共搜索到12561条信息，每页显示10条信息，共1257页。用时：0小时0分0秒529毫秒
Continuously extending extrusion forming of semisolid A2017 alloy by SRS processGUAN Renguo, WEN Jinglin, LIU Xianghua, and LI YinglongMaterial and Metallurgy School, Northeastern University... of A2017 alloy were obtained. Ex-tending forming mould has been designed and was installed at the exit of roll-shoe gap. A2017 alloy was formed by ex-tending continuously at the semisolid state on SRS......
化 中图分类号:TG146.22 文献标识码:A Effects of SiC addition on microstructure of AZ91D alloy initial billet with various size during semisolid isothermal treatment LI... cut into some billets with determined diameters, and heated to semisolid temperature. The effect of SiC addition on microstructure of mutative-size AZ91D initial billet during semisolid isothermal......
named general semisolid processing is presented in which the proper rheology and satisfied mechanical properties are created, respectively, in the slurry preparing and forming stages. The task of the slurry preparing is only to obtain proper rheology of the semisolid alloy, and the task of the forming stage is to obtain the required shape, dimension and inner quality. Because the glomeration......
B4C reinforced aluminum matrix composites via blended powder semisolid forming that is an implementation of the benefits of semisolid forming to the powder metallurgy. Al7075 elements were... powder pressed under 100 MPa exhibited the highest values of hardness (HV 190) and compressive strength (336 MPa). Key words: blended powder; mechanical alloying; semisolid forming; B4C; aluminum......
to semisolid forming has been developed by a combination of thermodynamic and experimental approaches[6]. The alloy was designed for high temperature applications and exhibited superior creep behavior... Microstructure evolution during reheating of extruded Mg-Gd-Y-Zr alloy into semisolid state GAO Lei(高 磊)1, 2, LIANG Song-mao(梁松茂)1, CHEN Rong-shi(陈荣石)1, HAN En-hou(韩恩厚)1 1. State Key Laboratory......
effects on the quality and properties of the work pieces produced by the semisolid forming process. The factorial experiments show that all of the heating factors, such as mold temperature, heating...Mold-filling ability of semisolid alloyShuming Xing1), Lizhong Zhang1), Daben Zeng2), Juntao Shi2)1) Department of mechanical engineering, Northern Jiaotong University, Beijing 100044, China2......
and Engineering, University of Science and Technology Beijing, Beijing 100083, China) Abstract: AZ91 and AZ91+2.0%Si Mg alloys were prepared by spray forming technology in protecting atmosphere... forming process restrains the growth of Mg2Si. Mg2Si existing in the fine grains, presents polygonal or near round shape, which uniformly distributes and can be the heterogeneous core of α-Mg, so......
-forming. The self-inoculation method (SIM) is a novel casting method, which is used for preparation of semisolid billets with non-dendritic microstructure. The process involves mixing between liquid alloy... density and a small grain size in solidification morphology. SIM can be used in rheo-forming and thixo-forming. The research on preparing semisolid billets of AM60 alloy with SIM has been completed in our......
-step process that involves preparing a feedstock material with a non-dendritic microstructure, then heating the feedstock to the forming temperature in the semisolid region, and consequently forming...Trans. Nonferrous Met. Soc. China 27(2017) 1483-1497 Microstructural evolution during semisolid processing of Al-Si-Cu alloy with different Mg contents K. S. ALHAWARI1, M. Z. OMAR1, M. J. GHAZALI1, M......
......
