Microstructure of simulated coarsegrain heat affected zone (CGHAZ) of Zr Microalloyed HSLA Steel are investigated using optical microscopy and transmission electron microscopy.
采用光学显微镜和透射电镜研究了锆处理对微合金钢粗晶热影响区组织的影响。
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Owing to heat action during X80 pipeline steel welding the organization and performance of heat affected zone will change considerably in particular of coarsegrain heat affected zone (CGHAZ).