On the commensuration of plastic plowing at the microscale

On the commensuration of plastic plowing at the microscale
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论微观尺度塑耕的可比性

DOI:
10.1016/j.triboint.2020.106477
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发表时间:
2020
影响因子:
6.2
通讯作者:
Brinckmann
Brinckmann
中科院分区:
工程技术1区
文献类型:
--
作者:
Tsybenko;Brinckmann

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提高磨损性能需要了解磨损初始阶段的机理。本文关注的是从静态压痕到动态磨损的过渡,即从静止接触到滑动接触的演变。通过对铜、渗碳体和奥氏体钢的单微米级粗糙度峰分析,我们发现接触面积守恒、弹性恢复和前缘堆积发育是主要机制。弹性恢复导致在粗糙体的背面有一个额外的接触面积。晶体取向的影响在磨损深度的初始阶段可以忽略不计,但在后期阶段则很重要。此外,仅在韧性材料中观察到部分磨损深度恢复。
Improving the wear properties requires an understanding of the mechanisms during the initial stages of wear. This paper focuses on the transition from static indentation to dynamic wear, i.e. the evolution from stationary to sliding contact. By using single micrometer-sized roughness peaks on copper, cementite and austenitic steel, we observe that the conservation of contact area, elastic recovery, and the front pile-up development are the dominant mechanisms. The elastic recovery leads to an additional contact area at the backside of the asperity. The influence of the crystallographic orientation was found to be negligible during the initial increase in wear depth but significant during the later stages. Moreover, the partial wear depth recovery is observed only in ductile materials.
磨削和磨粒磨损
DOI: --
发表时间: 1970
期刊:
影响因子: --
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T. Buttery;J. Archard
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