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《Journal of University of Science and Technology Beijing》 2007-03
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Duplex microstructure transformation of a cast high-Nb containing TiAl alloy

PENG Lingjian, WANG Yanli, LIN Junpin, CHEN GuoliangState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijng, Beijing 100083, China  
The as-cast structure and microstructure obtained after heat-treatment in the α+γ field of a Ti-46Al-8Nb-2Mn-0.2B alloy were studied. Optical and SEM observations show that the γ phase segregation region is not the grain boundary of the alloy but part of the α+γ lamella. The Al content at the γ phase segregation region is a little more than the α+γ lamella matrix, but it can play an important role in stabilizing the lamella and does harm to the break-up at the γ phase segregation region. By obtaining near γ microstructure firstly in the alloy and then heat-treating it in the middle region of the α+γ field, the duplex microstructure with a grain size of 40 μm can be formed, but a little of β phase still exists.
【Fund】: 教育部新世纪优秀人才支持计划资助项目(No.NCET-04-01017)
【CateGory Index】: TG27
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【References】
Chinese Journal Full-text Database 1 Hits
1 WANG Yan-li,LI Shi-lei,PENG Ling-jian,LIN Jun-pin,CHEN Guo-liang State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China;Effect of Mn content on the microstructure and mechanical properties of cast high Nb containing TiAl alloys[J];北京科技大学学报;2009-02
【Citations】
Chinese Journal Full-text Database 3 Hits
1 ZHENG Rui\|ting \{1,2\}, ZHANG Yong\|gang 2, CHEN Chang\|qi 2, CHENG Guo\|an 1 (1 Key Laboratory of Beam Technology and Materials Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China;2 Department of Materials Science and Engineering, Beijing University of Aeronautic & Astronautic, Beijing 100083, China);Duplex Microstructure Control in a TiAl-Based Alloy[J];金属热处理学报;2003-01
2 ZHENG Rui ting,ZHANG Yong gang,CHEN Chang qi (Department of Material Science and Engineering,Beijing University Aeronautics & Astronautics,Beijing 100083,China);Effect of Circle Heat Treatment on Microstructure of Duplex γ-TiAl Alloys[J];金属热处理;2001-10
3 Chen Guohang(State Key Laboratory for Advanced Metals and Materials .University of Science and Technology Beijing,Beijing 100083 China);R&D Status and Prospect on the Ordered Structural Intermetallics[J];材料导报;2000-09
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 WANG Fuxin;LUO Liangshun;WANG Liang;ZHANG Donghui;LI Xinzhong;SU Yanqing;GUO Jingjie;FU Hengzhi;National Key Laboratory for Precision Hot Processing of Metals, School of Materials Science and Engineering,Harbin Institute of Technology;;EFFECT OF ALLOY COMPOSITION AND COOLING RATE ON THE GROWTH MORPHOLOGY OF PRIMARY Al_2Cu PHASE IN Al-Cu ALLOY DURING SOLIDIFICATION[J];金属学报;2016-03
2 Shang Haikun;Huang Yongan;Hou Yapeng;Zhang Laiqi;Lin Junpin;Hebei Huabei Diesel Engine Co.,Ltd.;State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing;;Effects of Si content on microstructure and properties of intermetallic compounds for Mo-Si binary system[J];金属热处理;2015-08
3 QIAN Li;HU Yan;YE Ying-hua;SHEN Rui-qi;School of Chemical Engineering, Nanjing University of Science and Technology;;Preparation of Al_2Cu Alloys at Low Temperature[J];火工品;2015-03
4 QIN Yonghe;QIAO Yingjie;College of Materials and Chemical Engineering,Harbin Engineering University;The 49thResearch Institute,China Electronics Technology Group Corporation;;The first principle calculation for structure and mechanical property of Sm,La doping with TiAl[J];哈尔滨工业大学学报;2015-05
5 FENG De;DAI Shuhua;MI Yangyang;School of Materials,Inner Mongolia University of technology;;Microstructure and Mechanical Properties of Al_3Nb-Aluminium Composite[J];热加工工艺;2015-06
6 WANG Hao;YANG Jun-jun;LIU Guan-ying;WANG Fan;Advanced Technology & Materials Co.,Ltd.,China Iron & Steel Research Institute Group;Beijing Engineering Research Center of Special Powder Metallurgy Materials and Technology;;Experimental research on corrosion resistance of Fe_3Al and stainless steel porous material in H_2S-containing gas environment[J];粉末冶金工业;2014-06
7 FU Xiu-hua;WU Guan-qi;LIU Dong-mei;KOU Yang;HAN Fang;School of Optoelectronic Engineering,Changchun University of Science and Thchnology;;Fabrication of Multifunction Anti-oil Antireflection Coatings[J];光子学报;2014-08
8 HE Jin;ZHOU Han;ZHU Wenqi;LU Xionggang;LI Chonghe;Shanghai Key Laboratory of Modern Metallurgy & Materials Processing,Shanghai University;Shanghai Special Casting Engineering Technology Research Center;;Development of Refractories Used in Investment Casting and Directional Solidification of TiAl Alloys[J];材料导报;2014-15
9 JIANG Tao;LV Qiao-fei;ZHANG Wei-na;LI Shuai;YAN Nan-ping;LIU Le;School of Materials Science and Engineering,Xi'an Shiyou University;;Fabrication Process,Research and Development Trend of the Fe-Al Intermetallics Compounds Materials[J];装备制造技术;2014-07
10 YAO Hairui;ZHENG Xijun;ZHANG Jun;LI Jingjing;BAI Xiaokang;Chemical Engineering &Pharmaceutics School,Henan University of Science & Technology;;Synthesis of Bimetal Compound FeNi_3 and Evaluation of Its Catalytic Activity to NaBH_4 Hydrolysis[J];河南科技大学学报(自然科学版);2014-05
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 PENG Lingjian, WANG Yanli, LIN Junpin, CHEN GuoliangState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijng, Beijing 100083, China;Duplex microstructure transformation of a cast high-Nb containing TiAl alloy[J];北京科技大学学报;2007-03
2 RAO Guang-bin, LIU Kui, HAN En-hou, KE Wei (Institute of Metal Research, Chinese Acadamy of Sciences, Shenyang 110016, China);Mechanism of grain refinement effect of boron addition on γ-TiAl based alloys[J];中国有色金属学报;2004-S1
3 ZHENG Rui ting, GUO Fu an, ZHANG Yong gang, CHEN Chang qi (Department of Materials Science and Engineering, Beijing University Aeronautics & Astronautics, Beijing 100083, P.R.China) [;Fracture mechanics of tensile ductility of TiAl alloy with duplex structure[J];中国有色金属学报;2001-S2
4 Chen Guohang(State Key Laboratory for Advanced Metals and Materials .University of Science and Technology Beijing,Beijing 100083 China);R&D Status and Prospect on the Ordered Structural Intermetallics[J];材料导报;2000-09
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