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热处理对钛合金Ti84Al11FeMo4组织和性能的影响

张雪峰 陈敏 刘许旸 高友智 韦良晓 蔡俊豪 倪梓洁 陈新才

张雪峰, 陈敏, 刘许旸, 高友智, 韦良晓, 蔡俊豪, 倪梓洁, 陈新才. 热处理对钛合金Ti84Al11FeMo4组织和性能的影响[J]. 钢铁钒钛, 2022, 43(6): 66-70. doi: 10.7513/j.issn.1004-7638.2022.06.010
引用本文: 张雪峰, 陈敏, 刘许旸, 高友智, 韦良晓, 蔡俊豪, 倪梓洁, 陈新才. 热处理对钛合金Ti84Al11FeMo4组织和性能的影响[J]. 钢铁钒钛, 2022, 43(6): 66-70. doi: 10.7513/j.issn.1004-7638.2022.06.010
Zhang Xuefeng, Chen Min, Liu Xuyang, Gao Youzhi, Wei Liangxiao, Cai Junhao, Ni Zijie, Chen Xincai. Effect of heat treatment on microstructure and properties of Ti84Al11FeMo4 titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 66-70. doi: 10.7513/j.issn.1004-7638.2022.06.010
Citation: Zhang Xuefeng, Chen Min, Liu Xuyang, Gao Youzhi, Wei Liangxiao, Cai Junhao, Ni Zijie, Chen Xincai. Effect of heat treatment on microstructure and properties of Ti84Al11FeMo4 titanium alloy[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(6): 66-70. doi: 10.7513/j.issn.1004-7638.2022.06.010

热处理对钛合金Ti84Al11FeMo4组织和性能的影响

doi: 10.7513/j.issn.1004-7638.2022.06.010
基金项目: 四川省重点研发项目(2020 YFG0423, 2022 YFG0286)。
详细信息
    作者简介:

    张雪峰,1965年出生,男,四川仁寿人,教授,长期从事钒钛材料制备方面等基础研究工作,E-mail:532256335@qq.com

    通讯作者:

    刘许旸,1988年出生,女,副教授,主要从事钒钛材料制备及性能表征等相关研究工作,E-mail:liuxuyang@cqu.edu.cn

  • 中图分类号: TF823

Effect of heat treatment on microstructure and properties of Ti84Al11FeMo4 titanium alloy

  • 摘要: 通过d电子理论设计出新型两相钛合金Ti84Al11FeMo4,分析了物相组成随温度的变化关系。结合热力学计算结果,分别研究了700、770 ℃以及850 ℃不同时效温度下钛合金的微观组织与力学性能的演化关系。结果表明,随着时效处理温度的提高,Ti84Al11FeMo4钛合金微观组织中β相的含量逐渐增多。当时效温度增加到850 ℃时,β析出相的含量最多,且在粗β相间分布着大量细小尺寸的β相。Ti84Al11FeMo4钛合金经不同时效温度处理后表现出不同的力学性能,在700 ℃和770 ℃下时效处理后可显著提高钛合金的压缩强度,而在850 ℃下时效后可以实现钛合金的强度和塑性的同步提升。
  • 图  1  Ti84Al11FeMo4合金的热力学计算相图

    Figure  1.  Calculated thermodynamic phase diagram of Ti84Al11FeMo4 alloy

    图  2  Ti84Al11FeMo4合金在不同时效温度下的微观形貌

    (a) 铸态;(b)样品1; (c) 样品2 ; (d) 样品3

    Figure  2.  Micromorphology of Ti84Al11FeMo4 alloy obtained at different aging temperatures

    图  3  Ti84Al11FeMo4合金中合金元素在两相中的分布情况

    Figure  3.  Distribution of alloying elements in two phases in Ti84Al11FeMo4 alloy

    图  4  Ti84Al11FeMo4合金在不同时效温度下的应力应变曲线

    Figure  4.  Stress-strain curves of Ti84Al11FeMo4 alloy obtained at different aging temperatures

    图  5  Ti84Al11FeMo4合金在不同时效温度下的断口形貌

    (a) 铸态;(b)样品1;(c) 样品2;(d) 样品3

    Figure  5.  Fracture morphologies of Ti84Al11FeMo4 alloy obtained at different aging temperatures

    表  1  Ti中不同元素Bo、Md参数值

    Table  1.   Bo and Md parameter values of different elements in Ti alloy

    元素BoMd
    Ti3.5132.447
    Fe3.4280.969
    Al3.2972.2
    Mo3.7591.961
    下载: 导出CSV

    表  2  热处理制度及热力学理论物相组成

    Table  2.   Heat treatment system and thermodynamic theory phase composition

    序号固溶温度/℃时效温度/℃物相组成/%
    α-Tiβ-Ti
    样品1950+WQ700+WQ65
    35
    样品2950+WQ770+WQ50
    50
    样品3950+WQ850+WQ20
    80
    注:WQ表示水冷。
    下载: 导出CSV

    表  3  不同时效温度下Ti84Al11FeMo4合金压缩强度和断裂塑性

    Table  3.   Compressive strength and fracture ductility of Ti84Al11FeMo4 alloy obtained at different aging temperatures

    样品压缩强度/MPa断裂塑性/%
    铸态136620
    样品1171222
    样品2169518.9
    样品3155824
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-06-21
  • 刊出日期:  2023-01-13

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