Effect of the Inclined Edge Notches on the Fatigue-Fracture Behavior of Soft Annealed and Quenched AISI O2 Tool Steel

被引：0
|
作者：
Ömer Faruk Erkendirci
机构：
[1] Gaziantep University,
[2] Gaziantep Technical College,undefined
来源：
Transactions of the Indian Institute of Metals | 2012年 / 65卷
关键词：
Fatigue-fracture behavior; Edge notches; Tool steel; Heat treatment; Kink;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this research, the effects of edge notches with inclined angles on the fatigue-fracture behavior and fatigue life between soft annealed and hardened AISI O2 tool steel (DIN 1.2842) were investigated. Hardening was provided by the quenching and cooling by oil. A rotating bending fatigue machine was used to determine the fatigue strength. It was found that edge notches caused a reduction in the fatigue strength and fatigue life for soft annealed AISI O2 steel, but this reduction transformed to an increase for quenched AISI O2 steel. In addition to this, kink occurred on the all inclined edge notches for both materials. After fatigue tests, the fracture surfaces, specimen surface microstructures and specimen center microstructures were observed by scanning electron microscopy.
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页码：399 / 404
页数：5
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