Thermodynamic calculations in the development of high-temperature Co–Re-based alloys
Thermodynamic calculations in the development of high-temperature Co–Re-based alloys
复制标题
高温钴铼基合金开发中的热力学计算
DOI：
10.1016/j.jallcom.2013.07.055
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发表时间：
2014
影响因子：
6.2
通讯作者：
J. Rösler
中科院分区：
文献类型：
--
作者：
B. Gorr;H. Christ;D. Mukherji;J. Rösler
实验性Co-Re基合金正在开发中，用于工作温度超过1100 °C的高温应用。本研究的主要任务之一是寻找最佳的化学组成。热力学计算对组分的选择和优化有很大的帮助。在这项研究中，热力学计算被用来识别潜在的合金元素，并确定合适的浓度范围，以提高性能，如强度和抗氧化性，这是必不可少的高温结构材料。利用计算得到的Co-Re-Cr三元相图设计了参考模型合金。可靠地预测在不同的大气条件下形成的腐蚀产物的一些模型钴铼基合金。预氧化处理是提高合金在腐蚀性气氛中抗氧化性的常用方法，基于热力学考虑，设计了预氧化处理。
The experimental Co–Re-based alloys are being developed for high-temperature applications for service temperatures beyond 1100 °C. One of the main tasks of this research is to find the optimal chemical composition. Thermodynamic calculations are very helpful for composition selection and optimization. In this study, thermodynamic calculations were used to identify potential alloying elements and to determine suitable concentration ranges to improve properties, such as strength and oxidation resistance that are essential for high-temperature structural materials. The calculated ternary phase diagram of the Co–Re–Cr system was used to design the reference model alloy. Corrosion products formed under different atmospheric conditions were reliably predicted for a number of model Co–Re-based alloys. Pre-oxidation treatment, a common method used to improve the oxidation resistance of alloys in aggressive atmosphere, was successfully designed based on thermodynamic considerations.
高温原位中子和 X 射线测量在燃气轮机用钴铼基合金开发中的应用
DOI：
10.1007/s11661-012-1363-6
发表时间：
2013
期刊：
Metallurgical and Materials Transactions A
影响因子：
--
作者：
D. Mukherji;J. Rösler;J. Wehrs;P. Strunz;P.Beran;R. Gilles;M. Hofmann;M. Hoelzel;H. Eckerlebe;L. Szentmiklósi;Z. Mácsik
通讯作者：
Z. Mácsik