亚微米氮化钛膜的纳米压痕和划痕测定
Nanoindentation and nanoscratch measurements on sub-micron tin coatings
查看参考文献7篇
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文摘
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采用等离子电弧沉积的方法，分别在GT35和40CrNiMo钢上沉积厚约为0.5μm的氮化钛(TiN)膜。为了筛选基材，采用纳米压痕和划痕技术，评价膜基界面结合和固体润滑效果。纳米压痕结果，GT35，40CrNiMo和TiN的纳米硬度/弹性模量的典型值分别约为11.5 GPa/330GPa, 6.0 GPa/210GPa, 30GPa/450GPa。纳米划痕结果，GT35有较理想的膜基结合能力；GT35，40CrNiMo，TiN及其有机膜的磨擦系数分别约为0.25，0.45，0.15, 0.10。同40CrNiMo相比，GT35是较为理想的基体材料。纳米压痕和划痕技术能提供丰富的近表面的弹塑性变形、断裂和磨擦等的信息，是评价亚微米薄膜力学性能的有效手段。 |
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其他语种文摘
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Nanoindentation and nanoscratch studies were conducted on the TiN coatings with the thickness of 0.5μm on GT35 and 40CrNiMo steels synthesized by vacuum magnetic-filtering arc plasma deposition to evaluate the adhesion between TiN coatings and steel substrates and tribological properties. The nanoindentation studies showed that TiN/GT35 exhibited much greater load-carrying capacity compared to TiN/40CrNiMo. The hardness values measured for GT35, 40CrNiMo and TiN were approximately 11.5 GPa, 6.0 GPa and 30 GPa, respectively, and the elastic moduli approximately 330 GPa, 210 GPa and 450 GPa, respectively. Nanoscratch measurements also showed that T1N/GT35 exhibited much greater wear resistance compared to TiN/40CrNiMo.The friction coefficients of GT35, 40CrNiMo, TiN, organic coating were approximately 0.25, 0.45, 0.15, and 0.10 respectively. These studies demonstrated that the GT35, which were stronger and more abrasion resistant than 40CrNiMo, is the better substrate for TiN coating. Nanoindentation and nanoscratch tests can provide more information about the near-surface elastic-plastic deformation, friction and wear properties. |
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来源
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力学学报
,2003,35(4):498-502 【核心库】
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关键词
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纳米压痕
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纳米划痕
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氮化钛
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微力学性能
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磨擦性能
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地址
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1.
中国科学院力学研究所, 非线性力学因家重点实验室, 北京, 100080
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航天材料及工艺研究所, 北京, 100076
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0459-1879 |
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学科
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力学 |
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基金
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国家自然科学基金
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中国科学院知识创新工程重要方向项目
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文献收藏号
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CSCD:1167043
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