Microstructure, mechanical properties and reciprocating wear properties of diamond grits-reinforced NiCrBSi composite coatings on 42CrMo

Zheng, Xin; Zheng, Ke; Chang, Jiannan; Qu, Shuaiwu; Jia, Wenru; Li, Zhibo; Yu, Shengwang; Gao, Jie; Ma, Yong

doi:10.1016/j.surfcoat.2022.128703

Cited by 12 publications

(2 citation statements)

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“…The nitrided layer has important research and application value for improving impact resistance and wear resistance under the heavy load of ion nitrided parts. Zheng et al [148] used 42CrMo steel as the material to explore the effect of adding a small amount of B on the nitriding efficiency and the structure of the nitrided layer. The research results show that the addition of trace B can significantly improve the nitriding efficiency.…”

Section: Effect Of Surface-active Catalytic On Nitriding Behaviormentioning

confidence: 99%

“…In the 1950s, the American Carpenter Company applied rareearth elements to the treatment of stainless steel, and American steel foundries applied rare-earth elements to the surface treatment of metals. At the same time, researchers represented by Wei and Liu [149] introduced rare earths into the field of chemical heat treatment for the first time and made a major breakthrough in the rare-earth infiltration of Zheng et al [148] used 42CrMo steel as the material to explore the effect of adding a small amount of B on the nitriding efficiency and the structure of the nitrided layer. The research results show that the addition of trace B can significantly improve the nitriding efficiency.…”

Section: Effect Of Rare-earth Elements (Re) On Nitriding Behaviormentioning

confidence: 99%

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A Review—Effect of Accelerating Methods on Gas Nitriding: Accelerating Mechanism, Nitriding Behavior, and Techno-Economic Analysis

Zhou,

Xia,

Xie

et al. 2023

Coatings

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Gas nitriding, as a surface modification technology to improve the wear resistance of workpiece surfaces, is widely used in wind turbine gears, pressure vessel gears, high-precision die casting abrasives, and other areas. However, the gas nitriding time is too long, reaching 40–60 h, which reduces the efficiency of nitriding and hinders the development of gas nitriding. Therefore, various accelerating methods are born accordingly. This review first introduces the basic principle, microstructure, and process parameters of conventional gas nitriding. Then, five common accelerating methods are summarized: process parameter optimization, surface mechanical nano-crystallization, surface-active catalysis, surface pre-oxidation, and surface laser treatment. Then, the effect of acceleration methods on gas nitriding is analyzed for the acceleration mechanism, nitriding behavior, and nitriding efficiency. Finally, the technical economy of the acceleration methods is compared for three aspects: energy consumption, carbon dioxide emission, and cost. And, the technical maturity of the acceleration methods is compared according to technology readiness level (TRL) technology. Based on the above content, the advantages and disadvantages of the five accelerating methods are reviewed, and the concept of a multi-technology collaborative processing acceleration method is proposed.

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Section: Effect Of Surface-active Catalytic On Nitriding Behaviormentioning

confidence: 99%

Section: Effect Of Rare-earth Elements (Re) On Nitriding Behaviormentioning

confidence: 99%