摘要
采用Thermo-Calc热力学计算软件,对C-276合金(%:≤0.01C、14.5～16.5Cr、15.0～17.0Mo、≤2.5Co、3.0～4.5W、4.0～7.0Fe、余Ni)平衡析出相γ、M_6C、P、μ和非平衡凝固进行了模拟计算分析。结果表明,合金凝固过程中Mo、Cr偏析比较严重;随合金中Cr含量增加,基体γ相中Cr含量明显增加,而γ相中Mo含量明显降低;但合金中Mo含量的变化对γ相中Mo、Cr含量几乎没有影响,因合金初始Cr、Mo含量的提高增加了P相析出量,P相中主要元素为Mo,P相的增加减少基体γ相中的Mo含量。
Simulated calculation and analysis on equilibrium precipitated phases γ, M6C, P, IX and non-equilibrium solidification of alloy C-276 （ % ： ≤0. 01 C, 14. 5 - 16. 5Cr, 15.0 - 17.0Mo, ≤2. 5Co, 4. 0 - 7.0Fe, balance Ni） have been carried by using Thermo-Calc thermodynamic calculation software. Results show that during solidification of alloy the segregation of Mo and Cr is serious ; and with increasing Cr content in alloy, the Cr content in matrix T phase increases obviously, while the Mo content in γphase decreases markedly; but the change of Mo content in alloy nearly hasn＇t influence on Mo and Cr content in γphase, because with increasing initial Cr and Mo, the precipitated amount of P phase increases, and the Mo is main element of P phase, with increasing the amount of P phase, the Mo content in matrix γphase decreases.
出处
《特殊钢》
北大核心
2009年第5期7-9,共3页
Special Steel
关键词
镍基合金C-276
析出相
热力学计算
Nickel Base Alloy C-276, Precipitated Phases, Thermodynamic Calculation
