Effect of Ageing at 700 "c on Microstructure and Mechanical（SCI论文）
- Release time:2024-08-09
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Affiliation of Author(s):
冶金工程学院
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Journal:
JOURNAL OF IRON AND STEEL RESEARCH, INTERNATIONAL
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Key Words:
中文关键字：时效；微观组织；机械性能；析出相，英文关键字：ageing; microstructure; mechanical property; preci
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Abstract:
To investigate the effect of high temperature aging on the microstructure and mechanical properties of S31042 steel, solid solution treatment at 700℃ was carried out for various times from 10h to 6000h. Experimental results showed that the change of mechanical properties is closely related to the amount of precipitated phases. During aging from 10h to 300h, precipitation in the test steel increases rapidly, and correspondingly, the high temperature yield strength and room temperature hardness of test steel increase rapidly. Meanwhile, the thickness of the second phase on grain boundaries widens sharply and the room temperature Charpy impact absorb energy decreases. Beyond 300h aging, the precipitation in the steel increases gradually and its size coarsening to a certain extent. The high temperature yield strength of the steel keeps stable, and the room temperature Charpy impact energy and hardness decrease slowly. Beyond 3000h aging, the mechanical properties of the steel tend to be stable. The main precipitations are M23C6, NbCrN and NbC in test steel.
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Note:
SCI
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Co-author:
刘正东,包汉生,程世长
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First Author:
wangbin,wangjingzhong
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Indexed by:
Journal paper
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Volume:
卷：20
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Issue:
期：4
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Page Number:
页：54-58
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Translation or Not:
no
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Date of Publication:
2013-04-01
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