Abstract:Using trial manufactured X80 pipeline steel plate with high Nb content by TMCP (thermo-mechanical control process), the heat treatment experiments under different temperature were conducted in the laboratory, and the influence rules of heating temperature on microstructure and mechanical properties were studied. The results show that in the heating temperature range from 150℃ to 600℃, the steel plate microstructure, the tensile and DWTT (drop weight tear test) performance changes not obviously, while ductile-brittle transition temperature slightly rise. After 650℃ heat treatment, the coarse microstructure was observed, and the mechanical properties was characterized by DBTT (ductile to brittle transition temperature) rising and DWTT performance dropping.
收稿日期: 2011-11-10
出版日期: 2013-02-06
引用本文:
章传国,郑磊. 轧后加热温度对高Nb X80管线钢板组织性能的影响[J]. 钢铁, 2013, 48(1): 82-86.
ZHANG Chuan-guo,ZHENG Lei. Effect of Heating Temperature After TMCP on Microstructure and Mechanical Properties for X80 Steel Plate With High Nb Content. Iron and Steel, 2013, 48(1): 82-86.
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