PM-TiAl 基合金热处理及其性能
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华北电力大学


Heat Treatment and Performance of PM-TiAl Base Alloy
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    摘要:

    为了优化TiAl 合金的使用性能,本文研究了热等静压后的PM-TiAl 基合金经过热处理后显微组
    织的变化情况及力学性能,发现其在热处理温度为1 355益为全片层组织,在1 335益为双态组织。全片层组织
    常温下的抗拉强度为446 MPa,随着温度的升高而增加;屈服强度为386 MPa,随着温度的升高而降低。

    Abstract:

    In order to optimize the usability, microstructure and mechanical property of TiAl based alloy after
    hot isostatic pressing and hot treatment was studied. After heat鄄treatment of 1 355益, organization of TiAl based alloy
    transformed to full lamellar microstructure. After heat鄄treatment of 1 335益, organization of TiAl based alloy trans鄄
    formed to double pattern microstructure. Tensile strength of full lamellar TiAl under room temperature is 446 MPa,
    and will increase with temperature; yield strength of full lamellar TiAl under room temperature is 386 MPa, and will
    increase with temperature.

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马明珠. PM-TiAl 基合金热处理及其性能[J].宇航材料工艺,2012,42(5).

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