钛含量对一种镍基单晶高温合金长期时效后的组织影响

1.沈阳工业大学材料科学与工程学院,沈阳,110023;中国科学院,金属研究所,沈阳,110016

2.中国科学院,金属研究所,沈阳,110016

3.中国科学院,金属研究所,沈阳,110016

4.中国科学院,金属研究所,沈阳,110016

5.中国科学院,金属研究所,沈阳,110016

Effects of Titanium Content on Microstructural Evolution During Prolonged Aging in a Nickel-base Single Crystal Superalloy

研究了不同Ti含量对一种镍基单晶高温合金的铸态组织以及在1000℃长期时效后的组织演化.结果表明:随着Ti含量的增加,铸态组织中枝晶间区域面积以及枝晶间区域的γ/γ'共晶含量逐渐增加;长期时效后随着Ti含量的增加,筏形化程度越来越严重,逐渐有TCP相析出.

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