Re和Ta对抗热腐蚀单晶高温合金900 ℃长期时效组织稳定性的影响
黄太文1,卢晶1,许瑶1,王栋2,张健2,张家晨1,张军1,刘林1(
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Effects of Rhenium and Tantalum on Microstructural Stability of Hot-Corrosion Resistant Single Crystal Superalloys Aged at 900 ℃
HUANG Taiwen1,LU Jing1,XU Yao1,WANG Dong2,ZHANG Jian2,ZHANG Jiachen1,ZHANG Jun1,LIU Lin1()
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图4. 5种合金在900 ℃长期时效中组织形貌演变
Fig.4. Microstructure morphologies at dendritic core of 2Ta2Re (a1~a4), 5Ta0Re (b1~b4), 5Ta2Re (c1~c4), 8Ta0Re (d1~d4) and 8Ta2Re (e1~e4) alloys during long-term thermal exposure (LTTE) at 900 ℃ for 100 h (a1~e1), 1000 h (a2~e2), 2000 h (a3~e3) and 5000 h (a4~e4)
