Effect of Precipitation on Cryogenic Toughness in Isothermally Aged Austenitic Stainless Steel

被引：0

作者：

M. L. Saucedo-Muñoz

V. M. Lopez-Hirata

E. O. Avila-Davila

J. D. Villegas-Cardenas

J. L. Gonzalez-Velazquez

机构：

[1] Instituto Politecnico Nacional (ESIQUE),

[2] Instituto Tecnologico de Pachuca,undefined

[3] Universidad Politecnica,undefined

来源：

Metal Science and Heat Treatment | 2017年 / 58卷

关键词：

austenitic stainless steel; mechanical properties; aging; electron microscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of grain-boundary precipitates on cryogenic impact toughness of two corrosion steels (standard AISI 316 and a steel with a nitrogen additive) is studied. The steels are aged at 600 – 900°C with a hold of up to 1000 min. The KCV impact toughness at –196°C is determined. It is shown that the impact toughness of the nitrogen-containing steel decreases under cooling after the aging at 700 and 800°C more considerably than that of steel 316 after aging at 800 and 900°C. The causes of the embrittlement of the nitrogen-containing steel are determined.

引用

页码：707 / 711

页数：4

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