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Effect of united refining and modification on mechanical properties of A356 aluminium alloys ZUO Xiu-rong(左秀荣), ZHONG Zhi-guo(仲志国) Key Laboratory of Material Physics, Ministry of Education...), B, Sr and RE (cerium-riched mixtures of rare earth) on the mechanical properties of A356 aluminum alloys under T5 and T6 treatment condition were studied by OM, SEM, EDAX, etc. It is found......
Gamma TiAl alloys have been widely regarded as very demanding structural materials for applications in the aerospace and automotive industries owing to a set of favorable properties, such as low density... SEM specimen Based on the observation of in situ tensile test process of TiAl alloys in Fig.3, it can be concluded that there exists large stress concentration near the notched area and microcracks......
and 5.9%, respectively, at 800 °C. Key words: TiAl alloy; rapid solidification; spark plasma sintering; microstructure; mechanical properties 1 Introduction γ-based TiAl alloys are currently regarded.... The good balanced mechanical properties can be got through controlling the SPS parameters. Table 1 Compressive properties of sintered rapidly solidified TiAl based alloys and referenced alloys at room......
, ZHANG Kai-feng, WANG Guo-feng. Dependence of heating rate in PCAS on microstructures and high temperature deformation properties of γ-TiAl intermetallic alloys [J]. Intermetallics, 2010, 18(5): 834-840... and 10.13 MPa·m1/2, respectively. Key words: TiAl; Sm2O3; grain size; mechanical properties 1 Introduction Titanium aluminides exhibit numerous attractive properties for high-temperature structural......
Effects of Ag addition on mechanical properties and microstructures of Al-8Cu-0.5Mg alloy SONG Min(宋 旼), CHEN Kang-hua(陈康华), HUANG Lan-ping(黄兰萍) State Key Laboratory of Powder Metallurgy...; Abstract: The mechanical properties and microstructures of Al-8Cu-0.5Mg alloy with and without Ag addition were studied......
on the microstructures and mechanical properties of Ti-17Al-27Nb alloy. Therefore, the chemical compo- sitions of two alloys are Ti-17Al-27Nb and Ti-17Al- 27Nb-0.85Y. 3.2 Microstructures of alloys... on the microstructures and mechanical properties of Ti-17Al-27Nb alloy were studied. The as-cast microstructures of Ti-17Al-27Nb alloy with 0.85%Y(mole fraction) addition were refined and the tensile......
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, HUANG Bai-yun, HE Yue-hui. Relationships among technologies, microstructures and mechanical properties of TiAl-based alloys[J]. The Chinese Journal of Nonferrous Metals, 2001, 11(4): 527-540. [18...;Mechanical properties of TiAl alloy rolling sheet at room and high temperature 2.2 显微组织 铸锭冶金Ti-45Al-7Nb-0.3W合金轧制板材的显微组织如图1所示.图1(a)和1(b)所示分别为板材RD-ND面和TD-ND面的金相显微组织,图1(c)和1(d)所示分别为其对应的SEM显微组织.由图1......
’an 710072, China Received 23 September 2009; accepted 30 January 2010 Abstract: The dynamic mechanical analyzer (DMA) was applied to investigate the damping properties of Mg-Cu based alloys. The results... the damping mechanisms due to its simple microstructures. Hence, in this work, the damping properties of Mg-Cu based alloys are systematically studied. Furthermore, a novel high damping of Mg-Cu-Si......
材经800 ℃拉伸变形后的显微组织,再结晶晶粒形成于片层之间. 图4 不同状态时TiAl基合金的显微组织 Fig.4 Microstructures of TiAl based alloys at different states: (a) Hipped TiAl alloy; (b) Rolled sheet; (c) Rolled sheet... and mechanical properties of dual-phase TiAl alloys [J]. Intermetallics, 1998(6): 653-661. [14] KIM J H, HA T K, CHANG Y W, LEE C S. High temperature deformation behavior of a γ-TiAl alloy determined......