Acta Metall Sin  1996, Vol. 32 Issue (10): 1063-1067    DOI:

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CRITICAL VOID-GROWTH RATIO AND DUCTILE-BRITTLE TRANSITION OF STEELS

ZHOU Li(Wuyi University;Jiangmen 529020);GOU Wenxuan(Northwestern Polytechnical University;Xi'an 710072)(Departinent of Civil Engineering;Wuyi University;Jiangmen 529020)(Manuscript received 1995-12-22;in revised form 1996-06-09)

ZHOU Li(Wuyi University;Jiangmen 529020);GOU Wenxuan(Northwestern Polytechnical University;Xi'an 710072)(Departinent of Civil Engineering;Wuyi University;Jiangmen 529020)(Manuscript received 1995-12-22;in revised form 1996-06-09). CRITICAL VOID-GROWTH RATIO AND DUCTILE-BRITTLE TRANSITION OF STEELS. Acta Metall Sin, 1996, 32(10): 1063-1067.

Abstract References Related Articles Recommended Metrics Download:  PDF(324KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The critical void-growth ratio,Rc/Ro,of steel BHW60,steel 20 or steel 45 was measured quantitatively under SEM,and the measured positions are at the core of fracture surface of cylindrical tensile specimens.The ductile-brittle transitions due to both temperature and torsional prestrain were discussed by means of the micoscopic parameter ln(Rc/Ro).The concepts of both nil-ductility trasition stress triaxiality Tσ,ND and nil-brittility transition stress triaxiality Tσ,NB were proposed and the coupled effect of temrepature and stress states on the ductile-brittle transition was analyzed Key words:  critical void-growth ratio      ductile-brittle transition      stress states      torsional prestrain.      Received:  18 October 1996      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I10/1063 1涂明旌．见:涂明旌、邓增杰,周惠久编．低合金钢低温脆性断裂论文集,西安:西安交通大学出版社,1985:12郑长卿,RadonJC．西北工业大学学报．1985;3:4093周利,郑长卿,丁富连．西北工业大学学报,1994;12:5234周利,郑长卿,卢智先,丁富连．金属学报,1993;29:A3785周利,刘建民．见:实验应力分析专业委员会编．全国第七届实验力学学术会议论文集,北京:北京大学出版社,1992:1281" [1] Xinning ZHANG,Yingdong QU,Rongde LI,Junhua YOU. MECHANISM OF CRACK NUCLEATION AND PROPA- GATION OF FERRITE DUCTILE IRON DURING IMPACT FRACTURE UNDER LOW TEMPERATURES[J]. 金属学报, 2015, 51(11): 1333-1340. [2] BAO Jinsheng; YANG Cheng; HA Kuanfu(Jilin University; Changchun 130023). EFFECT OF DISLOCATION DENSITY ON DUCTILE-BRITTLE TRANSITION TEMPERATURE IN BULK Fe-3%Si SINGLE CRYSTALS[J]. 金属学报, 1995, 31(5): 197-200. [3] ZHANG Detang Beijing Institute of Aeronautical Materials. EFFECT OF DUCTILE-BRITTLE TRANSITION TEMPERATURE OF Al-Si COATING ON FATIGUE PROPERTIES OF Ni-BASE SUPERALLOYS[J]. 金属学报, 1990, 26(3): 61-65. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed