共搜索到4896条信息,每页显示10条信息,共490页。用时:0小时0分0秒348毫秒
......
words: Cu-Cr alloy; liquid phase separation; melt spinning; rapid cooling 1 Introduction Cu-Cr alloys containing 20%-50%Cr have been widely investigated because they are the most important... not widely used. In order to obtain refined microstructures, in our prior work[10] we prepared Cu-Cr ribbons containing 3%-25%Cr by melt spinning. It was found that a lot of larger Cr particles were......
Thermodynamic properties and mixing thermodynamic parameters of two-phase metallic meltsJian Zhang Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正>Based on the calculating model of metallic melts involving eutectic, the calculating equations of mixing thermodynamic......
Optimization of mixing time in a ladle with dual plugsDian-qiao Geng, Hong Lei, and Ji-cheng He Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education of China), Northeastern University, Shenyang 110819, China摘 要:Based on the two-phase fluid (Eulerian-Eulerian) model, a mathematical model about the gas-liquid flow and mixing......
as can be seen from Figs. 3 and 4. It is believed that the efficient mixing in the liquid due to the acoustic streaming led to a state in the melt of substantially low undercooling, which did... study was to investigate the use of ultrasonic melt treatment technology in the production of grain-refined billets of the AC7A alloy, which was intended for subsequent use as a feedstock in forming......
Trans. Nonferrous Met. Soc. China 23(2013) 3668-3676 Effect of Nd content on electrochemical performances of nanocrystalline and amorphous (Mg24Ni10Cu2)100-xNdx (x=0-20) alloys prepared by melt...; accepted 21 October 2013 Abstract: The nanocrystalline and amorphous Mg2Ni-type alloys with a chemical composition of (Mg24Ni10Cu2)100-xNdx (x=0, 5, 10, 15, 20) were fabricated by melt spinning technology......
......
Microstructures of surface modification layer on Q235 steelproduced by laser melt injection of WC LI Fu-quan(李福泉), CHEN Yan-bin(陈彦宾), LI Li-qun(李俐群) State Key Laboratory of Advanced Welding...; Abstract: WC powder was injected onto the surface of Q235 steel by laser melt injection (LMI......
Preparation of AZ91D magnesium alloy semi-solid billet by new strain induced melt activated method JIANG Ju-fu(姜巨福)1, 2, LUO Shou-jing(罗守靖)1, ZOU Jing-xiang(邹经湘)2 1. School of Materials Science...; accepted 6 April 2006 Abstract:New strain induced melt activated (new SIMA) method for preparing AZ91D magnesium alloy semi-solid billet is introduced by applying equal channel angular extrusion......
......