Friction and Wear Properties of NiAl-7.5Cr-2.5Ta-5Co Alloy at Room Temperature
Wang Zhensheng1; Zhang Meng'en1; Yang Shuangshuang1; Guo Jianting2; Zhou Lanzhang2; Guo Yuanjun1; Chen Zhigang1; Peng Zhen1
Corresponding AuthorWang Zhensheng(
AbstractThe wear properties and mechanism of NiAl-7.5Cr-2.5Ta-5Co alloy were investigated in different conditions of contact deformation and friction thermal effects. Results show that under the 10 N loading condition, the NiAl-7.5Cr-2.5Ta-5Co alloy is at resilient contact state, and it can offer lower friction coefficient as a result of its tiny motion caused by the elastic stress relaxation of deformation areas which damages the metal bonding. Under the 45 similar to 115 N loading condition, the friction coefficient of the alloy increases resulting in its significant adhesion shear phenomenon brought about by the formation of metal nodes between NiAl-2.5Ta-7.5Cr-5Co and Si3N4 during the process of friction and wear. With the increase of P-m.V, the friction coefficient gradually decreases with more oxide layers of nickel and cobalt generated by itself on friction surface, which partially eliminate the contact of alloy and Si3N4. The cobalt element improves the strength and hardness of NiAl-7.5Cr-2.5Ta alloy, and also plays an important role in reducing the friction coefficient of NiAl based alloy.
Keywordintermetallic NiAl-7.5Cr-2.5Ta-5Co alloy friction and wear properties wear mechanism oxide film
Indexed BySCI
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000362305600017
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Document Type期刊论文
Corresponding AuthorWang Zhensheng
Affiliation1.Hunan Univ Sci & Technol, Minist Educ, Engn Res Ctr Adv Min Equipment, Xiangtan 411201, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Wang Zhensheng,Zhang Meng'en,Yang Shuangshuang,et al. Friction and Wear Properties of NiAl-7.5Cr-2.5Ta-5Co Alloy at Room Temperature[J]. RARE METAL MATERIALS AND ENGINEERING,2015,44(8):1909-1914.
APA Wang Zhensheng.,Zhang Meng'en.,Yang Shuangshuang.,Guo Jianting.,Zhou Lanzhang.,...&Peng Zhen.(2015).Friction and Wear Properties of NiAl-7.5Cr-2.5Ta-5Co Alloy at Room Temperature.RARE METAL MATERIALS AND ENGINEERING,44(8),1909-1914.
MLA Wang Zhensheng,et al."Friction and Wear Properties of NiAl-7.5Cr-2.5Ta-5Co Alloy at Room Temperature".RARE METAL MATERIALS AND ENGINEERING 44.8(2015):1909-1914.
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