Improvement of the microstructural features and mechanical properties of advanced high-strength steel DP590 welds

作     者：Arian Ghandi Morteza Shamanian Mohamad Reza Salmani Jalal Kangazian Arian Ghi;Morteza Shamanian;Mohamad Reza Salmani;Jalal Kangazian

作者机构：College of PardisMaterials Engineering SectionIsfahan University of TechnologyIsfahan 84156-83111Iran Department of Materials EngineeringIsfahan University of TechnologyIsfahan 84156-83111Iran Engineering&Quality of Auto Steel DivisionSAIPA GroupTehranIran 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2021年第28卷第6期

页      面：1022-1029页

核心收录：

学科分类：080503[工学-材料加工工程] 0709[理学-地质学] 0819[工学-矿业工程] 0806[工学-冶金工程] 08[工学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

主　　题：advanced high-strength steel resistance spot welding microstructure mechanical properties 

摘      要：The effects of the welding current mode in resistance spot welding on the microstructure and mechanical properties of advanced high-strength steel dual-phase 590(DP590)sheets were *** showed that a rough martensitic structure was formed in the weld zone of the sample welded via the single-pulsed mode,whereas the microstructure in the heat-affected zone consisted of a very rough martensitic microstructure and rough ***,using the secondary pulse mode led to the formation of tempered martensite in the weld *** maximum load and the energy absorption to failure of the samples with the secondary pulsed cycle were higher than those of the samples with the single-pulsed *** shear results indicated that the secondary pulsed mode could significantly change the mode of failure upon shear tension ***,the obtained results suggest that the use of secondary pulsed mode can improve the microstructural feature and mechanical properties of advanced high-strength steel DP590 welds.