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β相凝固TiAl合金的制备、加工、组织、性能及工业应用研究进展

陈玉勇 吴敬玺

陈玉勇, 吴敬玺. β相凝固TiAl合金的制备、加工、组织、性能及工业应用研究进展[J]. 钢铁钒钛, 2021, 42(6): 1-16. doi: 10.7513/j.issn.1004-7638.2021.06.001
引用本文: 陈玉勇, 吴敬玺. β相凝固TiAl合金的制备、加工、组织、性能及工业应用研究进展[J]. 钢铁钒钛, 2021, 42(6): 1-16. doi: 10.7513/j.issn.1004-7638.2021.06.001
Chen Yuyong, Wu Jingxi. Research and advances in processing, working, microstructure, properties and industrial application of β-solidifying TiAl alloy[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 1-16. doi: 10.7513/j.issn.1004-7638.2021.06.001
Citation: Chen Yuyong, Wu Jingxi. Research and advances in processing, working, microstructure, properties and industrial application of β-solidifying TiAl alloy[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(6): 1-16. doi: 10.7513/j.issn.1004-7638.2021.06.001

β相凝固TiAl合金的制备、加工、组织、性能及工业应用研究进展

doi: 10.7513/j.issn.1004-7638.2021.06.001
详细信息
    作者简介:

    陈玉勇(1956—),男,教授,博士生导师,主要从事TiAl合金及钛合金研究,E-mail:yychen@hit.edu.cn

  • 中图分类号: TF823,TG146.23

Research and advances in processing, working, microstructure, properties and industrial application of β-solidifying TiAl alloy

  • 摘要: β相凝固TiAl合金作为第三代TiAl基金属间化合物,凭借其突出的热变形优势,在航空航天及汽车制造等高端领域具有广阔的应用空间。然而,高温β相的引入在提高合金热变形能力的同时也使得组织演变和性能优化更为复杂。同时,受合金体系及本征脆性的影响,工业化进程相对迟缓。通过综述典型β相凝固TiAl合金的制备及加工工艺、组织与性能研究进展及工业化现状,系统分析了合金制备及加工工艺和成本优势,阐明了合金体系热变形、热处理及合金化对组织演变和性能优化的作用机制,指出合金工业化发展的限制环节及未来发展趋势。
  • 图  1  β相凝固TiAl合金的制备及加工

    Figure  1.  Processing and working of β-solidifying TiAl alloy

    图  2  典型β相凝固TiAl合金的铸态组织

    Figure  2.  Typical as-cast microstructure of β-solidifying TiAl alloys

    图  3  典型β相凝固TiAl合金的热变形组织

    Figure  3.  Typical hot deformed microstructure of β-solidifying TiAl alloys

    图  4  典型β相凝固TiAl合金的热处理组织

    Figure  4.  Typical heat treatment microstructure of β-solidifying TiAl alloys

    图  5  B、Y、C对β相凝固TiAl合金微观组织的影响

    Figure  5.  Effects of B, Y and C on microstructure of β-solidifying TiAl alloys

    图  6  V、Al、Nb对β相凝固TiAl合金微观组织的影响

    Figure  6.  Effects of V, Al and Nb on microstructure of β-solidifying TiAl alloys

    图  7  GTFTM发动机主要部件及最新应用现状

    Figure  7.  Main components and latest application status of GTFTM engine

    表  1  典型TiAl合金的热变形抗力及最佳热加工窗口

    Table  1.   Hot deformation resistance and optimal working windows of typical TiAl alloys

    合金体系制备方法变形抗力 (1100 ℃,0.01 s−1)/MPa最佳热加工窗口
    变形温度/℃应变速率/ s−1
    Ti-48Al-2Cr-2Nb铸态39512000.01
    Ti-47.5Al-2Cr-2NbPM2341150~12000.01~0.1
    Ti-43Al-9V-Y铸态1021200~12250.01~0.05
    Ti-43Al-9V-0.3YPM511100~1200≤1
    Ti-44Al-5Nb-1.0Mo铸态220
    Ti-44Al-8Nb-(W, B, Y)锻态3191180~12400.01~0.3
    Ti-44Al-5Nb-(Mo, V, B)铸态137
    Ti-43Al-3Mn-2Nb-0.1Y铸态16212000.01
    下载: 导出CSV

    表  2  典型TiAl合金的力学性能

    Table  2.   Mechanical properties of typical TiAl alloys

    合金体系制备方法室温拉伸性能高温拉伸性能
    抗拉强度/MPa延伸率/%抗拉强度/MPa延伸率/%温度/℃
    Ti-48-2-2铸态378.00.39
    Ti-48-2-2(PM)轧态424.30.89505.53.24723
    TNM-B1轧态880.71.04823.75.52673
    Ti-44Al-8Nb轧态975.00.24632.033.2800
    Ti-42Al-9V-0.3Y铸态530.00.63509.01.80700
    Ti-42Al-9V-0.3Y挤压1090.01.47837.07.30700
    Ti-43Al-9V-0.2Y轧态945.00.50550.080.0750
    Ti-43Al-2Cr-1.5Mn锻态689.40.83449.75.98750
    下载: 导出CSV

    表  3  典型TiAl合金在不同条件下的氧化增重

    Table  3.   Oxidation weight gain of typical TiAl alloys under different conditions mg/cm2

    温度/℃Ti-48-2-2TNM-B1Ti-45Al-5.4V-3.6NbTi-45Al-8.5Nb
    20 h40 h100 h20 h40 h100 h20 h40 h80 h20 h40 h100 h
    600 0.030 0.045 0.052 0.079 0.040 0.051
    700 0.033 0.045 0.082 0.079 0.071 0.071
    800 0.911 1.137 1.540 0.243 0.324 0.530 6.178 8.404 11.571
    900 1.584 1.831 2.154 1.508 1.832 2.358 0.428 0.586 1.087
    1000 0.785 1.157 2.270
    下载: 导出CSV
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  • 收稿日期:  2021-05-24
  • 刊出日期:  2021-12-31

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