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The Relationship between Strength and Toughness in Tempered Steel: Trade-Off or Invariable?
Li, He-Fei; Duan, Qi-Qiang; Zhang, Peng; Zhang, Zhe-Feng
2019-04-01
Source PublicationADVANCED ENGINEERING MATERIALS
ISSN1438-1656
Volume21Issue:4
AbstractTwo 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.
Keywordcrack initiation and growth fracture toughness impact toughness strength-toughness relationship tempered martensite embrittlement
Indexed BySCI
Language英语
WOS IDWOS:000468000300021
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81207
Collection中国科学院金属研究所
Recommended Citation
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).
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).
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).
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