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Influence of Intercritical Quenching Temperature on Microstructure, Mechanical Properties and Corrosion Resistance of Dual-Phase Steel
Hao, Xuehui; Zhao, Xingchuan; Huang, Baoxu; Chen, Hui; Ma, Jie; Wang, Changzheng; Yang, Yuansheng
2020-07-01
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume29Issue:7Pages:4446-4456
AbstractThis work investigated the microstructure, mechanical properties and corrosion behavior of dual-phase (DP) steel after different intercritical quenching treatment and compared the results with commercial AH32 steel. The results indicate that the microstructure of all tested DP steels was composed of lath martensite and polygonal ferrite. As the temperature increased from 750 to 850 degrees C, the martensite lath became slender, whereas martensite volume fraction (V-m) increased from 53 to 71%. The change in the morphology and content of martensite not only led to an increase in hardness and yield strength, but also to a decrease in the plasticity and impact toughness, which was consistent with the mixture law. However, the ultimate tensile strength did not increase but declined, which was an unusual behavior. It was related to the micro-void coalescence fracture mechanism caused by the ferrite/martensite interface decohesion. Moreover, the increasing temperature led to the enhanced galvanic effect between ferrite and martensite, accelerating the corrosion rate of DP steels in a 3.5% NaCl solution. A comparison of all results in our work indicates that DP750 steel with 53% martensite had excellent comprehensive properties.
DOI10.1007/s11665-020-04928-1
WOS IDWOS:000545277100001
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155689
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Hao, Xuehui,Zhao, Xingchuan,Huang, Baoxu,et al. Influence of Intercritical Quenching Temperature on Microstructure, Mechanical Properties and Corrosion Resistance of Dual-Phase Steel[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2020,29(7):4446-4456.
APA Hao, Xuehui.,Zhao, Xingchuan.,Huang, Baoxu.,Chen, Hui.,Ma, Jie.,...&Yang, Yuansheng.(2020).Influence of Intercritical Quenching Temperature on Microstructure, Mechanical Properties and Corrosion Resistance of Dual-Phase Steel.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,29(7),4446-4456.
MLA Hao, Xuehui,et al."Influence of Intercritical Quenching Temperature on Microstructure, Mechanical Properties and Corrosion Resistance of Dual-Phase Steel".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 29.7(2020):4446-4456.
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