时效温度对16NiCo钢微观组织与性能的影响

材料工程 ›› 1994, Vol. 0 ›› Issue (11) : 23.

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时效温度对16NiCo钢微观组织与性能的影响

钟平, 古宝珠

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The Influnces of Aging Temperatures on Microstructure and Mechnical Properties of 16NiCo Steel

Zhong Ping, Gu Baozhu

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摘要

研究了16NiCo钢在时效过程中的微观组织变化及其对力学性能的影响.结果表明,淬火钢于440℃出现二次硬化峰,主要是由M₂C在位错线上析出造成的.在420～440℃之间出现第一类回火脆性,于550℃出现第二类回火脆性.它具有可逆性,属于第二类回火脆性.

Abstract

The influence of aging process on microstructure and mechnical properties of 16NiCo steel have been studied.The results show that steel aged at 440℃ shows secondary-hardening peak.This is attributed to M₂C coherent precipitated at matrix dislocations.Aging at 420～440℃ tempered martensite embrittlement was observed.Temper embrittlement which occurs at 550℃ tempering is reversible.

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钟平, 古宝珠. 时效温度对16NiCo钢微观组织与性能的影响[J]. 材料工程, 1994, 0(11): 23

Zhong Ping, Gu Baozhu. The Influnces of Aging Temperatures on Microstructure and Mechnical Properties of 16NiCo Steel[J]. Journal of Materials Engineering, 1994, 0(11): 23