FACTORS AFFECTING FATIGUE STRENGTH OF HOT-ROLLED STEEL SHEETS

被引：0

作者：

Ogawa, Kazuyoshi ^{[1
]}

Saruki, Katsushi ^{[1
]}

Asano, Takashi ^{[1
]}

Suzuki, Ken-ichi ^{[1
]}

机构：

[1] Toyoto Central Research &, Development Lab Inc, Aichi, Jpn, Toyoto Central Research & Development Lab Inc, Aichi, Jpn

来源：

Zairyo/Journal of the Society of Materials Science, Japan | 1985年 / 34卷 / 385期

关键词：

ENVIRONMENTAL TESTING - STEEL - Corrosion - STEEL TESTING - Fatigue;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to investigate the corrosion effect on the fatigue strength of steel sheets used in automobile suspension members, plane bending fatigue tests were carried out. The materials used were 0. 075% C and 0. 15% C hot-rolled steel sheets. One group of specimens were intermittently dipped in 5% salt-water at room temperature and another group continuously in 20% HCl aqueous solution at 50 degree C. The fatigue strength of the corroded specimens was correlated with the feature of the corroded surfaces. The main factors affecting the degradation of fatigue strength due to corrosion were the reduction of the sectional area and the increase of surface roughness. In addition, an equation is proposed for estimation of the bending fatigue strength sigma //w//a//p of the specimens after the corrosion products were removed.

引用

页码：1211 / 1216

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