采用双辉等离子表面合金化技术在TiNi合金表面制备钼合金层，分析了钼合金层的物相和成分分布，利用带电化学测试系统的超声波振动空蚀试验机和往复摩擦磨损试验机分别研究钼合金化试样和基体合金的电化学性能和耐磨性能。结果表明：在TiNi合金表面制备了成分呈梯度分布的钼合金层，该层中主要含有Mo、MoTi和Ni3 Ti相；在空蚀条件下合金基体的钝化能力受到抑制，钼合金化试样则呈现出一定程度的钝化能力；两者的磨损机制均是磨粒磨损和黏着磨损，合金基体的磨痕宽度远大于钼合金化试样的，并且黏着磨损更为严重。
Mo alloyed layer on the surface of TiNi alloy substrate was obtained by using the double glow plasma surface alloying technique,and phase and composition distribution of the Mo alloyed layer were investigated. The electrochemical performance and wear resistance of Mo alloyed layer and TiNi alloy substrate samples were studied by by ultrasonic vibration cavitation erosion test machine with electrochemical measurement system and the reciprocating friction and wear tester.The results show that the atomic concentration of Mo alloyed layer presented gradient distribution and Mo alloyed layer was mainly composed of Mo,MoTi and Ni3 Ti phases.The passivation capability of the substrate was suppressed during the cavitation,while Mo alloyed sample showed the passivation in a certain extent.The wear mechanism of Mo alloyed sample and the substrate alloy sample were abrasive wear and adhesive wear.The wear scar width of TiNi alloy substrate was much larger than that of Mo alloyed sample,and the adhesive wear of the substrate alloy was more serious.
参考文献
| [1] | F. T. Cheng;P. Shi;H. C. Man.Effect of electrolytic hydrogen pre-charging on the cavitation erosion resistance of NiTi: a preliminary study[J].Scripta materialia,20022(2):89-94. |
| [2] | N.B. Morgan.Medical shape memory alloy applications--the market and its products[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20041/2(1/2):16-23. |
| [3] | Berger Gorbet M;Broxup B;Rivard C;Yahia LH.Biocompatibility testing of NiTi screws using immunohistochemistry on sections containing metallic implants.[J].Journal of biomedical materials research, Part B. Applied biomaterials,19962(2):243-248. |
| [4] | Hitoshi Hiraga;Takashi Inoue;Hirofumi Shimura;Akira Matsunawa.Cavitation erosion mechanism of NiTi coatings made by laser plasma hybrid spraying[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,19992(2):272-278. |
| [5] | S. K. Wu;H. C. Lin;C. H. Yeh.A comparison of the cavitation erosion resistance of TiNi alloys, SUS304 stainless steel and Ni-based self-fluxing alloy[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20001/2(1/2):85-93. |
| [6] | Es Souni M;Es Souni M;Fischer Brandies H.On the properties of two binary NiTi shape memory alloys. Effects of surface finish on the corrosion behaviour and in vitro biocompatibility.[J].Biomaterials,200214(14):2887-2894. |
| [7] | Haidopoulos M;Turgeon S;Sarra-Bournet C;Laroche G;Mantovani D.Development of an optimized electrochemical process for subsequent coating of 316 stainless steel for stent applications[J].Journal of Materials Science. Materials in Medicine,20067(7):647-657. |
| [8] | 朱利华;许晓静;刘敏;牛小丫;陈婷卓.微弧氧化对常规和超细TiNi合金表面性能的影响[J].中国有色金属学报,2014(4):1014-1019. |
| [9] | K.W. Ng;H.C. Man;T.M. Yue.Corrosion and wear properties of laser surface modified NiTi with Mo and ZrO_2[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,200821(21):6725-6730. |
| [10] | 王秋霞.微量元素钼与人体健康[J].微量元素与健康研究,2003(04):58-59. |
| [11] | 赵远涛;王振霞;宁来元;于盛旺;贺志勇.TiNi合金表面双辉等离子渗钼合金化后的结构与性能[J].机械工程材料,2013(5):10-14. |
| [12] | 骆素珍;郑玉贵;敬和民;姚治铭;柯伟.空蚀对20SiMn在3%NaCl溶液中的电化学腐蚀行为的影响[J].腐蚀科学与防护技术,2003(6):311-314. |
| [13] | 龙霓东;朱金华.含有Nb、Ce的形状记忆合金FeMnSiCrNi在3.5%NaCl溶液中的空蚀行为[J].稀有金属材料与工程,2009(7):1169-1173. |
| [14] | 尹晓燕;由宏新;丁信伟;殷涛.工业纯镍在常温烧碱溶液中的空蚀行为研究[J].氯碱工业,2006(1):40-43. |
| [15] | 骆素珍;敬和民;郑玉贵;姚治铭;柯伟.20SiMn在蒸馏水和3%NaCl溶液中的空蚀行为[J].中国腐蚀与防护学报,2003(4):206-210. |
| [16] | Cr-Ni型水轮机材料电化学腐蚀和抗空蚀行为[J].中国腐蚀与防护学报,2005(05):312-316. |
| [17] | Liu R.;Li DY..Modification of Archard's equation by taking account of elastic/pseudoelastic properties of materials[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,20012(2):956-964. |
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