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文章编号: 1004-0609(2005)06-0836-06 添加微量硼对TiAl合金持久性能的影响 李臻熙, 曹春晓 (北京航空材料研究院, 北京 100095) 摘 要: 研究了Ti-47.5Al-2Cr-2Nb合金中添加微量硼对合金760℃, 275MPa持久性能的影响. 结果表明: 在同样的热处理制度下, 添加0.2%(摩尔分数)硼能显著提高合金的持久寿命; 尤其对于全片组织, 其持久寿命由150.0h提高到460.5h, 这主要归因于, 添加微量元素硼抑制了连续冷却转变过程中魏氏片层束和羽毛状片层束在片层晶粒内的形成, 从而提高了全片层组织的热稳定性. 关键词: TiAl合金; 硼; 持久性能; 组织稳定性 中图分类号: TG146 ......
J. Cent. South Univ. (2020) 27: 2530-2537 DOI: https://doi.org/10.1007/s11771-020-4478-8 Microstructure and hot corrosion resistance of Si-Al-Y coated TiAl alloy LI Yong-quan(李涌泉)1, 2, XIE Fa-qin(谢...’an 710072, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: In order to obtain a high-performance surface on TiAl alloy that can meet......
Trans. Nonferrous Met. Soc. China 31(2021) 193-206 Improving hot corrosion resistance of aluminized TiAl alloy by anodization and pre-oxidation Yuan-tao HU1,2, Lei ZHENG3, Hao-jie YAN1,2, Lian-kui..., Zhejiang University of Technology, Hangzhou 310014, China; 3. Institute of Defense Engineering, AMS, PLA, Beijing 100850, China Received 3 March 2020; accepted 12 October 2020 Abstract: To shield TiAl alloy......
of β-containing microstructure in γ-TiAl alloys. Fe addition into the TiAl alloy is restricted to selected isothermal sections of the ternary phase diagram. Several cubic ternary and quasi-binary phases... in TiAl alloys, are the hexagonal Ti3Al with D019 structure, the cubic FeTi with B2 structure which is dissolved Al corresponding to (Fe,Al)Ti, and the ternary τ2 phase with the complex cubic D8a......
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TiAl基合金的组织演变 刘咏1,刘文胜1,黄伯云1,周科朝1,贺跃辉1,唐建成1 (1.中南大学) 摘要:针对TiAl基合金的显微组织控制,综述了TiAl基合金中几种常见的组织演变,着重论述了变形TiAl基合金在热处理过程中的晶粒长大及动力学分析,TiAl基合金在冷却时层状组织的移成和金属状TiAl基合金在高温时的非连续粗化这3种组织演变的研究现状和面临的问题. 关键词:TiAl基合金; 晶粒长大; 层状组织; 非连续粗化; [全文内容正在添加中] ......
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