Microstructural effect on tensile and fatigue behaviour of C-Mn steel

被引：12

作者：

Hussain, K ^{[1
]}

DelosRios, RR ^{[1
]}

机构：

[1] UNIV SHEFFIELD, DEPT MECH & PROC ENGN, SHEFFIELD S1 4DU, S YORKSHIRE, ENGLAND

来源：

JOURNAL OF MATERIALS SCIENCE | 1997年 / 32卷 / 13期

关键词：

D O I：

10.1023/A:1018661809487

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stress-strain behaviour in tension and in torsion was studied in ferrite-pearlite and ferrite-bainite microstructures of C-Mn steel. The fatigue tests were performed under reverse torsional loading on hour-glass shape specimens. The cyclic plasticity in torsion was found at about 37% of the monotonic yield stress in both ferrite-pearlite and ferrite-bainite microstructures. The ferrite phase in the direction of maximum shear stress was the preferable site for crack nucleation. The ferrite-bainite microstructure showed better fatigue properties than the ferrite-pearlite microstructure.

引用

页码：3565 / 3569

页数：5

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