The effect of carbon content on fatigue strength of dual-phase steels

被引：35
|
作者：
Tayanc, M.
Aytac, A.
Bayram, A. [1 ]
机构：
[1] Uludag Univ, Fac Engn & Architecture, TR-16059 Bursa, Turkey
[2] Balikesir Univ, Fac Engn & Architecture, TR-10145 Balikesir, Turkey
[3] Vocat Sch Higher Educ, Land Forces NCO, Balikesir, Turkey
来源：
MATERIALS & DESIGN | 2007年 / 28卷 / 06期
关键词：
ferrous metals and alloys-A; heat treatment-C; fatigue-E; microstructure-F;
D O I：
10.1016/j.matdes.2006.04.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Steels which contain 0.085 C, 0.36 C, and 0.38 C were intercritically annealed at 745, 760, 775, and 790 degrees C for 30 min followed by water quenching to obtain dual-phase (martensite-plus-ferrite) structure. It was found that the volume fraction of martensite increased with increasing annealing temperature. Rotating bending tests (10 million cycles) were conducted on the as-received materials and the dual-phase steels specimens selecting completely reversed cycle of stress. It was seen that the fatigue strength of dual-phase steels increased when compared with as-received materials. The highest fatigue strength was observed in the intercritically annealed steels at 760 degrees C. The fatigue strength of these steels increased at the annealing temperature up to 760 degrees C and decreased at the annealing temperatures higher than 760 degrees C. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1827 / 1835
页数：9
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