Nitrogen-Substituting Carbon Significantly Improves Softening Resistance of H13 Hot-Work Die Steel

doi:10.1007/s11661-024-07367-y

IMR OpenIR

	Nitrogen-Substituting Carbon Significantly Improves Softening Resistance of H13 Hot-Work Die Steel
	Wang, Hai-Jian 1; Feng, Hao 1,2; Li, Hua-Bing 1,2; Zhou, Gang 3; Zhu, Hong-Chun 1,4; Zhang, Shu-Cai 1; Jiang, Zhou-Hua 1,2
通讯作者	Feng, Hao(fenghao@smm.neu.edu.cn) ; Zhou, Gang(gzhou@imr.ac.cn)
	2024-03-21
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	16
摘要	In this study, the thermal stability of H13 hot-work tool steel was significantly improved through the use of nitrogen as a substitute for carbon. The results indicated that the 0.3C-0.2N and 0.2C-0.3N steels exhibited better hardness stability than H13 steel (0.4C-0N). In particular, the 0.2C-0.3N steel exhibited substantially improved hardness stability. The softening resistance mechanism was revealed from the perspectives of precipitates, dislocations, laths, and variants through first-principles calculations, thermodynamic and kinetic models, and variant reconstruction. First, for precipitate stability, the results of first-principles calculations and kinetic analysis showed that substituting N with C reduced the formation energy of carbides and facilitated the formation of carbonitrides. For 0.2C-0.3N steel, which had the highest activation energy, both the diffusion of alloying elements and the coarsening of carbonitrides were significantly inhibited. Second, in terms of dislocation evolution, the most stable lattice constant, highest interstitial atom content and lowest carbide precipitation content were the keys to inhibiting dislocation recovery. Finally, the dislocation and heat-induced boundary migration stimulated the selection of variants, resulting in the coarsening and coalescence of laths. The change from V17 to V1 variant pairs was dominant for the lath coalescence of 0.2C-0.3N steel.
资助者	National Natural Science Foundation of China ; Science Fund for Distinguished Young Scholars of Liaoning Province ; Program of Introducing Talents of Discipline to Universities
DOI	10.1007/s11661-024-07367-y
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52374331] ; National Natural Science Foundation of China[52325406] ; National Natural Science Foundation of China[U1960203] ; Science Fund for Distinguished Young Scholars of Liaoning Province[2023JH6/100500008] ; Program of Introducing Talents of Discipline to Universities[B21001]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001190083700001
出版者	SPRINGER
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/185351
专题	中国科学院金属研究所
通讯作者	Feng, Hao; Zhou, Gang
作者单位	1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 2.Northeastern Univ, Key Lab Ecol Met Multimet Ores, Minist Educ, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Northeastern Univ, Inst Frontier Technol Low Carbon Steelmaking, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hai-Jian,Feng, Hao,Li, Hua-Bing,et al. Nitrogen-Substituting Carbon Significantly Improves Softening Resistance of H13 Hot-Work Die Steel[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:16.
APA	Wang, Hai-Jian.,Feng, Hao.,Li, Hua-Bing.,Zhou, Gang.,Zhu, Hong-Chun.,...&Jiang, Zhou-Hua.(2024).Nitrogen-Substituting Carbon Significantly Improves Softening Resistance of H13 Hot-Work Die Steel.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,16.
MLA	Wang, Hai-Jian,et al."Nitrogen-Substituting Carbon Significantly Improves Softening Resistance of H13 Hot-Work Die Steel".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):16.