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mechanical properties and overall performances of alloys, homogenization heat treatment is a primary and important step before processing [13, 14]. Moreover, different variations of the homogenization temperature and homogenization time have a great influence on the dissolution of the non-equilibrium phase. SHI et al [15] studied the influence of homogenization treatment on microstructure of DC cast......
Homogenization heat treatment of Mg-7.68Gd-4.88Y-1.32Nd-0.63Al-0.05Zr alloy张国栋,李兴刚,马鸣龙,李永军,石国梁,袁家伟,张奎State Key Laboratory for Fabrication and Processing of Non-ferrous Metals, Beijing General... investigated both in the as-cast condition and after homogenization heat treatment from 535 to 555 oC in the time range 0–48 h by optical microscopy, scanning electron microscopy and hardness measurement......
Homogenization heat treatment of Mg-7.68Gd-4.88Y-1.32Nd-0.63Al-0.05Zr alloy张国栋,李兴刚,马鸣龙,李永军,石国梁,袁家伟,张奎State Key Laboratory for Fabrication and Processing of Non-ferrous Metals, Beijing General... investigated both in the as-cast condition and after homogenization heat treatment from 535 to 555 oC in the time range 0–48 h by optical microscopy, scanning electron microscopy and hardness measurement......
HOMOGENIZATION TREATMENT OF Mg-Al-Zn (MM) MAGNESIUM ALLOY INGOTS K.Yu1,W.X.Li1 (1.College of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract:The Mg-Al.... The optimum annealing temperatureis 723K and the time is 12h. Key words:magnesium alloy; homogenization; diffusion; [全文内容正在添加中] ......
Effect of homogenization treatment on microstructure and hot workability of high strength 7B04 aluminium alloy WANG Tao(王 涛)1, 2, YIN Zhi-min(尹志民)1, SUN Qiang(孙 强)2 1. School of Materials Science... treatment on microstructure, overburnt temperature and hot rolling plasticity of high strength 7B04 aluminium alloy were investigated. Under the condition of homogenization at 470 ℃, the starting melting......
J. Cent. South Univ. Technol. (2007)04-0452-04 DOI: 10.1007/s11771-007-0088-y Effect of homogenization treatment on microstructure and properties of Al-Mg-Mn-Sc-Zr alloy NIE Bo(聂 波)1,2... homogenization treatment processing is holding at 300-350 ℃ for 6-8 h. Key words: Sc; Zr; Al-Mg-Mn alloy; homogenization; Al3(Sc, Zr) precipitation; microstructures; tensile properties; hardness......
Microstructural evolution of high strength 7B04 ingot during homogenization treatment LI Nian-kui(李念奎), CUI Jian-zhong(崔建忠) Key Laboratory of Electromagnetic Processing of Materials, Ministry... ingot of 7B04 super-high strength aluminum alloy during homogenization treatment was studied with metallographic analysis, scanning electron microscopy(SEM), energy spectroscopy and differential......
was measured. The results show that, the alloy is composed of α phase, β phase, Mg17Al12 and AlLi. RE added into the alloy is solved in α phase and β phase completely. After homogenization heat treatment... was poured into a permanent mould. The homogenization heat treatment was carried out in vacuum electric resistance furnace. Microstructure of alloy was measured by optical metallography(OM), as well......
exceeds 0.8%. The β and γ phases can be eliminated effectively by subsequent homogenization heat treatment at the temperature above Tα. The evolution of the strength, microhardness and ductility... and microhardness obviously, which can be improved effectively by subsequent homogenization heat treatment. Key words: TiAl alloy; β phase; microstructure; mechanical properties; homogenization treatment 1......
Homogenization heat treatment of 2099 Al–Li alloyFei Zhang1,2,Jian Shen1,Xiao-Dong Yan1,Jian-Lin Sun2,Xiao-Long Sun1,Yin Yang11. Nonferrous Metals Processing Division, General Research Institute... distribute unevenly from the grain boundary to inside. The low-melting point nonequilibrium eutectic phases dissolve into the matrix during the first-step homogenization, whereas the melting point......