Prediction of grain boundary chemistry in multicomponent alloys
Prediction of grain boundary chemistry in multicomponent alloys
复制标题
多元合金中晶界化学的预测
DOI:
10.1080/27660400.2022.2112915
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Toshiyuki Koyama
中科院分区:
文献类型:
--
作者:
Masataka Funamoto;Yusuke Matsuoka;Yuhki Tsukada;Toshiyuki Koyama
Hillert’s grain-boundary-phase (GBP) model is employed for predicting grain boundary (GB) chemistry in multicomponent alloys. The GB is approximated as a thin layer of a homogeneous phase with a constant thickness and its own Gibbs energy. The GB composition is computed to minimize the Gibbs energy of the mixture of a grain phase and the GBP; the Gibbs energy of liquid phase is assigned to that of the GBP. The calculation of phase diagram (CALPHAD) databases are employed to calculate the Gibbs energy of a phase of interest as a function of composition and temperature. To verify the calculation results’ validity, the predicted GB chemistry was compared with experimental data from previous research for nickel-based superalloys, an austenitic stainless steel, and a high-entropy alloy. It is demonstrated that the method combining Hillert’s GBP model and CALPHAD databases is effective for predicting the equilibrium solute segregation to stationary random high-angle GBs in multicomponent alloys, enabling the advanced compositional design of materials for GB segregation engineering.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
S. Fedotova;E. Kuleshova;D. Maltsev;M. Saltykov
通讯作者:
M. Saltykov
影响因子:
9.4
作者:
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通讯作者:
Dlouhy, Antonin
DOI:
10.2320/jinstmet.j2020005
发表时间:
2020
影响因子:
0.5
作者:
伊藤一真;澤田英明;尾方成信
通讯作者:
尾方成信
影响因子:
9.4
作者:
Ebner, Anna Sophie;Jakob, Severin;Razumovskiy, Vsevolod, I
通讯作者:
Razumovskiy, Vsevolod, I
影响因子:
3.1
作者:
Hata Kuniki;Takamizawa Hisashi;Hojo Tomohiro;Ebihara Kenichi;Nishiyama Yutaka;Nagai Yasuyoshi
通讯作者:
Nagai Yasuyoshi