Thermoelastic properties and γ’-solvus temperatures of single-crystal Ni-base superalloys
Thermoelastic properties and γ’-solvus temperatures of single-crystal Ni-base superalloys
复制标题
单晶镍基高温合金的热弹性性能和γ-固溶线温度
DOI：
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发表时间：
2021
影响因子：
4.5
通讯作者：
G. Eggeler
中科院分区：
文献类型：
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作者：
O. Horst;D. Schmitz;J. Schreuer;P. Git;H. Wang;C. Körner;G. Eggeler
本文的工作表明，热膨胀实验可以用来测量四种镍基单晶高温合金（SX）的γ′溶剂温度，一种含Re和三种无Re变体。以CMSX-4为例，实验结果与使用ThermoCalc得到的数值热力学结果吻合较好。对于三种无re合金，实验结果与计算结果接近。透射电镜分析表明，可以较好地预测γ-相和γ′相的化学组成。我们还使用共振超声光谱（RUS）来显示弹性系数如何依赖于化学成分和温度。结果是讨论在以前的结果在文献报道的光。强调了需要进一步开展工作的领域。
The present work shows that thermal expansion experiments can be used to measure the γʼ-solvus temperatures of four Ni-base single-crystal superalloys (SX), one with Re and three Re-free variants. In the case of CMSX-4, experimental results are in good agreement with numerical thermodynamic results obtained using ThermoCalc. For three experimental Re-free alloys, the experimental and calculated results are close. Transmission electron microscopy shows that the chemical compositions of the γ- and the γʼ-phases can be reasonably well predicted. We also use resonant ultrasound spectroscopy (RUS) to show how elastic coefficients depend on chemical composition and temperature. The results are discussed in the light of previous results reported in the literature. Areas in need of further work are highlighted.
影响因子：
9.4
作者：
X. Wu;P. Wollgramm;C. Somsen;A. Dlouhý;A. Kostka;G. Eggeler
通讯作者：
X. Wu;P. Wollgramm;C. Somsen;A. Dlouhý;A. Kostka;G. Eggeler
影响因子：
3.6
作者：
Parsa, Alireza B.;Wollgramm, Philip;Eggeler, Gunther
通讯作者：
Eggeler, Gunther