期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：3
页码：032005
DOI：10.1088/1755-1315/199/3/032005
语种：English
出版社：IOP Publishing
摘要：The article describes the effect of simulated post weld heat treatment (PWHT) on the properties and microstructure of high performance pressure vessel steel plate A516 Gr.70. The research indicates that the strength decreased sharply and the toughness is decreased slightly with increasing simulated PWHT times. And the strength of plate with high carbon content decrease more than which with low carbon content. The main reason of strength decrease is the ferrite degenerated after simulated PWHT. However, the strength can still satisfy the standard requirement with the reasonable composition design.
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