Microstructural Stability after Long Time Aging in GH132(A-286) Superalloy
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Abstract
The microstructure and the microstructural stability after long time aging(4×104 h) and short aging aging were invetigated on GH132 superalloy. The experimental results show that some brittle phases such as a phase and Laves phase are not observed both in long time aging at low temperature and short time aging at high temperature.However, γ' phase re-precipitation, coarsening and growth and η phase precipitation have been seen after short time aging in GH132 superalloy.
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