Impact toughness of nitrided steels

被引：0
|
作者：
Solodkin, G.A. [1 ]
Tsyrlin, E.S. [1 ]
Ratgaut, L.Ya. [1 ]
机构：
[1] ENIMS, Moscow, Russia
来源：
Metallovedenie i Termicheskaya Obrabotka Metallov | 1991年 / 01期
关键词：
Steel Heat Treatment - Quenching - Steel Testing - Impact;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of nitriding processes and preliminary heat treatment (quenching + tempering; normalization and high temper) on the impact toughness of structural steels was tested. Charpy specimens were nitrided at 500 - 520°C, 48 - 60 hours in a gaseous media or 6 - 15 hours at ion - nitriding. Nitriding decrease the impact toughness after all heat treatments and in the greatest degree in low alloyed normalized steels. In order to obtain high strength components that can be impact loaded it is necessary to use high alloyed steels quenched and tempered before nitriding. Obtained correlations between the nitriding parameters and the impact toughness were identical after gaseous and ion - nitriding. Conditions of heat treatment must exclude temper embrittlement.
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页码：12 / 14
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