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by several times, and the tensile stress achieves the maximum at the area of joint between the cladding and substrate. Therefore, it is inferred that transversal crack is the most main crack form in multi...-track cladding; stress field; transversal crack  ......
: A Effect of C content on transversal bending property of molybdenum-carbon bars CHEN Chang, WANG Ming-pu, TAN Wang, GUO Ming-xing, ZHANG Juan, JIN Peng (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: The transversal bending property and microstructure of molybdenum-carbon bars under different conditions were investigated by bending......
含铌,钒,钛微合金钢连铸坯角部横裂纹研究现状 唐萍1,文光华1,马范军1,韩靖1 (1.重庆大学材料科学与工程学院,重庆,400044) 摘要:在微合金钢连铸生产过程中,角部横裂纹一直未得到有效解决,裂纹的存在减少了铸坯热送量.严重影响生产顺行.综述了微合金连铸坯角部横裂纹的形成机理,重点分析了铌,钒,钛等微合金元素对角部横裂纹的影响,分析了防止横裂纹产生的措施,认为消除微合金钢连铸坯角部横裂纹的最有效方法是控制铸坯表层微观组织,使其具有较低的裂纹敏感性,克服连铸弯曲与矫直过程中产生的应力,而不产生裂纹. 关键词:微合金钢; 连铸坯; 角部横裂纹; micro-alloyed steel; slab; comer transversal crack; [全文内容正在添加中] ......
SHORT FATIGUE CRACK PARAMETER BASED ON THE TOTAL CRACK AREA X.C.Wu1,Z.X.Wu1 (1.Engineering College,Yangzhou University,Yangzhou 225009,China) Abstract:The progressive fatigue damage of a material... testswere carried out using smooth specimens of medium-carbon steel.The behavior ofshort crack propagation during fatigue was examined and a new parameter "totalcrack area" was suggested.The aim......
J. Cent. South Univ. (2019) 26: 3045-3056 DOI: https://doi.org/10.1007/s11771-019-4235-z Crack evolution behavior of rocks under confining pressures and its propagation model before peak stress ZUO... University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: The understanding of crack propagation characteristics and law of rocks during the loading process is of great......
FATIGUE CRACK PROPAGATION OF Ni-BASE SUPERALLOYS L.Z.Ma1,E.Barbero1,X.B.Liu1,K.M.Chang1 (1.Dept. of Mechanical & Aerospace Engineering, West Virginia University, Morgantown,WV 26506-6106, USA) Abstract:Time-dependent Fatigue Crack Propagation (FCP) behaviors of five Ni-base superalloys were investigated at various temperatures under fatigue with various holding times and sustained loading......
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Crack spacing threshold of double cracks propagation for large-module rackZHAO Tie-zhu(赵铁柱), SHI Duan-wei(石端伟), YAO Zhe-hao(姚哲皓), MAO Hong-yong(毛宏勇), CHENG Shu-xiao(程术潇), PENG Hui(彭惠) (School... inclusions and surface cracks. To ensure its safety in the future service, studying on crack propagation rule and the residual life estimation method of large-module rack is of great significance......
A METHOD OF AS-CAST CRACK PREDICTION BASED UPON NUMERICAL SIMULATION OF SOLIDIFICATION J.Z.Jin1,X.S.Zheng1,S.Yao1 (1.Research Center of Foundry Engineering, Dalian University of Technology,Dalian 116024, China) Abstract:Based on the numerical simulation of solidification of castings, a thermal stress formula and a thermal crack initiation criterion are established, which suggest......
A NOVEL PARAMETER FOR EVALUATING THE FATIGUE CRACK GROWTH RATE IN CARBON STEELS H.Nisitani1,S.Q.Zhu2,N.KAWAGOISHI3,X.S.WANG2 (1.Faculty of Engineering,Kyushu Sangyuo University,Fukuoka,812,Japan... for evaluating the fatigue crack growth rate in carbonsteels.Fatigue crack propagation tests of an annealed 0.42% carbon steel were carriedout under different conditions to investigate the relationship between......