.(12.7to 102mm),incl,in outside diameter in both normal and heavy-wall tube,and pipe sizes,all schedules,of correspond-ing outside-diameter dimensions.X2.2.2Cold–Drawn,Annealed or Solution Annealed and Pickled (Not Ground)—Outside and inside diameter will have dull,matte (pickled)surfaces.Available in sizes 1⁄2to 65⁄8in.(12.7to 168mm),incl,in outside diameter in both normal and heavy-wall tube,and pipe sizes,all schedules,of correspond-ing outside-diameter dimensions.TABLE X1.1Permissible Variations for Small-Diameter and Light-Wall Tube (Converter Sizes)A ,B ,C ,D ,E,F ,GSpecified Outside Diameter,in.(mm)Outside DiameterInside Diameter Wall Thickness,%PlusMinus,in.(mm)Plus Minus Plus Minus Under 3⁄32(2.4)3⁄32to 3⁄16(2.4to 4.8),excl 0.002(0.05)0.003(0.08)00000.002(0.05)0.003(0.08)101010103⁄16to 1⁄2(4.8to 12.7),excl 0.004(0.10)000.004(0.10)10101⁄2to 11⁄4(12.7to 31.8),incl0.005(0.13)00.005(0.13)1010AOvality,Normal-Wall Tube —Ovality will be held within 2%of the theoretical average outside diameter.BOvality,Light-Wall Tube —Ovality will be held within 3%of the theoretical average outside diameter.CWall Tolerances,Light-Wall Tube —The plus and minus wall tolerance shown in the table shall apply down to and including 0.005in.(0.13mm)in wall thickness.For wall thicknesses less than 0.005in.(0.13mm),the tolerance shall be 60.0005in.(0.013mm).DRandom Lengths:Where nominal random lengths on tubing 1⁄8in.(3.2mm)and larger in outside diameter are specified,a length tolerance of 631⁄2ft (1.07m)applies to the nominal length.This is a total spread of 7ft (2.13m).Random lengths in sizes 1⁄8in.(3.2mm)and larger in outside diameter shall be subject to a length range of 5to 24ft (1.52to 7.32m).Long random lengths are subject to a range from 15to 22ft (4.57to 6.71m).Random lengths in sizes up to,but not including 1⁄8in.(3.2mm)in outside diameter,and fragile light-wall tubes over this outside diameter are subject to the length range from 1to 15ft (0.30to 4.57m).ECut Lengths —Tolerances on cut lengths shall be in accordance with Table X1.1.FStraightness —Round tubing is subject to a straightness tolerance of 1part in 600[equivalent to a depth of arc of 0.030in.(0.76mm)in any 3ft (0.91m)of length].GWhen specified,the tolerance spreads of this table may be applied as desired.However,when not specified,the tolerances in this table will apply.It should be noted that inside diameter tolerances are based upon the outside diameter range.TABLE X1.2Tolerances on Cut Lengths of Light-Wall TubeLength,ft (m)Tube Size,in.(mm)Permissible Variations,in.(mm)Over Under Under 1(0.30)1to 4(0.30to 1.22),inclup to 1.250(31.8),incl up to 1.250(31.8),incl 1⁄32(0.8)1⁄16(1.6)0(0)0(0)Over 4to 10(1.22to 3.0),incl up to 1.250(31.8),incl 3⁄32(2.4)0(0)Over 10(3.0)up to 1.250(31.8),incl3⁄16(4.8)0(0)SUMMARY OF CHANGESCommittee B02has identified the location of selected changes to this standard since the last issue(B444-04) that may impact the use of this standard.(Approved December1,2006.)(2)Revision of4.1,6.2,8.3,9.1.2,and9.2.(1)Introduction of nondestructive electric test in lieu ofhydrostatic test at the option of the manufacturer.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this ers of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed everyfive years and if not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959, United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the aboveaddress or at610-832-9585(phone),610-832-9555(fax),or service@(e-mail);or through the ASTM website().。

NS143镍基合金材料使用（对应牌号NS1403）【供应品种】NS143圆棒、NS143无缝管、NS143板材、NS143带材、NS143管材【冶韩实业（上海）有限公司周先生、郭女士、康女士、郑先生】技术顾问：周工/TEL：①③⑧①⑥①⑥⑥③④③NS143(NS1403)耐蚀合金NS1403是具有很多优异性能的耐蚀合金，对氧化性和中等还原性腐蚀有很好的抵抗能力，具有优异的抗应力腐蚀开裂能力和好的耐局部腐蚀能力在很多化工工艺介质中有满意的耐蚀特性。

NS1403的化学成分NS1403的化学成分NS1403可以用来湿法冶金及硫酸工业装置等等。

在材料领域中,可以用来制作钢材、锻件、带材、丝材、螺栓、螺母等等。

NS143国内代替材料，NS143镍基耐蚀合金NS1403对应牌号stjpk21499.专用工装专用工装是以工件的针对性为主，结合炉型进行设计与制作，以满足工件的特殊装载要求的工装夹具。

其作用主要有以下几个方面。

对于化学热处理工件，要求保证工件在炉内与炉气充分而均匀地接触，同时放置要稳妥，不致引起变形。

本章简单的阐述了NS143合金的耐蚀性、NS143标准成分、NS143尺寸规格，这些特性或多或少的影响着NS143价格，当然影响NS143合金价格还包括NS143硬度、NS143密度及NS143热处理状态等。

若含有第三元素如Zn、Mn、Al等，则相应地被称为锌白铜、锰白铜、铝白铜等。

铜绿与铜基体结合牢固，本身致密，能防止铜继续腐蚀。

白铜是以镍为主要合金元素的铜合金。

工业中采用的黄铜含锌量不超过45，含锌量再高将会产生脆性，使合金性能变坏。

铝合金衬塑管与钢衬塑管的区别钢衬塑管是一种传统的复合管管材，它的内管同样采用食品安全级塑料，能起到延长管道寿命提高卫生级别的作用。

但是钢衬塑管道的重量相比铝合金衬塑管依然大很多，所以不得不采用传统的卡口式刚性连接，因此在一定情况下与不锈钢管具有同样的安全隐患。

|锯床切割NS143卷板--主要用于规格形状的切割加工| 线切割1NS143平板--效率底。

Incone625（2.4856）镍基合金钢管Alloy 625 Inconel625 N06625 GH3625、GH625、NC 22 DNb、W.Nr.Inconel625、NiCr22Mo9Nb、NA 21 Inconel625、UNS NO6625 NiCr22Mo9Nb)Inconel625奥氏体镍合金牌号及化学成分: 执行标准：{EN 10095-1999}碳 C：0.03-0.10 ❶❺❽-零❶❾--❶-❻❼❾❽上海冶韩锰 Mn：0.50硅 Si：0.50磷 P：0.02硫 S：0.015镍 Ni: ≥58.0铬 Cr：20.0-23.0钴 Co: 1.0铁Fe：5.0鋁Al：0.40钛Ti：0.40铜Cu：0.50钼 Mo: 8.0-10.0其它：Nb+Ta: 3.15-4.5-15DIN Inconel625 的物理性能:密度 8.4 g/cm3熔点 1290-1350℃DIN Inconel625 在常温下合金的机械性能的最小值:合金和状态抗拉强度Rm N/mm2 625 ~760屈服强度RP0.2N/mm2 345延伸率A5 % 30布氏硬度HB ≤220应用领域：软化退火后的低碳合金广泛的应用于化工流程工业，较好的耐腐蚀性和高强度使之能作为较薄的结构部件。

可以应用于接触海水并承受高机械应力的场合。

典型应用领域：含氯化物的有机化学流程工艺的部件，尤其是在使用酸性氯化物催化剂的场合用于制造纸浆和造纸工业的蒸煮器和漂白池烟气脱硫系统中的吸收塔、再加热器、烟气进口挡板、风扇（潮湿）、搅拌器、导流板以及烟道等用于制造应用于酸性气体环境的设备和部件乙酸和乙酐反应发生器硫酸冷凝器。

镍基合金管标准
摘要：
一、镍基合金管的概述
二、镍基合金管的分类与性能
三、镍基合金管的应用领域
四、镍基合金管的生产工艺与标准
五、镍基合金管的市场前景与挑战
正文：
镍基合金管是一种具有良好耐腐蚀性能和高温性能的合金管道，主要应用于各种苛刻环境下的流体输送。

镍基合金管具有高强度、良好的韧性以及良好的焊接性能，被广泛应用于航空航天、石油、化工、核工业等领域。

镍基合金管根据成分和性能的不同，可分为高温镍基合金管、耐腐蚀镍基合金管和耐磨镍基合金管等。

其中，高温镍基合金管具有良好的高温强度和抗氧化性，适用于高温环境下的流体输送；耐腐蚀镍基合金管具有良好的耐腐蚀性能，适用于各种酸、碱、盐等腐蚀性介质的输送；耐磨镍基合金管则具有较高的硬度和耐磨性，适用于磨损环境下的流体输送。

镍基合金管的生产工艺主要包括熔炼、铸锭、轧制、拉拔和焊接等步骤。

熔炼是生产镍基合金管的关键环节，需要严格控制熔炼温度、铸造速度和成分比例等参数，以保证合金管的性能和质量。

此外，镍基合金管的生产还需遵循相关国家和行业标准，以确保产品的可靠性和安全性。

随着我国经济的快速发展，镍基合金管在航空航天、石油、化工等领域的
需求不断增加，市场前景广阔。

然而，我国镍基合金管行业仍面临一些挑战，如生产技术水平相对落后、高端产品依赖进口等。

第46卷第6期 2017年11月石油化工设备PETRO-CHEM ICAL EQUIPMENTVol. 46 No. 6Nov. 2017文章编号：1000-7466(2017)06-0008-06 ①镍基合金换热管多频涡流检测技术试验研究廖兵兵，张玉福，田利，李军，王强，杨栋，孟沧海(甘肃蓝科石化高新装备股份有限公司，甘肃兰州730070)摘要：针对镍基合金换热管在运行过程中可能产生的腐蚀失效模式，设计并制作了相应的Incoloy 825镍基合金涡流对比样管，选择了合适的自比差动内穿过式探头。

经分析与研究，确定了高效、准确的多频滿流检测技术，利用多频滿流探伤仪中的差动和绝对通道分别对换热管局部腐蚀和均匀腐蚀缺陷进行检测。

通过不同缺陷特征试验研究，确定了最佳的多频涡流检测参数，确保了检测 过程中对镍基合金换热管局部腐蚀及均匀腐蚀缺陷有足够的分辨率及信噪比，检测精度达到±5%，检测结果更加可靠。

关键词：换热管；镍基合金；多频涡流检测技术；腐蚀缺陷；试验研究中图分类号：TQ051.503; TE965.03 文献标志码：B doi:10.3969/：j.issn.1000-7466.2017.06.002Experimental Study on Multi-frequency Eddy Current Testing Technologyof Nickel-based Alloy Heat Exchanger TubesLIAOBing-bing，ZH AN G Yu-fu，T IA N L i，L l ju n，W ANGQiang，YANGDong，MENGCang-hai(Lanpec Technologies Limited，Lanzhou 730070，China)檪"^檪檪檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪檪檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪檪檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪"^檪檪檪"^檪"^檪"^檪"^檪(ZU O Chang-ming，ZH AO Chun-pei，CHEN H ong，et al. XPS Study of Oxide Layers on the Surface o fU ra- nium[J]. Journal of Sichuan University(Natural Sci­ence Edition) ,1998,35(3)；424-428.)[15] Descostes M，Mercier F，Thromat N，et al. Use of XPSin the Determination of Chemical Environment and a Data Basis in Binding Energies for Fe and S Reference Compounds and Applications to the Evidence of Sur­face Species of an Oxidized Pyrite in a Carbonate Medi- um[J]. Applied Surface Science,2000,165 ；288-302. [6]吴正龙.X射线诱导俄歇电子能谱(X A E S)的应用[J].现代仪器，2009，15(1):58-61.(W U Zheng-long. Application of X-ray Induced Auger Electron Spectroscopy (X A E S) [J]. Modern Instru­ments, 2009 ,15(^1) ：58-61.)[17] Yun Wang,Jun H u,Y u qiW an g,et al. A New Methodfor Preventing Corrosion Failure： Thiourea and Hexa­methylenetetramine as Inhibitor for Copper, Bull [J].KoreanChem. Soc. ,2016(37) ； 1797-1811.[18] Tokuda K, Gueshi T，Matsuda H. Voltammetry atPartially Covered Electrodes ： Part II. Linear PotentialSweep and Cyclic Voltammetry [J ] ElectroanalChem ，1979(1) 29-38[9]王春涛.金属铜腐蚀的防护[M].北京：中国石化出版社，2006：32-37.(W AN G Chun-tao. Metal Copper Corrosion Protection[M]. Beijing：China Petrochemical Press Co. Ltd.，2006：32-37 )[20]胡军，王赞，余历军，等.硫酸银对氯离子环境下Al-l〇y690缓蚀特性的电化学分析[J].化工学报，2014,65(10)4032-4038.(H U J u n，W A N G Y u n，Y U L i-u n，etaL Electrochem­ical Analysis of Inhibition by Silver Sulfate for Al-loy690 in Chloride Solution[J]. CIESC Journal, 2014,65(10)4032-4038.)(张编）①收稿日期：2017-06-10基金项目：甘肃蓝科石化高新装备股份有限公司基金项目（16JCJ005):换热管束涡流检测与应用作者简介：廖兵兵（1989-)，男，江西抚州人，助理工程师，学士，从事无损检测、压力容器及管道检验等工作。

低温碳钢与镍基合金复合管的焊接工艺探讨关键词：低温碳钢；镍基合金复合管；焊接工艺本研究项目主要是将低温碳钢带 Inconel 625 合金内衬作为母材的复合管线，对其进行积极的异种钢焊接工艺开发。

项目运行过程中管线输送介质设置为天然气。

管线母材材质主要是ASTM A333 Gr.6，管内壁将 3 mm 厚的 CLAD UNS N06625镍基耐蚀合金当作防腐层。

1.母材焊接性研究在对焊接工艺进行评定的时候，需要将母材温度控制为-50 ℃，复合层需要UNS N06625（Inconel 625）镍基耐蚀合金，ASTM 标准中对材料的化学成分进行详细规定[1]。

低温钢母材和镍基层在化学成分方面具有较大的差异，但是其在进行焊接的过程中，需要将合金元素从镍基合金逐渐扩散为低温钢，从而保证镍基层的合金元素稀释，将材料组织的性能改善，防止各种稀释现象的出现，整个过程中需要将高合金成分作为焊材，利用的焊接方法为浅熔深方法。

1.1具有氧化性能较强的特点镍基合金的一个显著特点在于易氧化。

在整个进行焊接的过程中，一定要详细的做好气体保护，如果镍基层在焊接的过程中发生氧化现象，就会直接导致接头性能降低。

1.2熔池金属相对流动性差镍基合金焊缝的显著特点就是金属流动性差，这就需要在进行焊接的过程中，加强对各种摆动工艺的利用，尽量在焊接的过程中使用短的电弧，这样可以从根本上防止咬边产生。

1.3热输入温度控制在进行镍基合金焊接的时候，如果热输入的温度过高，其中就会有碳化物在合金晶界析出，这就属于是敏化现象。

所以必须要加强对热输入温度控制，用较低的热输入和控制层间温度实现镍基合金焊接。

2焊接工艺2.1焊接方法和焊材在焊接之前，要想保证焊接的性能，就要提前对焊接性进行分析，一般情况下，我们可以选择GTAW和SMAW相结合的方法进行焊接，焊丝和焊条的选择需要严格根据化学成分表分析。

2.2做好焊前准备在焊前需要将试验母材确定为Φ508×79.8×300 mm，焊接位置设定为6G。