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Microstructural and mechanical properties of Al-4.5wt% Cu reinforced with alumina nanoparticles by stir casting method
来源: 《International Journal of Minerals Metallurgy and Materials2013年第10期》——N.Valibeygloo R.Azari Khosroshahi R.Taherzadeh Mousavian
nanoparticles(aboutφ50 nm in size)were ball-milled with aluminum powders in a planetary ball mill for 5 h,and then the packets of milled powders were incorporated into molten Al-4.5wt%Cu......
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Expulsion characterization in resistance spot welding by means of a hardness mapping technique
来源: 《International Journal of Minerals Metallurgy and Materials2014年第9期》——H.Ghazanfari M.Naderi
of molten metal from the weld nugget which usually occurs due to applying a high current for a short welding time. Expulsion has a significant impact on the final yield strength of the weld, thus......
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Influence of FeO and sulfur on solid state reaction between MnO-SiO2-FeO oxides and an Fe-Mn-Si solid alloy during heat treatment at 1473 K
来源: 《International Journal of Minerals Metallurgy and Materials2015年第8期》——Cheng-song Liu Shu-feng Yang Kyung-ho Kim Jing-she Li Hiroyuki Shibata Shin-ya Kitamura
to the equilibrium with molten steel at 1873 K, excess oxygen still diffused from the oxides to solid steel during heat treatment at 1473 K and formed oxide particles. In addition, increasing the sulfur......
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Teeming stream protection using an argon shroud during casting of steel ingots
来源: 《International Journal of Minerals Metallurgy and Materials2017年第1期》——Chao-jie Zhang Yan-ping Bao Min Wang Le-chen Zhang
because air can easily flow into the teeming system and cause reoxidation of molten steel during teeming. By contrast, an argon shroud protection device seated on the top of the central trumpet......
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Effect of vanadium carbide on commercial pure aluminum
来源: 《International Journal of Minerals Metallurgy and Materials2017年第7期》——Hua-ping Sun Jun Wu Tian Tang Bo Fan Zheng-hua Tang
the casting temperature and holding time have little effect on the grain size. The refining efficiency of VC is better than that of Al5Ti1 B. The VC particles in molten aluminum act as nuclei and the grain......
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Molecular dynamics simulation of amorphous segregation in Ag-Rh alloys
来源: 《Rare Metals2003年第3期》——ZHANG Jingxiang and BIAN XiufangKey Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan , China
and the network formed by 1551-clusters in molten alloys would inhibit the crystallization and diffusion of atoms. A higher degree of 1551-clusters will be favorable to form metallic glasses.关键词:......
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Joining dissimilar metal magnesium and aluminum by laser
来源: 《Rare Metals2007年第S1期》——LIU Xujing State Key Laboratory of Material Surface Modification by Laser,Ion and Electronic Beams,Dalian University of Technology,Dalian ,China
by laser was analyzed.It is found that magnesium is swirled by laser and the weld pool forms down toward aluminum.The microstructure at the bottom of the molten pool was observed.The swirl made......
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Reaction procedure of a graphite fiber reinforced Ti-Al composite produced by squeeze casting-in situ reaction
来源: 《Rare Metals2010年第1期》——WU Gaohuia, LIU Yanmeia, XIU Ziyangb, JIANG Longtaoa, and YANG Wenshua a School of Materials Science and Engineering, Harbin Institute of Technology, Harbin , China b Research Academy of Science and Industry Technology, Harbin Institute of Technology, Harbin , China
at high temperature was discussed. As-cast material was prepared by pressing molten pure aluminum into a preform, which was composed of titanium particles and graphite fibers. The in situ reaction......
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Behaviors of fine bubbles in the shroud nozzle of ladle and tundish
来源: 《International Journal of Minerals Metallurgy and Materials2003年第4期》——Yanping Boo, Jianhua Liu, and Baomei XuMetallurgical Engineering School, University of Science and Technology Beijing, Beijing , China
and 1.53-3.16 mm respectively when the flow rates are 0.006-0.016 m3/s; the terminal velocities of fine bubbles in the water and molten steel within the tundish are 0.02-0.2 and 0.05-0.6 m/s.关键......
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Effect of Kovar alloy oxidized in simulated N2/H2O atmosphere on its sealing with glass
来源: 《International Journal of Minerals Metallurgy and Materials2008年第3期》——Dawei Luo Wenbo Leng Zhuoshen Shen School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing ,China
along the pins was higher,and corrosion of Kovar pins caused from the molten glass was transformed from uniform to the localized.关键词:......