Effect of matrix toughness and grain morphology on fracture of steels

被引：0
作者：
Ş. H. Atapek
S. Gümüş
Ş. Polat
机构：
[1] Kocaeli University,
[2] Department of Metallurgical and Materials Engineering,undefined
来源：
Metal Science and Heat Treatment | 2013年 / 54卷
关键词：
heat treatment; toughness; secondary phases; grain morphology; fracture;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The microstructure and fracture surfaces of steel X42 (type 09G2S) and of an experimental bainitic steel (0.23% C, 0.18% Mn, 0.04% Ni, 2.35% Co, 1.40% Cr, 0.50% Mo, 0.08% Nb, 0.08%V, 0.02% Ti) are studied after quenching and tempering. The influence of the toughness of the matrix on the fracture behavior of the steels is determined. It is shown that the fracture toughness changes depending on the tempering temperature, and the nucleation and propagation of cracks depends on the presence of secondary phases and on the morphology of the grain structure.
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页码：648 / 653
页数：5
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