Acta Metall Sin  1997, Vol. 33 Issue (5): 504-508    DOI:

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NUMERICAL SIMULATION OF STRESS-STRAIN IN CASTING STEEL DURING SOLIDIFICATION AND FORMATION MECHANISM OF HOT-TEARING

JIA Baoqian; LIU Baicheng; WANG Dongtao(Tsinghua University; Beijing 100084)

JIA Baoqian; LIU Baicheng; WANG Dongtao(Tsinghua University; Beijing 100084). NUMERICAL SIMULATION OF STRESS-STRAIN IN CASTING STEEL DURING SOLIDIFICATION AND FORMATION MECHANISM OF HOT-TEARING. Acta Metall Sin, 1997, 33(5): 504-508.

Abstract References Related Articles Recommended Metrics Download:  PDF(388KB)  Export:  BibTeX | EndNote (RIS)       Abstract  As regard to several cases of real hot tearing ZG45 bars (C 0.42%-0.52%,Mn 0.5%- 0.8%, Si 0.2%- 0.45%), numerical simulation of stress-strain during solidification was conducted. The formation mechanism of hot tearing was discussed, and the conclusion is drawn that hot tearing originates from Bingham body and is caused when strain of Bingham body being over preserved plastic strain. The simulated results show that relative hot spot gives rise to increase in concentration strain of Bingham body, and that case of proper chilI could effectively decrease concentration strain of Bingham body, uponthere to reduce possibility of hot tearing. Key words:  formation mechanism of hot tearing      stress      strain      rheological behavior      numerical simulation      Received:  18 May 1997      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/Y1997/V33/I5/504 1林柏年.铸造流变学.哈尔滨:哈尔滨工业大学出版社,1991:102 2李德富,林柏年,阎永贵,安阁英.金属学报,1995;31:B389 [1] BI Zhongnan, QIN Hailong, LIU Pei, SHI Songyi, XIE Jinli, ZHANG Ji. Research Progress Regarding Quantitative Characterization and Control Technology of Residual Stress in Superalloy Forgings[J]. 金属学报, 2023, 59(9): 1144-1158. [2] DU Jinhui, BI Zhongnan, QU Jinglong. Recent Development of Triple Melt GH4169 Alloy[J]. 金属学报, 2023, 59(9): 1159-1172. [3] LI Shilei, LI Yang, WANG Youkang, WANG Shengjie, HE Lunhua, SUN Guang'ai, XIAO Tiqiao, WANG Yandong. Multiscale Residual Stress Evaluation of Engineering Materials/Components Based on Neutron and Synchrotron Radiation Technology[J]. 金属学报, 2023, 59(8): 1001-1014. [4] LIANG Kai, YAO Zhihao, XIE Xishan, YAO Kaijun, DONG Jianxin. Correlation Between Microstructure and Properties of New Heat-Resistant Alloy SP2215[J]. 金属学报, 2023, 59(6): 797-811. [5] LI Qian, LIU Kai, ZHAO Tianliang. Rust Formation Behavior and Mechanism of Q235 Carbon Steel in 5%NaCl Salt Spray Under Elastic Tensile Stress[J]. 金属学报, 2023, 59(6): 829-840. [6] HAN En-Hou, WANG Jianqiu. Effect of Surface State on Corrosion and Stress Corrosion for Nuclear Materials[J]. 金属学报, 2023, 59(4): 513-522. [7] WAN Tao, CHENG Zhao, LU Lei. Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu[J]. 金属学报, 2023, 59(4): 567-576. [8] CHANG Litao. Corrosion and Stress Corrosion Crack Initiation in the Machined Surfaces of Austenitic Stainless Steels in Pressurized Water Reactor Primary Water： Research Progress and Perspective[J]. 金属学报, 2023, 59(2): 191-204. [9] WANG Kai, JIN Xi, JIAO Zhiming, QIAO Junwei. Mechanical Behaviors and Deformation Constitutive Equations of CrFeNi Medium-Entropy Alloys Under Tensile Conditions from 77 K to 1073 K[J]. 金属学报, 2023, 59(2): 277-288. [10] WANG Chongyang, HAN Shiwei, XIE Feng, HU Long, DENG Dean. Influence of Solid-State Phase Transformation and Softening Effect on Welding Residual Stress of Ultra-High Strength Steel[J]. 金属学报, 2023, 59(12): 1613-1623. [11] ZHANG Zixuan, YU Jinjiang, LIU Jinlai. Anisotropy of Stress Rupture Property of Ni Base Single Crystal Superalloy DD432[J]. 金属学报, 2023, 59(12): 1559-1567. [12] ZHANG Kaiyuan, DONG Wenchao, ZHAO Dong, LI Shijian, LU Shanping. Effect of Solid-State Phase Transformation on Stress and Distortion for Fe-Co-Ni Ultra-High Strength Steel Components During Welding and Vacuum Gas Quenching Processes[J]. 金属学报, 2023, 59(12): 1633-1643. [13] JIANG Jiang, HAO Shijie, JIANG Daqiang, GUO Fangmin, REN Yang, CUI Lishan. Quasi-Linear Superelasticity Deformation in an In Situ NiTi-Nb Composite[J]. 金属学报, 2023, 59(11): 1419-1427. [14] WANG Nan, CHEN Yongnan, ZHAO Qinyang, WU Gang, ZHANG Zhen, LUO Jinheng. Effect of Strain Rate on the Strain Partitioning Behavior of Ferrite/Bainite in X80 Pipeline Steel[J]. 金属学报, 2023, 59(10): 1299-1310. [15] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. Effects of Stress Ratio on the Fatigue Crack Growth Rate Under Steady State of Selective Laser Melted TC4 Alloy with Defects[J]. 金属学报, 2023, 59(10): 1411-1418. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed