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V、Mo對(duì)β-γ TiAl合金α、β兩相相變的影響
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1.太原理工大學(xué) 材料科學(xué)與工程學(xué)院;2.太原理工大學(xué) 機(jī)械工程學(xué)院;3.衢州學(xué)院

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國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)51604191,51504163,51501100)


The effects of V、Mo on the transformations of α phase and β phase based on β/γ TiAl
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1.School of Materials Science and Engineering,Taiyuan University of Technology;2.School of mechanical engineering,Taiyuan University of Technology

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    摘要:

    以Ti-Al-M三元合金(M為V,Mo強(qiáng)β相穩(wěn)定元素)為對(duì)象,研究了合金元素V、Mo對(duì)鑄態(tài)組織以及不同熱處理?xiàng)l件下顯微組織的影響。V、Mo元素可以改變傳統(tǒng)TiAl合金的凝固路徑,避開(kāi)包晶反應(yīng),還能將β相保留至室溫。在合金淬火組織中,增加V、Mo元素含量可以發(fā)生馬氏體轉(zhuǎn)變。在兩步熱處理過(guò)程中,增加Mo元素含量,合金更傾向于發(fā)生α→β＋γ及β→β＋γ相變。

    Abstract:

    Based on Ti-Al-M alloys , the effect of V、Mo elements on as-cast microstructure as well as the microstructure of different heat treatment processings is studied. V、Mo elements can change the solidification path of conventional γ- TiAl, avoid peritectic reaction, and preserve β phase to room temperature. The martensite mode will be observed in the microstructure subjected to water quenching condition, with increasing the content of V、Mo elements. During two-step heat treatment procedure, with Mo addition, alloys are prone to the transformation reaction of α→β＋γ as well as β→β＋γ.

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徐萌,張樹(shù)志,張長(zhǎng)江,林鵬,韓建超,朱冬冬. V、Mo對(duì)β-γ TiAl合金α、β兩相相變的影響[J].稀有金屬材料與工程,2019,48(1):183~189.[Xu Meng, Zhang Shuzhi, Zhang Changjiang, Lin Peng, Han Jianchao, Zhu Dongdong. The effects of V、Mo on the transformations of α phase and β phase based on β/γ TiAl[J]. Rare Metal Materials and Engineering,2019,48(1):183~189.]
DOI：10.12442/j. issn.1002-185X.20170433

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  • 收稿日期:2017-05-24
  • 最后修改日期:2017-09-02
  • 錄用日期:2017-09-12
  • 在線發(fā)布日期: 2019-02-18
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