喷丸处理对EN 31合金钢滚动接触疲劳性能的影响

Q3 Engineering

Tribologia: Finnish Journal of Tribology Pub Date : 2023-07-18 DOI:10.30678/fjt.125884

Ranju M R, Kesavan D

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引用次数: 0

摘要

本文旨在研究喷丸处理对EN 31钢在纯轧制条件下滚动接触疲劳（RCF）寿命的影响。试验是在润滑接触条件下使用双圆盘气缸试验台进行的。采用有限元分析（FEA）方法，利用弹性模型计算了静载荷条件下变形区的正交应力分布和深度。喷丸处理使表面硬度提高了20%，并产生了残余应力，使寿命提高了2倍。从次表面开始的裂纹起源深度与有限元模型获得的最大剪切区深度非常一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of Shot Peening Process on Rolling Contact Fatigue Performance of EN 31 Alloy Steel

This paper aims to study the effect of shot peening on the Rolling Contact Fatigue (RCF) life of EN 31 Steel subjected to a pure rolling condition. Tests were carried out under lubricated contact conditions using a two-disc on-cylinder test rig. The orthogonal stress distributions and depth of deformation zones under static loading conditions were calculated using an elastic model by Finite Element Analysis (FEA) method. Shot peening increased the surface hardness by 20 % and imparted residual stress, which resulted in a 2-fold improvement of life. The depth of origin of the crack from the sub-surface was found to be in good agreement with the depth of maximum shear region obtained from the finite element model.

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来源期刊

Tribologia: Finnish Journal of Tribology Materials Science-Surfaces, Coatings and Films

CiteScore

2.20

自引率

0.00%

发文量