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Fabrication of carbon nanotubes reinforced AZ91D composites by ultrasonic processing LIU Shi-ying(刘世英)1, 2, GAO Fei-peng(高飞鹏)1, 2, ZHANG Qiong-yuan(张琼元)1, 2, ZHU Xue(朱 雪)1, 2, LI Wen-zhen(李文珍)1, 2 1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; 2. Key Laboratory for Advanced Materials Processing Technology of Ministry of Education, Tsinghua University......
Rheologic behavior and PIM processing of WC-TiC-Co powder feedstockXuanhui Qu, Jianxiang Gao,Mingli Qin, and Changming LeiBeijing Key Laboratory for Advanced Powder Metallurgy and Paniculate Materials, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China摘 要:
on the properties of final powder, and the properties can be easily improved by varying the processing parameters. Two series of measurements were conducted by varying arc current and gas pressure. For each series... Processing parameters for Cu nanopowders prepared by anodic arc plasma WEI Zhi-qiang(魏智强)1, 2, XIA Tian-dong(夏天东)2, MA Jun(马 军)1, FENG Wang-jun(冯旺军)1, DAI Jian-feng(戴剑锋)1, WANG Qing(王 青)1, YAN......
to the processing map and microstructure at true strain of 0.5. Key words: powder metallurgy; TiAl based alloy; hot compression deformation; processing map 1 Introduction TiAl-based alloys are widely used... into a more homogeneous and fine-grained microstructure by thermo-mechanical processing [4-6]. Compared to ingot metallurgy (IM) route, powder metallurgy (PM) technique is attractive since it exhibits good......
and complex system of phases in the microstructure, so they only can be hot worked into very narrow processing windows, in terms of temperature and strain rate. Powder metallurgy(P/M) processing generally... Hot deformation of spray formed nickel-base superalloy using processing maps KANG Fu-wei(康福伟)1, 2, ZHANG Guo-qing(张国庆)3, LI Zhou(李 周)3, SUN Jian-fei(孙剑飞)1 1. School of Materials Science......
and Engineering A, 2004, 375: 1201-1205. [13] BIROL Y. Al-Ti-B grain re?ners via powder metallurgy processing of Al/K2TiF6/KBF4 powder blends[J]. Journal of Alloys and Compounds, 2009, 480: 311-314... Optimization of processing parameters for preparation of Al-3Ti-1B grain refiner LI Bao(李 豹)1, WANG Hong-wei(王宏伟)1, ZHAO Rui-feng(赵瑞峰)2, WEI Zun-jie(魏尊杰)1 1. School of Materials Science......
of inclusions in nickel-base superalloy powder by plasma rotation electrode process(PREP). Inclusions in powder after different processing were assorted and analyzed their form, size, quantity and distribution... μm的粉末中夹杂物占总数量的35%. 图1 原始粉末的粒度与夹杂物分布对应关系图 Fig. 1 Distribution of powder particles and inclusions in original powder 2.2 夹杂物的类型和数量 图2所示为原始以及筛分和静电处理后粉末试样中夹杂物的类型和数量.筛分处理后,夹杂物去除50%以上......
of the lubricant from the compact during the warm compaction processing of Cu powder. Results also show that blisters can be found in sintered samples that contain lubricant less than 0.15%(mass fraction). Optimal... on the chemical composition and density of the materials. Conventional powder metallurgy (P/M) processing can produce copper green compact with a density of 8.3g/cm3, which is equivalent......
Rheologic behavior and PIM processing of WC-TiC-Co powder feedstockQU Xuanhui, GAO Jianxiang, QIN Mingli, and LEI Changming摘 要:<正> An improved wax-based binder was developed for the powder injection molding (PIM) of WC-TiC-Co cemented carbides. The critical powder loading and the rheologic behavior of the feedstock were determined. It was found......
Microstructural evolution and its effects on mechanical properties of spray deposited SiCp/8009Al composites during secondary processing CHEN Zhi-gang(陈志钢), CHEN Zhen-hua(陈振华), CHEN... by tensile testing. The experimental results show that lamellar structure is composed of pores and SiCp clusters and can be improved by secondary processing, enhancing mechanical properties. The main......