Acta Metall Sin  1996, Vol. 32 Issue (7): 723-729    DOI:

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DISCOVERY OF INNER CRACK RECOVERY AND ITS STRUCTURE CHANGE IN 20MnMo STEEL

HAN Jingtao (University of Science and Technology Beijing; Beijing 100083);ZHAO Gang (The 1202 Factory of PLA; Beijing 100036); CAO Qixiang(Tsinghua University; Beijing 100084) (Manuscript received 1995-11-10; in revised form 1996-02-14)

HAN Jingtao (University of Science and Technology Beijing; Beijing 100083);ZHAO Gang (The 1202 Factory of PLA; Beijing 100036); CAO Qixiang(Tsinghua University; Beijing 100084) (Manuscript received 1995-11-10; in revised form 1996-02-14). DISCOVERY OF INNER CRACK RECOVERY AND ITS STRUCTURE CHANGE IN 20MnMo STEEL. Acta Metall Sin, 1996, 32(7): 723-729.

Abstract References Related Articles Recommended Metrics Download:  PDF(638KB)  Export:  BibTeX | EndNote (RIS)       Abstract  By physical modelling, the recovery phenomenon of inner crack in 20MnMo steel at high temperature was discovered, and its regular pattern was concluded.It was believed that the recovery process was mainly controlled by the diffusion and migration of metal atoms. The recovery process can be divided into two steps, void filling and grain growing. The filling materials consisted of many very fine grains with segregation of iron. There was a very clear boundary between the filling materials and matrix. The grain growing and composition homogenzing occurred simultaneously. Inner cracks and voids can be filled and taken away in a certain deformation. A certain holding time was necessary for grain growing and inner crack recovery entirely.Correspondent: HAN Jingtao, associate professor, Department of Metalworking, University of Scicnce and Technology Beijing, Beijing 100083 Key words:  inner crack      damage at high temperature      crack recovery      metal forming      Received:  18 July 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/I7/723 1曹起骧,韩静涛,马庆贤,郑 涛,谢云灿,李福利．塑性工程学报,1994,1(1):142 ShapiroE,DieterGE．MetallTrans,1970,1:17113金宁．清华大学博士学位论文,1990 [1] WANG Peng DONG Xianghuai FU Lijun. MULTI-STEP NUMERICAL SIMULATION OF BULK METAL FORMING PROCESSES BASED ON DEFORMATION THEORY OF PLASTICITY[J]. 金属学报, 2009, 45(1): 124-128. [2] HU Zhong; ZHU Lihua; LI Jiaqing (Tsinghua University;Beijing100084)(Manuscript received 1996-04-05; in revised form 1996-06-06). NUMERICAL SIMULATION ON RING COMPRESSION──A New Approch to Determine Calibration Curves of Friction Coefficient[J]. 金属学报, 1997, 33(4): 337-344. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed