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Trans. Nonferrous Met. Soc. China 25(2015) 2137-2146 Microstructure characterization and mechanical properties of gas tungsten arc welded cast A356 alloy S. TAKHTI, M. REIHANIAN, A. ASHRAFI... and mechanical properties of the gas tungsten arc welded cast A356 alloy were investigated with fillers ER1100, ER4043, ER4047 and ER5356 under the pulse frequencies of 1, 3 and 5 Hz. Results showed......
Effect of Ni Addition on Microstructure of Matrix in Casting Tungsten Carbide Particle Reinforced CompositeQuan Shan,Zulai Li,Yehua Jiang,Rong Zhou,Yudong SuiSchool of Material Science... matrix composites. By using vacuum casting-infiltration method to manufacture casting tungsten carbide particle reinforced composite,the addition of Ni can alter the microstructure of the matrix......
with the other alloys. It can be concluded that the optimal sintering temperature of 90W-4Ni-2Fe-3.8Mo-0.2RE pre-alloyed powders after 15 h mechanical alloying is 1 300-1 350 ℃. Key words: tungsten based high... and science, tungsten based high-density alloy plays an important role in conventional fields of national defense, war industry, aviation and spaceflight, and its consumption as a refractory material......
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;同时,基片材料也是影响W纳米线阵列形貌的一个重要的因素,在相同条件下,SiO2基片上生成的W纳米线阵列为六方结构形貌,而W基片上生成的W纳米线阵列为四方结构形貌. REFERENCES [1] LASSNER E, SCHUBERT W D. Tungsten: Properties, chemistry, technology of the element, alloys... properties of sub-micrometer-sized tungsten-whisker arrays fabricated by vapor deposition[J]. Advanced Materials, 2009, 21(23): 2387-2392. [3] CHANG J Y, YANG Y, WANG L. Tungsten nanowire based......
High Temperature Gaseous Rare-Earth Permeation of Polyoxotungstates:An New Effective Method for the Preparation of Tungsten Bronzes 郭元茹1,韦永德1,李中华1,周百斌1 (1.Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China) Abstract:New polyoxometalate α-K12H3[Y(BW11O39)2]·25H2O was synthesized and treated by high temperature gaseous rare earth permeation to prepare tungsten......
的显微硬度,其结果与试验值相吻合. 关键词:镁合金;复合材料;搅拌摩擦加工;Ti颗粒 中图分类号:TB 331 文献标识码:A Preparation of Mg-AZ31 based composites with Ti particles by friction stir processing WANG Kai-dong1... University of Technology, Dalian 116024, China; 2. National Sun Yat-Sen University, Kaohsiung 804, China) Abstract: Mg-AZ31 based composites with 20% (volume fraction) and 40% Ti particles were......
Trans. Nonferrous Met. Soc. China 26(2016) 2051-2057 Influence of Sn addition on mechanical properties of gas tungsten arc welded AM60 Mg alloy sheets Jun GOU1,2, Ai-tao TANG1,2, Fu-sheng PAN1,2,3... August 2015; accepted 11 April 2016 Abstract: The effects of Sn addition on the microstructure and mechanical properties of gas tungsten arc butt-welded Mg-6Al- 0.3Mn (AM60) (mass fraction, %) alloy......
resistance of tungsten carbide composite cladding coating on carbon steel substrate[J]. Materials Protection, 2015, 48(6): 21-23. [23] 张宝军. 铸造碳化钨/镍基钎料合金复合钎涂材料制备与性能研究[D]. 西安: 长安大学, 2007: 11-40. ZHANG.... Microstructure of composite coating of carbonite/Fe-based alloy[J]. Transactions of Materials and Heat Treatment, 2005, 26(6): 113-116. [37] ZHOU R, J Y, LU D. The effect of volume fraction of WC particles......
Article ID: 1003-6326(2005)05-1081-04 Double-sided gas tungsten arc welding process on TC4 titanium alloy GAO Hong-ming(高洪明), BAI Yan(白 岩), YANG Tian-dong(杨天东) (State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China) Abstract: TC4 titanium alloy was welded by double-sided gas tungsten arc welding(GTAW) process in comparison......