DIFFERENCES IN MECHANICAL PROPERTIES BETWEEN Cr-Mo STEEL CASTINGS AND FORGINGS.

被引：0

作者：

Nakajima, Hirooki

Kurabe, Hyojiro

Crouzatier, Thierry

机构：

来源：

Transactions of National Research Institute for Metals (Tokyo) | 1977年 / 19卷 / 01期

关键词：

FORGINGS - Testing - IRON AND STEEL METALLOGRAPHY - Grain Size and Shape - STEEL - Forging;

D O I：

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学科分类号：

摘要：

This study attempts to explain the difference in the results of mechanical tests on Cr-Mo steel casting and its forged state. Tensile strength, yield strength, uniform elongation and impact transition temperature are about the same in steel casting and its forged state. Elongation at fracture, reduction of area and impact value of longitudinal section of the forged specimens are better than those of the steel casting. To explain these differences, four factors are investigated: grain size, segregation, microporosity and directionality of structure.

引用

页码：26 / 31