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GH4133B合金組織特征及平衡相析出熱力學(xué)研究
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Microstructural Characteristics and Thermodynamic Calculation on Precipitated Phases of GH4133B Alloy
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    摘要:

    采用Thermo-Calc熱力學(xué)計(jì)算軟件，對(duì)GH4133B合金平衡析出相進(jìn)行模擬計(jì)算分析，并進(jìn)一步對(duì)該合金的顯微組織特征進(jìn)行觀察分析。結(jié)果表明，Ti、Al含量對(duì)γ'相析出影響嚴(yán)重，并給出了定量計(jì)算結(jié)果。C含量能影響M23C6的析出量，對(duì)其析出溫度沒有影響；而Cr含量則主要影響其析出溫度，對(duì)M23C6的析出量卻沒有影響。進(jìn)一步對(duì)Ti、Al含量對(duì)η相的析出進(jìn)行了計(jì)算分析，實(shí)驗(yàn)驗(yàn)證了時(shí)效過(guò)程中η相的析出及分布形態(tài)。

    Abstract:

    he equilibrium precipitated phases and non-equilibrium solidification of GH4133B alloy were studied by Thermo-Calc software, in order to find the theoretical foundation of heat treatment and hot work processing. The microstructure of the alloy was also observed. The results show that the quantitative calculated results of the precipitated temperature and mass fraction of g ￠ phase based on the effect Ti and Al content were acquired. The content of C can affect the M23C6’s mass fraction but have no influence on its precipitated temperature. The content of Cr has a main effect on the M23C6’s precipitated temperature but no influence on its mass fraction. Further study was done on the relation between the content of Ti & Al and the precipitation of η phase. The precipitation and distribution condition during aging treatment of η phase were also proofed by experiments.

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王曉輝,鄭 磊,張麥倉(cāng),董建新. GH4133B合金組織特征及平衡相析出熱力學(xué)研究[J].稀有金屬材料與工程,2011,40(6):1005~1009.[Wang Xiaohui, Zheng Lei, Zhang Maicang, Dong Jianxin. Microstructural Characteristics and Thermodynamic Calculation on Precipitated Phases of GH4133B Alloy[J]. Rare Metal Materials and Engineering,2011,40(6):1005~1009.]
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  • 收稿日期:2010-06-14
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