摘要
对某一设计成分的C-Mn容器钢进行了微量B处理。研究了轧制工艺对微B处理C-Mn容器钢板强韧性的影响。观察了不同轧制工艺下正火态和模拟焊后热处理态微B处理C-Mn容器钢板的显微组织。结果表明：C-Mn容器钢经微量B处理,可提高钢的淬透性,促进贝氏体相变。控制轧制可细化微B处理C-Mn容器钢的晶粒,在提高其强度的同时又不损害韧性。微B处理可作为抗高温PWHT正火态C-Mn钢容器板开发的一种途径。
Micro-B treatment was carried out on a selected C-Mn steel designed for pressure vessels. The influences of rolling process on strength and toughness of C-Mn steel plates for pressure vessels were studied. The microstructures of micro-B treated C-Mn steel plate in normalized and simulated post-weld heat treatment（SPWHT） performed by different rolling processes were observed. The results indicate that with C-Mn steel plates for pressure vessels treated by micro-B, the hardenability of the steel improves, which can promote bainite transformation. Controlling rolling process can refine the grain size of micro-B treated C-Mn pressure vessels steel, and improve the strength, but the toughness is not deteriorated. Micro-B treatment can act as a method for developing anti-high temperature PWHT normalized C-Mn steel designed for pressure vessel plate.
出处
《热加工工艺》
CSCD
北大核心
2018年第2期111-113,共3页
Hot Working Technology
关键词
模拟焊后热处理
C-MN钢
微B处理
simulated post-weld heat treatment
C-Mn steel
micro-B treatment
