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Extending dynamic models of mining subsidenceLIAN Xu-gang1, 2, Andrew JAROSZ2, Jose SAAVEDRA-ROSAS2, DAI Hua-yang1(1. College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China; 2. Western Australian School of Mines, Curtin University, Kalgoorlie 6430, Australia)Abstract:The movement and deformation processes of the overburden strata......
Continuously extending extrusion forming of semisolid A2017 alloy by SRS processGUAN Renguo, WEN Jinglin, LIU Xianghua, and LI YinglongMaterial and Metallurgy School, Northeastern University... machine. Through controlling pouring temperature, semisolid formingand extending extrusion was combined organically. A2017 product with fine surface and rectangular transection of 14mmx25 mm was obtained......
Microstructure behavior and metal flow during continuously extending-extrusion forming of semisolid A2017 alloy GUAN Ren-guo(管仁国), WEN Jing-lin(温景林), WANG Shun-cheng(王顺成), LIU Xiang-hua(刘相华...; Abstract: A self-designed test machine of continuously semisolid extending extrusion was made to produce the flat bar of A2017 alloy. The slurry of A2017......
材；连续流变扩展成形；时效；性能 中图分类号:TG 111.4; TG 244.1 文献标识码: A Continuous extending rheo-extrusion process for producing 6201 alloy tube GUAN Ren-guo, LI Xue, LI Jiang-ping, XIAO Zhao-hui, ZHU Li-jie, WEN Jing-lin (School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China) Abstract: Continuous extending rheo-extrusion process......
: A Finite element modelling analysis of metal flowing during process of extending extruding semisolid A2017 alloy GUAN Ren-guo, LI Ying-long, WANG Shun-cheng, LIU Xiang-hua, WEN Jing-lin (Material... extending extrusion A2107 alloy. The results show that alloy velocity decreases gradually from the center to sides of mould wall. In the middle of the way from the center to the side of the mould......
Trans. Nonferrous Met. Soc. China 22(2012) 1182-1189 Simulation of temperature field and metal flow during continuous semisolid extending extrusion process of 6201 alloy tube GUAN Ren-guo, ZHAO Zhan... semisolid extending extrusion (CSEP) method was proposed. Temperature field and metal flow during continuous semisolid extending extrusion process of 6201 alloy tube were studied. During the process......
A2017半固态合金的半固态扩展成形 温景林1,管仁国1,刘相华1 (1.东北大学) 摘要:用单辊搅拌(SRS)实验机进行了A2017合金的半固态凝固实验,研究了A2017半固态合金组织的形成机理.在轧辊剪切力的作用下在轧辊粗糙表面生长初始枝晶,破碎后形成自由晶,自由晶自由运动和生长形成细小均匀的A2107合金球形组织.在710~750℃内浇注,可制备出具有细小,均匀球形组形,使半固态成形与扩展挤压相结合,通过控制浇注温度得到了表面状态良好的断面尺寸为14mm×25mm的A2017扁型材料.用半固态扩展挤压方法得到的材料断裂强度为280MPa(比国际值提高100MPa),延伸率为49%(......
Effect of Cerium on Microstructures of Hard Alloys王瑞坤,尤力平,王晓华,刘安生,贺从训摘 要:<正> Microstructures and crack extending characteristic of the YG8R,YT5R and YT14R hard alloysadding a trace cerium were studied by AEM and HVEM with a tensile holder.In the hard alloys addingcerium,the compounds of Ce2O3 or Ce2O2S could be formed,extending of stacking faults......
investigated by z-scan technique and pump-probe technique.The results indicate that the third-order optical nonlinearity increases with extending the annealing time,the fast decay process with lifetime... process is accelerated with extending the annealing time.关键词:......
in recrystallization process. But with the holding time extending, γ fiber texture transferred to other texture after the holding time got to a certain degree. The major CSLs in 00Cr12 Ti FSS after recrystallization are Σ3 and the frequency of Σ3 climb up and then decline with the holding time extending. Σ11 plays an important role in the process of recrystallized γ fiber texture formation.关键词:......
