基于Calphad方法计算钛合金β相转变温度  

Calculation of Beta Transus Temperature of Titanium Alloys by Calphad Method

作　　者：王树森 林崇茂 胡仁民 吴广新[1,3] Ali Wajid 鲁雄刚 李重河[1,3] 

机构地区：[1]省部共建高品质特殊钢冶金与制备国家重点实验室上海市钢铁冶金新技术开发应用重点实验室上海大学材料科学与工程学院,上海200072 [2]宝钢特钢有限公司,上海200940 [3]上海特种铸造工程技术研究中心,上海201605

出　　处：《稀有金属材料与工程》2018年第1期181-186,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51225401,51374142);上海市科委基金项目(14JC1491400);国家重点基础研究发展计划资助项目(2014CB643403)

摘　　要：通过Calphad方法优化了Ti-Al-Fe-Mn四元系数据库,利用此数据库计算了4个子三系相关相变温度,并与已有的实验数据进行了对比和讨论,结果符合很好,证明了由此四元数据库计算各相变温度的可靠性。再通过该数据库计算了Ti-Al-Fe-Mn四元系一系列合金的α+β/β相变温度,并将计算结果与前人的经验公式计算结果进行了对比,在此基础上建立了更准确的计算该体系相变温度的经验公式。上述结果可为钛合金相变温度的确定提供一种可行的方法。The Ti-A1-Fe-Mn thermodynamic database was optimized by Calphad method. Based on this database the beta transus temperatures of four ternary systems in Ti-A1-Fe-Mn system were calculated and they were in good agreement with experimental values. In this way the reliability of Ti-A1-Fe-Mn quaternary systems was verified. Then a＋fl/fl phase transformation temperatures of a series of titanium alloys were calculated by Calphad method and compared with values calculated by previous formulas. In addition, a more accurate formula was established based on the values calculated. The results may provide a feasible way for the determination of titanium beta transus temperature.

关 键 词：CALPHAD Ti-Al-Fe-Mn 相变温度 

分 类 号：O414.13[理学—理论物理]