Electron Microscopy of Stress-Induced Structural Alterations Near Inclusions in Bearing Steels
Electron Microscopy of Stress-Induced Structural Alterations Near Inclusions in Bearing Steels
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DOI：
10.1115/1.3645907
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发表时间：
1966-09
期刊：
影响因子：
--
通讯作者：
J. O'brien;A. King
中科院分区：
文献类型：
--
作者：
J. O'brien;A. King
通过透射电子显微镜研究了循环应力轴承钢中非金属夹杂物周围发生的白蚀结构变化。为了使用这种方法，已制备出边缘穿过蚀变部分的薄箔。已发现这种变化是由于铁氧体中形成了 0.05 至 0.1 微米的晶胞。除了变形钢的泡孔尺寸较小之外，泡孔的形成与疲劳铁中的泡孔形成类似。还有证据表明，变形会导致变形前钢回火时产生的碳化物破裂。
The white-etching structural alteration occurring around nonmetallic inclusions in cyclically stressed bearing steels has been studied by transmission-electron microscopy. In order to use this method, thin foils have been prepared with an edge running through the alteration. It has been found that the alteration is due to the formation of 0.05 to 0.1-micron cells in ferrite. The cell formation is similar to that seen in fatigued iron except for the small cell size of the deformed steel. Evidence is also given that deformation causes breakup of the carbides produced on the tempering of steel prior to deformation.