钴基高温合金和镍基高温合金中，强化相γ′ (Gamma-prime)相是至关重要的，关于其有序无序行为，至今尚未见报道，理论上有人采用Bragg-Williams 模型，但该模型具有缺陷，不能真实反应有序无序转变行为，与实验事实不符。在实验室长期研究探索的基础上，基于双亚晶格模型，和计算建立的端基的生成吉布斯自由能热力学数据库，我组外国博士生Hamid Ali发现钴基高温合金和镍基高温合金强化相γ′ (Gamma-prime)相奇特占位有序化行为，Co3Al基Y'(Gamma-prime)相原子占位具有突跳式的有序无序转变（一级相变），而Ni3Al基Y'(Gamma-prime)相具有占位恒定有序化特征。作为姊妹篇，连续发表在国际知名学术期刊上。

Hamid Ali, Rong Chen, Hailian Chen, Yan Zhao, Panhong Zhao, Shuwen Yang, Bo Wu, Jiansen Wen, Chubo Zhang, Liangji Weng, Tianliang Xie, Qi Cai,Longkun Zhang, Zhihan He, Qipeng Yao, Haifeng Zhang, Baisheng, Cuilian Wen, Maohua Lin, Yu Liu, Chunxu Wang, The Ordering Behavior of Co3Al-based γ′ Phase with L1₂ Structure Predicted by the Thermodynamic Model with Support of First-principles Calculations [J]. Materials Today Communications, 2022, 33, 104447. https://doi.org/10.1016/j.mtcomm.2022.104447.

Hamid Ali, Rong Chen, Bo Wu, Tianliang Xie, Liangji Weng,Jiansen Wen, Qipeng Yao, Longju Su, Yan Zhao, Panhong Zhao,Baisheng Sa, Yu Liu, Chunxu Wang, Hang Su, Asif Hayat,The site preference and doping effect on mechanical properties of Ni3Al-based γ′ phase in superalloys by combing first-principles calculations and thermodynamic model [J]. Arabian Journal of Chemistry, 2022, 15(11), 104278. https://doi.org/10.1016/j.arabjc.2022.104278.

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