Effects of Constructed Ferrite Film on the Blocky Microstructure Formation and Impact Toughness of SA508-3 Steel

doi:10.1007/s11661-025-07733-4

IMR OpenIR

	Effects of Constructed Ferrite Film on the Blocky Microstructure Formation and Impact Toughness of SA508-3 Steel
	Jiang, Zhonghua; Wang, Pei; Li, Dianzhong
通讯作者	Jiang, Zhonghua(zhjiang12s@imr.ac.cn) ; Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2025-03-12
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	16
摘要	Due to the combined effects of coarse grains and quenching stress, SA508-3 steel heavy forgings appear abnormal blocky microstructure (Bc) composed of blocky ferrite and needle-shaped Mo2C or cementite particles, thus resulting in the poor impact toughness. Herein, the formation of Bc in SA508-3 steel was suppressed by partitioning undercooled austenite and reducing phase transformation stress during the subsequent phase transformation through the construction of a small amount of a dispersedly distributed ferrite film by intercritical heat treatment on the high-temperature side. The results of a thermomechanical coupling simulation indicated that the quenching and tempering (QT) samples subjected to intercritical heat treatment at 800 degrees C had a residual ferrite film content of 3.4 vol pct. The dispersedly distributed ferrite film effectively split the prior austenite grains and alleviated intragranular phase transformation stress, thereby inhibiting the formation of coarse Bc during quenching, and increasing the magnitude and stability of the impact toughness of SA508-3 steel without reducing its strength.
资助者	Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC)
DOI	10.1007/s11661-025-07733-4
收录类别	SCI
语种	英语
资助项目	Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC)[52101059] ; National Natural Science Foundation of China (NSFC)[52471053] ; National Natural Science Foundation of China (NSFC)[52321001]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001442987600001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179721
专题	中国科学院金属研究所
通讯作者	Jiang, Zhonghua; Wang, Pei; Li, Dianzhong
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Zhonghua,Wang, Pei,Li, Dianzhong. Effects of Constructed Ferrite Film on the Blocky Microstructure Formation and Impact Toughness of SA508-3 Steel[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2025:16.
APA	Jiang, Zhonghua,Wang, Pei,&Li, Dianzhong.(2025).Effects of Constructed Ferrite Film on the Blocky Microstructure Formation and Impact Toughness of SA508-3 Steel.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,16.
MLA	Jiang, Zhonghua,et al."Effects of Constructed Ferrite Film on the Blocky Microstructure Formation and Impact Toughness of SA508-3 Steel".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2025):16.