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with beddings of different dip angles in compression and tensile tests was simulated with numerical method, and the failure mechanism of rock mass was discussed through analyzing the deformation... of complex jointed rock mass in practical engineering. Key words: jointed rock mass; strength parameters; bedding dip angle; numerical simulation 岩体是赋存于一定地质环境中,经受过不同时期,不同规模和不同性质构造运动改造的地质体的一部分.由于岩体结......
Hot deformation mechanism and microstructure evolution of TC11 titanium alloy in b field CHEN Hui-qin(陈慧琴)1, 2, CAO Chun-xiao(曹春晓)1, GUO Ling(郭 灵)1, LIN Hai(林 海)1 1. Beijing Institute...; Abstract: Hot deformation behaviors of TC11 alloy with b-annealed lamellar structure and forged equiaxed structure were investigated in the b field in the temperature range of 1 090-1 030......
Processing map and hot working mechanisms of Cu-Ag alloy in hot compression processWANG Meng-han(王梦寒), HUANG Long(黄龙), CHEN Ming-liang(陈明亮), WANG Yan-li(王彦丽) (School of Materials Science... from the stress-strain data generated by hot compression tests at temperatures of 700-850 °C and strain rates of 0.01-10 s-1. And at the true strain of 0.15, 0.35 and 0.55, respectively, the responses......
HOT CORROSION BEHAVIOR OF K38G ALLOY AND ITS SPUTTERED NANOCRYSTALLINE COATING BY PRE-DEPOSITED SULFATE AT 900℃ S.L.Zhu1,W.T.Wu1,Fuhui WANG1,S.J.Geng1 (1.State Key Laboratory for Corrosion.... The hot corrosion behaviors of cast K38G alloy and its sputtered nanocrys-talline coating by pre-deposited 75wt%Na2SO4+25wt%K2SO4 at 900℃ were studied.The results indicated the occurrence of internal......
Flow behavior of Ti-46.2Al-2.5V-1.0Cr-0.3Ni alloy in secondary hot deformation SI Jia-yong(司家勇), HAN Peng-biao(韩鹏彪), CHANG Xia(昌 霞), ZHANG Ji(张 继) High Temperature Material Research Division... was investigated by the isothermal compression experiments. The direction of secondary hot deformation was taken to be vertical to the former forging axis. And the deformation activation energy......
Hot deformation and processing maps of titanium matrix composite WANG Rui-ning(王蕊宁)1, 2, XI Zheng-ping(奚正平)2, ZHAO Yong-qing(赵永庆)2, QI Yun-lian(戚运莲)2 1. School...; Abstract: The hot deformation characteristics of TiC particles reinforced titanium......
Study of Microstructure and Magnetic Properties of Pr-Fe-B-Cu Permanent Magnets by Hot Deformation 高天明1,杨昌平1,吴严1,陈秀云1,朱静1,姜忠良1 (1.Department of Materials Science and Engineering, School... by hot deformation was studied. Fine and well-aligned column grains can be obtained by using a proper solidification mould with a high cooling rate. The soft magnetic phase α-Fe can be removed during......
迁钢2号高炉高风温研究陈冠军1,竺维春1,胡雄光1,蔡景春2,倪苹3,杨天钧4(1.北京市首钢技术研究院2.首钢迁钢公司,河北迁安 0644043.首钢国际工程技术公司,北京 1000414.北京科技大学,北京 100083)摘 要:从迁钢2号高炉系统投产运行现状,分析了风温限制环节,从热风炉,热风管道和高炉接受高风温等全面考察了其实现高风温的可行性.通过迁钢2号高炉开展高风温试验,总结分析了实现高风温的具体措施,阐明高风温不仅与热风炉操作紧密关联,而且原燃料,高炉操作等因素直接影响高炉使用高风温.研究结果表明......
Hot deformation behavior of Al-Cu-Li-Mg-Zr alloy containing Zn and Mn CHEN Yong-lai(陈永来)1, LI Jin-feng(李劲风)2, L? Hong-jun(吕宏军)1, LI Shi-chen(李世晨)2, ZHENG Zi-qiao(郑子樵)2, ZHANG Yu-wei(张宇伟)1, ZHANG...; Abstract: The hot deformation behavior of a new Al-Cu-Li-Mg-Zr alloy was studied, and its......