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was discussed. When the liquid aluminum-magnesium was used as the reductive agent, the all-recovery exceeds 80% and the concentration of Sc in master alloy prepared exceeds 1.9%. The best reducing reaction...Preparation of Scandium-Bearing Master Alloys by Aluminum-Magnesium Thermoreduction 尹志民1,白兰1,姜锋1 (1.Institute of Materials Science and Engineering, Central South University, Changsha 410083, China......
IMPROVEMENT OF TYPE IV CRACKING RESISTANCE OF 9Cr HEAT RESISTING STEEL WELDMENT BY BORON ADDITION T.Watanabe1,F.Yin1,M.Kondo1,M.Tabuchi1,F.Abe1,H.Hongo1 (1.National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan) Abstract:Creep lives of high Cr ferritic heat resisting steel weldments decrease due to Type IV fracture, which occurs as a result of formation and growth of creep......
with the initial boron content in slag. Therefore, the purity of slag needs to be controlled precisely. From Fig. 4, it is apparent that there is no obvious improvement of LB even when η is very high... process for silicon alloy [D]. Shanghai: Shanghai University, 2001: 32. (in Chinese) [9] KHATTAK C P, JOYCE D B, SCHMID F. A simple process to remove boron from metallurgical grade silicon [J]. Solar......
to prepare Al-Ti-B master alloy in industry. Key words: Al-Ti-B; master alloy; feeding order; phase; TiAl3; cleanliness Foundation item: Project (SQ2014AAJY1025) supported by the National High-Tech Research... International, 2009, 42: 59-65. [3] PRASADA RAO A K, DAS K, MURTY B S, CHAKRABORTY M. Al-Ti-C-Sr master alloy-A melt inoculant for simultaneous grain refinement and modification of hypoeutectic Al-Si alloys......
by alkali leaching of a commercially available crystalline Ni-Al alloy[7-9]. Meanwhile, Ni can improve Al and its alloys’ high temperature strength and stability in dimension, and Ni can reduce the hazardous effects of Fe in Al alloys. In general, Ni is added to Al alloys in the form of Al-Ni master alloys. So Al-Ni master alloy is very important material. Metal nickel has useful bulk properties......
Grain refinement of AZ31 magnesium alloy by Al-Ti-C-Y master alloy许春香,卢斌峰,吕正玲,梁伟摘 要:Al-Ti-C-Y master alloy was prepared by combining SHS technique and melting-casting method. The microstructure of master alloy and its grain-refining effect on AZ31 alloy were investigated by means of OM, XRD, SEM and EDS. Experimental results indicated that the prepared......
Trans. Nonferrous Met. Soc. China 22(2012) s661-s667 Effect of alloying on high temperature fatigue performance of ZL114A (Al-7Si) alloy DONG Xu-gang1, ZHOU Jie1, JIA Yao-jun1, LIU Bin2 1. College...: The effect of Cu, Fe and Ni on high-temperature mechanical performance and fatigue properties of ZL114A alloy was studied through high temperature fatigue test and SEM. The results show......
Effect of Cerium and Boron on Microstructures and Properties of Cu-Ni-Si Alloy陆德平,陆磊,王俊,陈志宝,孙宝德摘 要:The effects of trace boron and cerium addition on microstructures and properties of high-strength and high-conductivity Cu-Ni-Si alloys were studied. The results showed that the recrystallization starting temperature of Cu-Ni-Si alloy was greatly raised......
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