石油化工高等学校学报2012，Vol.25Issue(3)：64-66,3.DOI:10.3969/j.issn.1006-396X.2012.03.014
二次热循环对2.25Cr1Mo钢组织的影响
Effect of Dual Thermal Cycle on Microstructure of 2.25Cr1Mo Steel
摘要
Abstract
Through SEM observation, EDS analyses, the effect of dual thermal cycle on microstructure of 2. 25CrlMo steel was analyzed. The results show that dual thermal cycle results in the formation of bainite. However, grain boundary of coarse prior austenite resulted from first thermal cycle does not become finer and still appears to maintain the original forms of it even though subjected second thermal cycle. EDS analyses indicate that micro zone composition are uniformly distributed which means that austernitizing homogenization is completed more sufficiently after subjected second thermal cycle. Micro zone Cr content of granular structure increases compared with matrix. It is assumed that carbides mainly composed of Fe, Cr element are formed among granular structure.关键词
2.25Cr1Mo钢/热循环/组织/峰值温度/晶粒尺寸Key words
2. 25CrlMo steel/ Thermal Cycle/ Microstructure/ Peak Temperature/ Grain Size Corresponding author.分类
能源科技引用本文复制引用
胡传顺,秦华,马喜龙,朱健..二次热循环对2.25Cr1Mo钢组织的影响[J].石油化工高等学校学报,2012,25(3):64-66,3.基金项目
辽宁省教育厅科学技术研究项目(LS2010098) （LS2010098）
