EFFECT OF PRECIPITATION ON CRYOGENIC TOUGHNESS IN ISOTHERMALLY AGED AUSTENITIC STAINLESS STEEL

被引：1
|
作者：
Saucedo-Munoz, M. L. [1 ]
Lopez-Hirata, V. M. [1 ]
Avila-Davila, E. O. [2 ]
Villegas-Cardenas, J. D. [3 ]
Gonzalez-Velazquez, J. L. [1 ]
机构：
[1] Inst Politecn Nacl ESIQUE, Apartado, Mexico
[2] Inst Tecnol Pachuca, Pachuca, Mexico
[3] Univ Politecn, Tultitlan Mariano Escobe, Mex, Mexico
来源：
METAL SCIENCE AND HEAT TREATMENT | 2017年 / 58卷 / 11-12期
关键词：
austenitic stainless steel; mechanical properties; aging; electron microscopy;
D O I：
10.1007/s11041-017-0082-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
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 600-900A degrees C with a hold of up to 1000 min. The KCV impact toughness at-196A degrees C is determined. It is shown that the impact toughness of the nitrogen-containing steel decreases under cooling after the aging at 700 and 800A degrees C more considerably than that of steel 316 after aging at 800 and 900A degrees C. The causes of the embrittlement of the nitrogen-containing steel are determined.
引用
收藏
页码：707 / 711
页数：5
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