Embrittlement characteristics of fracture toughness in ductile iron by contact with water

被引：9

作者：

Komatsu, S

Zhou, CQ

Shibutani, S

Tanaka, Y

机构：

[1] Kinki Univ, Fac Engn, Higashihiroshima 7392116, Japan

[2] Muroran Inst Technol, Muroran, Hokkaido 0508585, Japan

[3] Koshuha Foundry Co Ltd, Hachinohe 0310071, Japan

来源：

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH | 1999年 / 11卷 / 06期

关键词：

fracture toughness; fracture; water; embrittlement; microstructure; heat treatment; mechanical properties; environment; austempered ductile iron; ductile iron;

D O I：

10.1080/13640461.1999.11819330

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Several ductile Iron samples with various kinds of matrix were subjected to fracture toughness testing in a condition that specimens were in contact with water at the time of testing. A considerable reduction in fracture toughness caused by contact with water was found in the case of the samples with an austempered matrix or a quenched-&-tempered matrix. However this embrittlement behavior was hardly noticeable in the case of the samples with a fully ferritic matrix or a mostly ferritic matrix. This embrittlement behavior is considered to be induced by hydrogen embrittlement.

引用

页码：539 / 544

页数：6