The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?

doi:10.1002/adem.201801116

CORC > 金属研究所 > 中国科学院金属研究所

	The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?
	Li, He-Fei 1,2; Duan, Qi-Qiang 1; Zhang, Peng 1; Zhang, Zhe-Feng 1,2
刊名	ADVANCED ENGINEERING MATERIALS
	2019-04-01
卷号	21 期号:4 页码:6
关键词	crack initiation and growth fracture toughness impact toughness strength-toughness relationship tempered martensite embrittlement
ISSN号	1438-1656
DOI	10.1002/adem.201801116
通讯作者	Zhang, Peng(pengzhang@imr.ac.cn) ; Zhang, Zhe-Feng(zhfzhang@imr.ac.cn)
英文摘要	Two different types of strength-toughness relations are investigated in tempered steel (tempered at 25-420 degrees C). It is found that there is a trade-off relation between strength-fracture toughness and becomes invariable relation between strength-impact toughness. The effect of microstructure on the materials toughness is related to the manner of energy consumption, which should be attributed to the notch root radius of the specimen. The coarse carbides and dislocation density inside the martensite lath have distinct effects on the energy for crack initiation (impact toughness) and crack growth (fracture toughness). Additionally, the mechanism of coarse carbides on the tempered martensite embrittlement is elaborated deeply.
资助项目	National Natural Science Foundation of China (NSFC)[51331007] ; National Natural Science Foundation of China (NSFC)[51771208] ; National Natural Science Foundation of China (NSFC)[U1664253] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22020202]
WOS研究方向	Materials Science
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000468000300021
资助机构	National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133387]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Peng; Zhang, Zhe-Feng
作者单位	1.Chinese Acad Sci, Mat Fatigue & Fracture Div, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, He-Fei,Duan, Qi-Qiang,Zhang, Peng,et al. The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?[J]. ADVANCED ENGINEERING MATERIALS,2019,21(4):6.
APA	Li, He-Fei,Duan, Qi-Qiang,Zhang, Peng,&Zhang, Zhe-Feng.(2019).The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?.ADVANCED ENGINEERING MATERIALS,21(4),6.
MLA	Li, He-Fei,et al."The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?".ADVANCED ENGINEERING MATERIALS 21.4(2019):6.