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binder, mechanical properties of TiAl-based alloys and surface reaction layer between TiAl-based alloys and ceramic mould shells were studied. 2 Experimental 2.1 Materials The content of alloying elements, especially Al element, has a large effect on properties of TiAl based alloys. During solidification of TiAl alloys, after being added alloying elements, the γ-phase area changes, the content......
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Trans. Nonferrous Met. Soc. China 22(2012) 53-59 Comparative studies on as-cast microstructures and mechanical properties between Mg-3Ce-1.2Mn-0.9Sc and Mg-3Ce-1.2Mn-1Zn magnesium alloys YANG..., China Received 24 December 2010; accepted 15 April 2011 Abstract: The as-cast microstructures and mechanical properties of Mg-3Ce-1.2Mn-0.9Sc and Mg-3Ce-1.2Mn-1Zn magnesium alloys were investigated......
Microstructures and properties of Sn-Ag-Cu lead-free solder alloys containing La ZHOU Ying-chun(周迎春), PAN Qing-lin(潘清林), HE Yun-bin(何运斌), LIANG Wen-jie(梁文杰) LI Wen-bin(李文斌), LI Yun-chun(李运春... on the microstructures and properties of lead-free solder alloys was strongly required. In this study, the effects of trace amounts of La on melting behaviors, microstructures, tensile properties, and microhardness......
: The microstructure evolution and mechanical properties of the as-deposited γ-TiAl-based alloy specimen fabricated via laser melting deposition and as-annealed specimens at different temperatures were...-treated the welded specimens, and analyzed the effect of heat treatment on microstructure and mechanical properties. Compared with Ti3Al-based alloy and Ti2AlNb- based alloy, γ-TiAl alloy has lower density......
, LI S J, CHEN G L. Effects of Nb and Al on the microstructures and mechanical properties of high Nb containing TiAl base alloys [J]. Intermetallics, 2002, 10: 653-659. [7] OUYANG Si-hui, LIU Bin, LIU..., MAYER S. Carbon distribution in multi-phase γ-TiAl based alloys and its influence on mechanical properties and phase formation [J]. Acta Materialia, 2015, 94: 205-213. [15] NISHIKIORI S, MATSUDA M......
and applications of intermetallic γ-TiAl-based alloys [J]. Advanced Engineering Materials, 2000, 2(9): 551-570. [4] LIU C T, MAZIASZ P J. Microstructural control and mechanical properties of dual-phase TiAl alloys [J]. Intermetallics, 1998, 6(7-8): 653-661. [5] LIU Z C, LIN J P, LI S J, CHEN G L. Effects of Nb and Al on the microstructures and mechanical properties of high Nb containing TiAl base alloys......
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. Key words: titanium aluminides; TiB2; cooling rate; microstructure evolution; mechanical properties 1 Introduction Compared with titanium alloy and nickel- based alloy, TiAl-based alloy exhibits... powder metallurgy processed TiAl-based intermetallics [J]. Materials Letters, 2004, 58: 2067-2072. [13] WU Y, HWANG S K. Microstructural refinement and improvement of mechanical properties and oxidation......
, using the hot pressing reaction synthesis technique. The effect of the Eu2O3 doping on microstructures and mechanical properties of the Al2O3/TiAl composites was analyzed by thermal analysis (DSC), X...; Eu2O3 doping; composites; microstructure; mechanical properties TiAl金属间化合物具有轻质,耐磨及耐高温等优良性能,使用温度可达到700~1 000 ℃,在航空航天高温结构材料领域具有广阔的应用前景[1-4].但室温 塑性低,加工难度大的缺点限制了TiAl金属间化合物的应用.向基体材料中引入第二增强相(如Al2O3和TiC等)是......