Mechanical properties and dry-sliding tribological behavior of partially twinned Fe70Ni30 alloy
Mechanical properties and dry-sliding tribological behavior of partially twinned Fe70Ni30 alloy
复制标题
部分孪晶Fe70Ni30合金的力学性能及干滑动摩擦学行为
作者：
研究了在-196 °c深冷处理（DCT）条件下获得的具有孪晶马氏体组织的Fe 70 Ni 30合金的力学性能和磨损行为，并与粗晶（CG）Fe 70 Ni 30合金（单一奥氏体相）进行了比较。结果表明，引入纳米孪晶马氏体后，Fe 70 Ni 30合金的维氏硬度由145提高到248 Hv。两种试样的摩擦系数基本相同，且随载荷的增大而减小，随滑动速度的增大而增大。XPS分析结果表明，磨损表面形成了氧化物保护膜，对摩擦系数起决定性作用。两种样品的磨损率随施加载荷的增加而增加，随滑动速度的增加而略有下降。DCT-Fe 70 Ni 30合金的耐磨性明显提高。通过SEM分析了其磨损机理。
The mechanical properties and wear behavior of an Fe70Ni30alloy with twinned martensite structure obtained by deep cryogenic treatment at −196°c (DCT) were evaluated in comparison with that of coarse-grained (CG) Fe70Ni30alloy (single austenite phase). The results showed that after the introduction of martensite with nano-scale twins, the Vickers hardness of Fe70Ni30increased from 145 to 248Hv. The friction coefficient of both samples was almost the same, and it decreased with increasing applied load and increased with increasing sliding speed. The XPS results indicated that oxide protecting film was formed on the worn surface, which may dominate the friction coefficient. The wear rate for both samples increased with increasing applied load and decreased slightly with increasing sliding speed. The wear resistance of DCT-Fe70Ni30alloy was obviously enhanced. The wear mechanisms were investigated by SEM accordingly.
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影响因子：
5
作者：
通讯作者：
--
DOI：
10.1016/0025-5416(87)90513-1
发表时间：
1987-11
期刊：
Materials Science and Engineering
影响因子：
--
作者：
J. Guimarães
通讯作者：
J. Guimarães
影响因子：
9.4
作者：
Lu, Lei;Zhu, Ting;Suresh, Subra
通讯作者：
Suresh, Subra
影响因子：
6
作者：
A. Shibata;S. Morito;T. Furuhara;T. Maki
通讯作者：
A. Shibata;S. Morito;T. Furuhara;T. Maki
面心立方金属中非螺旋晶格位错与相格孪晶边界之间的相互作用
影响因子：
9.4
作者：
Jin, Z. -H.;Gumbsch, P.;Hahn, H.
通讯作者：
Hahn, H.