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示. 由图5可知:随着护顶层物理力学性质劣化,护顶层的安全厚度将不断增加,随着软化系数不断减小,安全厚度增加趋势越快.这表明护顶层软化程度越高,预留安全厚度增加幅度越大. 图5 不同软化系数下护顶层安全厚度 Fig. 5 Safety thicknesses of the protective roof under different softening factors 因此,铝土矿山应强采强出.... Investigation on the fracture mechanism of the immediate roof in shallow buried gypsum mine and its application[J]. Journal of Mining & Safety Engineering, 2018, 35(4): 773-779. [8] SWIFT G......
; Influences of strain softening and seepage on elastic and plastic solutions of circular openings...; Abstract: Considering the influence of strain softening, the solutions of stress, displacement, plastic softening region radius and plastic residual region radius were derived......
[J]. Ironmaking and Steelmaking, 2006, 33(6): 507-520. [14] Kaushik P, Fruehan R J. Mixed burden softening and melting phenomena in blast furnace operation (Part 3): Mechanism of burden interaction... indexes reach above 80%. The reducibility of lump is the worst. It is superimposed for mix burden in reducibility and reduction disintegration, but not for softening and melting. Therefore......
Effect of Zr Addition on Resistance to High Temperature Softening and Resistivity of 6082 Al-Mg-Si Alloys SHAO Guang-jie1,SUN Bao-liang2,ZHANG Pei-pei1,LI Jing1,JIN Man1 (1.Material Science Department, Shanghai University, 200072, Shanghai, China;2.Shanghai Huizhong Automotive Manufacturing Co., Ltd. Shanghai, China) 摘要:The influence of zirconium on the resistance to high temperature softening......
Plastic Deformation Mechanism of Dual-phase Steel at Different Strain Rates庞启航1,2,ZHAO Zhenduo3,徐梅3,徐振1,2,ZHAO Tan21. School of Materials and Metallurgy, University of Science and Technology... universal testing machine and a high-speed tensile testing machine.The plastic deformation mechanism was investigated from the perspectives of the strain rate sensitivity index,activation volume and dynamic......
J. Cent. South Univ. (2012) 19: 1508-1516 DOI: 10.1007/s11771-012-1169-0 Softening interstage annealing of austenitic stainless steel sheets for stamping processes HAN Fei(韩飞)1, 2, 3, LIN Gao-yong(林高...-hardening and annealing-softening, a series of experiments were conducted on samples of 304 austenitic stainless steel sheets. In addition, transmission electron microscopy (TEM), scanning electron microscopy......
Deforming analysis of sheet metal based on stereo vision and coordinate gridHongqin Wei, Dehong Yu, Xueyu Ruan, and Youqing Wang Department of Plasticity Technology, Shanghai Jiaotong University, Shanghai 200030, China Die or Mould and Plasticity Processing Research Institute, Xi’an Jiaotong University, Xi’an 710049, China摘 要:<正> A new approach......
Microstructural evolution and tensile properties of low-carbon steel with martensitic microstructure during warm deforming and annealingYuwei Gao~(1,2)) Tianfu Jing~(1,2) Guiying Qiao~(1,2)) Jinku Yu~(1,2)) Tiansheng Wang~(1,2)) Qun Li~(2)) Xinyu Song~(2)) Shuqiang Wang~(2)) Hong Gao~(2)) 1)State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao......
Warm deformation mechanism of hot-rolled Mg alloy LIU Jun-wei(刘俊伟), CHEN Ding(陈 鼎), CHEN Zhen-hua(陈振华) College of Materials Science and Engineering, Hunan University, Changsha 410082, China...: extension twins, contraction twins and double twins. LAN et al[9] pointed out that the softening induced by both contraction twinning [10-11] and tension twinning[10-12] overrides the dislocation......
Microstructural softening induced adiabatic shear banding in Ti-23Nb-0.7Ta-2Zr-O gum metalSilu Liu1,Y.Z.Guo2,Z.L.Pan3,X.Z.Liao4,E.J.Lavernia5,Y.T.Zhu6,1,Q.M.Wei3,Yonghao Zhao11. Nano... candidate material for applications that require superior mechanical properties. In our earlier investigation of the GM [1], geometrical softening and the generation of adiabatic shear bands(ASBs......
