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Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion
Zhao, TZ; Zhang, GL; Zhang, SH; Zhang, LY; Zhao, TZ (reprint author), Shenyang Aerosp Univ, Key Lab Fundamental Sci Natl Def Aeronaut Digital, Shenyang 110016, Liaoning, Peoples R China.
2016-11-01
发表期刊JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN1006-706X
卷号23期号:11页码:1206-1212
摘要The fracture characteristics of fully pcarlitic steel wires with fine and randomly oriented lamellae have been investigated after tension and torsion, respectively. It is found that the predominant fracture mode under small pre deformation is dimple. The analysis of the colony size and the lamellar structure near the fracture surface indicates that each dimple roots from one colony. A simulation of tensile deformation with several pcarlitic colonies based on the real scanning electron microscopy (SEM) observation shows that the plastic deformation concentrates and the stress traxiality is larger at the boundaries of colonies. It demonstrates the microcracks initialize at colony boundaries. Thus, the colony size is a significant factor for fracture behaviors under small pre-deformation. On the other hand, the fracture surface is investigated after large pre-deformation via torsion. The results show that fracture characteristics vary with radius from dimples, elongated dimples to the fibrous structure. It indicates that the fracture characteristics arc dependent on the pre-deformation. The fracture mode under large pre-deformation becomes an anisotropic fibrous structure instead of dimples.
部门归属[zhao, tian-zhang ; zhang, ling-yun] shenyang aerosp univ, key lab fundamental sci natl def aeronaut digital, shenyang 110016, liaoning, peoples r china ; [zhang, guang-liang] taizhou univ, sch mech engn, taizhou 318000, zhejiang, peoples r china ; [zhang, shi-hong] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词Fracture Pcarlitic Steel Wire Tension Torsion
学科领域Metallurgy & Metallurgical Engineering
资助者National Natural Science Foundation of China [51034009, 51404158]; Doctoral Initiation Foundation of Liaoning Province of China [201601176]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76192
专题中国科学院金属研究所
通讯作者Zhao, TZ (reprint author), Shenyang Aerosp Univ, Key Lab Fundamental Sci Natl Def Aeronaut Digital, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Zhao, TZ,Zhang, GL,Zhang, SH,et al. Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2016,23(11):1206-1212.
APA Zhao, TZ,Zhang, GL,Zhang, SH,Zhang, LY,&Zhao, TZ .(2016).Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,23(11),1206-1212.
MLA Zhao, TZ,et al."Fracture Characteristics of Fully Pearlitic Steel Wire in Tension and Torsion".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 23.11(2016):1206-1212.
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