梯度结构对氧化铝陶瓷涂层结合强度及抗冲击性能影响的试验研究_程西云
- 格式:pdf
- 大小:2.69 MB
- 文档页数:6
基体偏压对 Cr Ti Al N 镀层摩擦磨损性能的影响严少平1 ,2 , 孙雅琴1 冰2 张桂梅1 , 蒋百灵2, 段 , ( 1 . 安徽理工大学 数理系 ,安徽 淮南 232001 ; 2 . 西安理工大学 材料科学与工程学院 ,陕西 西安 710048)摘 要 :应用闭合场非平衡磁 控溅射离子镀技术在高速 钢和单晶硅基体上制备 了 一 组 随 基 体 偏 压 变 化 的Cr TiAlN 梯度镀层 ,并测试了其摩擦学性能 。
结果表明 ,随偏压的增大 ,镀层的厚度 、硬度 、膜基结合强度和耐磨性能表现出先升后降 、摩擦系数较低 、具有良好的韧性 ;在 - 75 V 左右偏压下沉积的镀层具有最佳的综合 性能 。
通过 XRD 、SEM 的分析表明 ,由 Cr N 、TiN 、AlN 、Cr 和 Ti 2 N 等微晶组成的复合镀层 ,晶粒细小 ,属于纳 米级颗粒 ,从而使镀层具有良好的摩擦学性能 。
关键词 :非平衡磁控溅射离子镀技术 ; 基体偏压 ; 显微硬度 ; 摩擦磨损性能 中图分类号 : T H1171 3文献标识码 : A文章编号 :100325060 (2007) 0820966205Inf l u ence of substrate bia s vol tage on f r ict i on an d w ear propert i es of C r T i A l N coat i ngsY A N Shao 2pi n g1 ,2, SU N Y a 2qi n g 1 , D U A N Bi n g 2 , Z H A N G G ui 2mei 1 , J IA N G Bai 2li n g 2( 1 . Dep t . of Mat he m ati cs a nd Physics , A n hui U ni ver s it y of Science a nd Technolo gy , Huai nan 232001 , Chi na ; 2 . School of Mat e rial s Sci 2ence a nd Engi neeri ng , X i ’a n U ni v er sit y of Technolo gy , X i ’a n 710048 , Chi na )Abstract :A se r ie s of Cr TiA l N ha r d gra d ie n t coati n gs we r e p r o d uced u s i n g t h e clo s e d fiel d un b ala n ce d ma g net ro n sp u t t e r io n p l ati n g t e ch n ique o n M2 hi g h sp e ed st e el a n d Si s ub s t r at e s wit h sub s t r at e bia s volt a g e cha n gi n g , a n d t h e f r ictio n a n d wea r p r op e r t ie s were st u died . The t e s t re s ult s of co a ti n g p e r 2 fo r ma n ce s ho w t h at t h e t h ick n e s s , mic ro 2ha r d ne s s , a d he s io n a n d wea r re s i s t a n ce of t h e coati n g i n 2 crea s e fi r s t l y a n d t h e n f a ll alo n g wit h t h e ri s e of t h e a b s ol u t e val u e of mi n u s bia s volt a g e ,a n d t h at t h e ha r d gra d ie n t coati n g ha s e x celle n t to u gh n e s s a n d lo w f r ictio n co e ff icie n t . The t e s t re s ult s al s o sho w t h at t h e coati n gs depo s it e d at - 75 V have f a v o r a b le co mp r e h e n s ive p e r fo r ma n ce . The co m po s itio n a n d st r u ct u re of t h e coati n gs we r e st u die d u s i n g XRD a n d S EM . A n al y si s re s ult s i n dicat e t h at t h e mai n p a r t of t h e coati n g wa s fo r med a s a na n o 2scale multila y e r . The grai n s i n t h e Cr A l TiN coati n gs i n cl u deCr N , TiN , A l N , Cr a n d Ti 2 N micro 2cr y st a l grai n s t h e size of w h ic h belo n g s to na n o 2scale ,t h u s ma k 2 i n g t h e Cr TiA l N ha r d gra d ie n t coati n g have e x celle n t t ri b olo g ical p e rfo r ma n ce .K ey w ords :un b ala n ce d ma g net r o n sp u t t e r io n p l ati n g t e ch n ique ; sub s t r at e bia s volt a g e ; mic ro 2ha r d 2 ne s s ; f r ictio n a n d wea r p rop e r t ie s模具和各种耐磨零件及装饰镀层上[ 2 , 3 ] 。
物理气相沉积TiAlN涂层的研究进展*曹华伟张程煜乔生儒曹晓雨(西北工业大学超高温结构复合材料国防科技重点实验室,西安710072)摘要:本文概述了物理气相沉积TiAlN涂层的研究现状及发展趋势,详细分析了制备方法、Al元素含量、N2流量、基体偏压、温度以及其他元素对TiAlN涂层的结构、硬度、高温抗氧化性和耐腐蚀性等性能的影响。
目前制备的TiAlN涂层存在残余应力较大,表面液滴数量较多和涂层致密度差等问题。
为进一步促进TiAlN涂层的应用,今后还需探索该涂层的制备方法,优化其制备工艺。
多元纳米复合涂层和超点阵多层涂层是两个具有潜力的发展方向。
关键词:TiAlN涂层制备方法晶体结构硬度高温抗氧化性综述Recent progresses in physical vapor deposited TiAlN coating CAO Huawei ZHANG Chengyu QIAO Shenru CAO Xiaoyu(National Key Laboratory of Thermostructure Composite Materials, Northwestern PolytechnicalUniversity, Xi′an 710072, China)Abstract: The research and development of physical vapor deposited TiAlN coatings are summarized in the paper. The preparation methods, aluminum content, nitrogen flow rate, substrate bias, temperature and alloying elements had significant effects on the properties of TiAlN coatings, including crystal structure, hardness, high temperature oxidation resistance and corrosion resistance. Although the coating was used in many applications, there were many drawbacks which limit its performance, such as high residual stress, formation of large droplets and poor density. For further application, new preparation method should be explored. Meanwhile, the optimization of the processing technology should be made. It is potential to develop multiple nano-composite coating and superlattice multi-layer coating in the future.Key words: TiAlN coatings, preparation methods, crystal structure, hardness, high temperature oxidation resistance, review0前言*国家自然科学基金面上项目(50702045);高等学校博士学科点专项科研基金(20070699007)和新世纪优秀人才支持计划(NCET-08-0460)第一作者:曹华伟(1986~),河南周口,男,西北工业大学超高温结构复合材料实验室研究生、主要研究多弧离子镀TiAlN涂层的结构与性能。
氧化铝陶瓷多粒子冲蚀磨损的数值模拟∗胡彪;纪秀林;段慧;丁伟【摘要】采用LS⁃DYNA有限元分析软件建立多粒子冲蚀氧化铝陶瓷的有限元模型,运用LS⁃DYNA求解器对冲蚀过程进行仿真,通过观察靶材等效应力的分布分析冲蚀机制。
结果表明:靶材体积磨损率随着冲蚀角度的增大而增大,在冲蚀角度达到90°时,体积磨损率达到最大值,表现出典型的脆性材料的冲蚀特性;靶材的体积磨损率随着冲蚀速度的增大而增大,且具有良好的线性增长关系;靶材的体积磨损率整体上随着冲击粒子粒径的增大而增大,但在达到临界尺寸的一段时间内会随着粒径的增大而减小;靶材会吸收粒子的一部分动能转化为自己的内能,但随着粒子冲击结束而离开靶材表面,靶材表面形成微裂纹以及部分单元失效,因此靶材的能量随着单元的失效而减小。
%LS⁃DYNA was used to establish the finite element model of multi particles impacting on alumina ceramics, and the erosion process was simulated by using LS⁃DYNA solver� The erosion mechanism was analyzed by observing the distribution of Von Mises stress of the target� The results show that volume loss rate of the target is increased with increas⁃ing the impact angle, and volume loss rate reaches the maximum value at the impact angle of 90°, which exhibits erosio n characteristics of typical brittle materials� Volume loss rate of the target is increased with increasing the impact velocity, and they have good linear growth relationship� Volume loss rate of the target is increased with increasing the impact parti⁃cle size as a whole, but it is decreased within a period of time when the impact particle size reaches a critical size� The target absorbs part of the particles kinetic energy and transforms it intointernal energy, and when the particles leave the target surface,micro⁃crack and some elements failure are formed on the target surface, therefore, the target total energy is decreased with the failure of the elements.【期刊名称】《润滑与密封》【年(卷),期】2015(000)004【总页数】5页(P49-53)【关键词】冲蚀磨损;氧化铝陶瓷;脆性材料;多粒子;冲蚀机制【作者】胡彪;纪秀林;段慧;丁伟【作者单位】河海大学常州校区机电工程学院江苏常州213022;河海大学常州校区机电工程学院江苏常州213022;河海大学常州校区机电工程学院江苏常州213022;河海大学常州校区机电工程学院江苏常州213022【正文语种】中文【中图分类】TH117.1冲蚀磨损是固体颗粒随着高速流体对材料表面冲击造成的材料损坏,是一个动态的失效过程[1]。
复合材料学报第24卷 第5期 10月 2007年A ct a M ateri ae C om p o sit ae Sini c aVol 124No 15October2007文章编号:100023851(2007)0520006207收稿日期:2006211213;收修改稿日期:2007203202基金项目:国防基础科研基金项目(A2720060277)通讯作者:李玉龙,教授,博士生导师,长江学者,研究方向:冲击动力学,复合材料力学 E 2mail :liyulong @SiC P /A l 功能梯度装甲板抗侵彻性能的试验与数值模拟虞青俊,李玉龙3,邓 琼,汤忠斌,徐 绯(西北工业大学航空学院,西安710072)摘 要: 采用粉末冶金方法制备碳化硅陶瓷颗粒(SiC P )增强金属铝基复合材料板(MMCs ),并采用热压扩散法制备功能梯度装甲板(F GM )。
利用高速冲击空气炮系统,对纯铝靶板和两种不同铺层结构的功能梯度装甲靶板进行侵彻试验,并利用L S 2D YNA 软件对侵彻试验过程进行数值模拟分析,同时考察等厚、等面密度下SiC 颗粒分布对抗侵彻性能的影响。
研究结果表明,功能梯度板的抗侵彻性能比纯铝板好,而两种不同铺层结构功能梯度板的抗侵彻性能相差不大。
数值计算结果与现有试验结果取得了较好的一致,说明了数值模拟的有效性。
从数值计算结果可以看出,层状功能梯度板比等厚、等面密度均质复合材料靶板的抗侵彻能力好,并可近似地认为等厚、等面密度下多层功能梯度板的抗侵彻性能对颗粒分布不敏感。
关键词: 侵彻;L S 2D YNA ;功能梯度装甲板;碳化硅颗粒;数值模拟中图分类号: TB331;TB33011 文献标识码:APenetration of SiC P /Al f unctionally graded plates ———Experiment and numerical simulationYU Qingjun ,L I Yulo ng 3,DEN G Qiong ,TAN G Zhongbin ,XU Fei(School of Aeronautics ,Northwestern Polytechnical University ,Xi πan 710072,China )Abstract : The penetration tests of two kinds of f unctionally graded plates (F GM )were performed by using a high speed air 2gun system.The plates consist of layered structures with two stack sequences prepared by the vacuum hot2pressure diff usion processing.Each layer is made f rom aluminum matrix composites reinforced by different volumefraction SiC particles (MMCs )by the vacuum hot 2pressure sintering method.The numerical simulations of penetra 2tion process were carried out by L S 2D YNA code.The numerical simulations were also performed to explore the op 2timal distribution of certain average SiC P f raction.The test results show that the anti 2penetration ability of the f unc 2tionally graded plate is much better than that of the pure aluminum plate.The difference of anti 2penetration ability between the two tested f unctionally graded plates is not apparent.The numerical simulation results are in good agreement with experimental results.From the simulation results ,the layered plates have superior anti 2penetration ability to the that of homogeneity plate of MMCs.And the anti 2penetration of layered plates with the same thickness and the same areal density can be approximately regarded as not sensitive to the particle distribution.K eyw ords : penetration ;L S 2D YNA ;f unctionally graded plate ;SiC particle ;numerical simulation 陶瓷颗粒增强的金属基复合材料不仅具有很高的比刚度、比强度及耐磨性,而且具有良好的抗冲击性能。
物理气相沉积TiAlN涂层的研究进展*曹华伟张程煜乔生儒曹晓雨(西北工业大学超高温结构复合材料国防科技重点实验室,西安710072)摘要:本文概述了物理气相沉积TiAlN涂层的研究现状及发展趋势,详细分析了制备方法、Al元素含量、N2流量、基体偏压、温度以及其他元素对TiAlN涂层的结构、硬度、高温抗氧化性和耐腐蚀性等性能的影响。
目前制备的TiAlN涂层存在残余应力较大,表面液滴数量较多和涂层致密度差等问题。
为进一步促进TiAlN涂层的应用,今后还需探索该涂层的制备方法,优化其制备工艺。
多元纳米复合涂层和超点阵多层涂层是两个具有潜力的发展方向。
关键词:TiAlN涂层制备方法晶体结构硬度高温抗氧化性综述Recent progresses in physical vapor deposited TiAlN coating CAO Huawei ZHANG Chengyu QIAO Shenru CAO Xiaoyu(National Key Laboratory of Thermostructure Composite Materials, Northwestern PolytechnicalUniversity, Xi′an 710072, China)Abstract: The research and development of physical vapor deposited TiAlN coatings are summarized in the paper. The preparation methods, aluminum content, nitrogen flow rate, substrate bias, temperature and alloying elements had significant effects on the properties of TiAlN coatings, including crystal structure, hardness, high temperature oxidation resistance and corrosion resistance. Although the coating was used in many applications, there were many drawbacks which limit its performance, such as high residual stress, formation of large droplets and poor density. For further application, new preparation method should be explored. Meanwhile, the optimization of the processing technology should be made. It is potential to develop multiple nano-composite coating and superlattice multi-layer coating in the future.Key words: TiAlN coatings, preparation methods, crystal structure, hardness, high temperature oxidation resistance, review0前言*国家自然科学基金面上项目(50702045);高等学校博士学科点专项科研基金(20070699007)和新世纪优秀人才支持计划(NCET-08-0460)第一作者:曹华伟(1986~),河南周口,男,西北工业大学超高温结构复合材料实验室研究生、主要研究多弧离子镀TiAlN涂层的结构与性能。
【电沉积技术】电泳沉积氧化铝陶瓷涂层的制备及耐腐蚀性能王志义,管相杰(青岛科技大学材料科学与工程学院,山东青岛266042)摘要:以氧化铝溶胶为前驱体,采用电泳沉积和低温煅烧法在低碳钢基体上制备了氧化铝陶瓷涂层,并对其成分、表面形貌及耐蚀性进行了研究。
结果表明,将低碳钢片置于以乙醇作为分散介质的0.45mol/L 氧化铝溶胶中,在60V 恒电位下沉积180s 后,再于马弗炉中700°C 下煅烧5min ,所制得的氧化铝陶瓷涂层在2mol/L 盐酸溶液中具有良好的耐蚀性。
关键词:氧化铝溶胶;电泳沉积;陶瓷涂层;制备;表面形貌;耐蚀性中图分类号:TQ174.7文献标识码:A文章编号:1004–227X (2007)09–0001–04Preparatio n and corrosio n r esistance of electrophoretically-deposited Al 2O 3cer amic coa ting ∥WANG Zhi-yi,GUAN Xiang-jieAbstr act:Al 2O 3ceramic coatings were prepared on mild steel substrates with alumina sol as precursor by electro-phoretic deposition and low-temperature sintering.The composition,surface morphology and corrosion resistance of the prepared coatings were studied.The results showed that the Al 2O 3ceramic coating prepared by electrophoresis in a 0.45mol/L AlOOH/ethanol sol at 60V for 180s followed by sintering in muffle furnace at 700°C for 5min has good corrosion resistance in 2mol/L HCl solution.Keywor ds:alumina sol;electrophoretic deposition;ceramic coating;preparation;surface morphology;corrosion resistance Fir st-author ’s addr ess:College of Materials Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China1前言随着现代科学技术的发展,陶瓷/金属复合材料受到了世界各国研究人员的高度重视。