焊管2012，Vol.35Issue(10)：67-72,6.
俄罗斯高强度管线钢焊接接头热影响区组织及性能研究
Study on Microstructure and Mechanical Property in Hot Affected Zone (HAZ) of Welded Joint of High Strength Pipeline Steel Produced in Russia
摘要
Abstract
The study on the austenite phase transformation in Hot Affected Zones (HAZ) of these pipeline steel grades such as X80, X90 and K70 based on making the model of thermodynamics and dynamics charts (TrsD,)by simulation of weld thermal cycle is carried out by Igelsk Steel Pipe Mill of Severstal together with Prometheus Central Research Institute for Structural Materials, Russia. The effect of the maximum reheating temperature and cooling rate on microstructure and mechanical property in HAZ is discussed and then the relationship between hardness and cooling rate is analyzed by taking the cold crack and softening trend of these mentioned pipeline steels as important indexes.关键词
管线钢/热力学和动力学图/相变/贝氏体/热影响区/模拟焊接热循环Key words
pipeline steel/thermodynamics and dynamics charts/phase transformation/bainite/HAZ/simulation of weld thermal cycle分类
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高真风,黄维..俄罗斯高强度管线钢焊接接头热影响区组织及性能研究[J].焊管,2012,35(10):67-72,6.
