m50 steel
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2022 ◽  
pp. 110378
Author(s):  
Jiawei Yao ◽  
Fuyao Yan ◽  
Hongtao Chen ◽  
Baofeng Chen ◽  
Mufu Yan ◽  
...  


2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Xiangyu Xie ◽  
Chao Chen ◽  
Jun Luo ◽  
Jin Xu

Nitrogen ion implantation has shown its role in enhancing steel surface properties. In this work, AISI M50 steel was implanted with nitrogen ions by using the metal vapor vacuum arc technique with a dose of 2 × 1017 cm−2, and corresponding implanted energies were at 60 keV, 80 keV, and 100 keV, respectively. The distribution of implanted nitrogen ions was calculated, and the samples were tribologically tested and examined. As shown by the results, the microhardness in implanted samples was 1.17 times greater relative to that of the unimplanted sample. The implantation of the nitrogen ion leads to a change in the friction coefficient of the AISI M50 steel. Adhesive wear mechanism occurs in the unimplanted sample, and adhesion resistance tends to increase when nitrogen-implanted energy increases. The formation of oxides α-Fe2O3 and Fe3O4 further enhanced the tribological properties for implanted samples.







2021 ◽  
Vol 409 ◽  
pp. 126910
Author(s):  
Jiawei Yao ◽  
Fuyao Yan ◽  
Baofeng Chen ◽  
Ying Yang ◽  
Yueming Xu ◽  
...  


2020 ◽  
Vol 150 ◽  
pp. 106384
Author(s):  
Che Wang ◽  
Chuanwei Zhang ◽  
Le Gu ◽  
Minglong Bi ◽  
Pingping Hou ◽  
...  


Materials ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 2934
Author(s):  
Xiyao Liu ◽  
Zhiwei Lu ◽  
Hao Dong ◽  
Yan Cao ◽  
Xueming Qian

Improving the tribological performance of M50 steel under the conditions of wide load range is of great significance. In this study, the interfacial structure of surface micropores filled with Sn–Ag–Cu or Sn–Ag–Cu/whisker carbon nanotubes (whiskerCNT) of M50 material was prepared by laser additive manufacturing and high-temperature infiltration. From 2 to 22 N, the lubrication characteristics of Sn–Ag–Cu and whiskerCNT in surface micropores of M50 was investigated. Results indicate that Sn–Ag–Cu can precipitate to the worn surface and form a lubricating layer, which has a good lubricating effect. Moreover, the flow behavior of Sn–Ag–Cu on a worn surface can play the role of crack healing. At higher load, the strength of the lubricating film is enhanced by whiskerCNT, which renders the lubricating film not vulnerable to premature rupture.







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