| 引用本文: | 王振霞,贺志勇,王文波,王英芹,唐宾.钛合金表面Nb-C复合渗层摩擦磨损性能的研究[J].材料科学与工艺,2011,19(2):122-125.DOI:10.11951/j.issn.1005-0299.20110225. |
| WANG Zhen-xia,HE Zhi-yong,WANG Wen-bo,WANG Ying-qin,TANG Bin.Study on frictional wear performance of titanium alloy after surface Nb-C composite treatment[J].Materials Science and Technology,2011,19(2):122-125.DOI:10.11951/j.issn.1005-0299.20110225. |
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| 摘要: |
| 为提高钛合金表面的耐磨性能,采用等离子表面合金化技术在Ti6Al4V(TC4)合金表面形成含Nb的梯度改性层,然后进行渗C复合处理,得到Nb-C复合改性层,研究了改性层的显微组织形貌、成分分布、相结构特征及硬度分布,并进行了球盘摩擦磨损实验.结果表明,Nb、C元素呈梯度分布,合金层主要由Ti、TiC、Nb2C、NbC等相组成,Nb、C复合渗后表面硬度达800 HK.摩擦磨损实验表明,Nb-C表面复合处理后耐磨性明显提高. |
| 关键词: 摩擦磨损性能 Ti6Al4V(TC4) 渗Nb Nb-C复合处理 |
| DOI：10.11951/j.issn.1005-0299.20110225 |
| 分类号: |
| 基金项目:山西省自然科技基础研究基金资助项目(2008012008-3);国家自然科学基金资助项目(51071106,50271045);国家高技术研究发展计划资助项目(2007AA03Z521) |
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| Study on frictional wear performance of titanium alloy after surface Nb-C composite treatment |
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WANG Zhen-xia, HE Zhi-yong, WANG Wen-bo, WANG Ying-qin, TANG Bin
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Research Institute of Surface Engineering,Taiyuan University of Technology,Taiyuan 030024,China
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| Abstract: |
| To improve the wear resistance of titanium alloy,niobium gradient modified layer was prepared on surface of Ti6Al4V(TC4) by plasma surface alloying process firstly,then carburizing was conducted to form the Nb-C composite gradient modified layer.Micro-structure,ingredient distribution,phase structure and hardness distribution of the modified layer were analyzed.Pin-on-disc test was also carried out,and the results indicated that Nb and C elements were distributed by a gradient,the modified layer was mainly composed of Ti,TiC,Nb2C,NbC phases etc.Surface hardness of the modified layer Ti-Nb-C was up to 800 HK.Wear resistance was improved obviously after Nb-C surface composite treatment. |
| Key words: friction and wear performance Ti6Al4V(TC4) niobium alloying Nb-C composite treatment |
