The Determination of Solution Temperature for NCu30-4-2-1 Alloy

Abstract:

NCu30-4-2-1 alloy was treated by the two methods of in situ observation experiment at high temperature and common heat treatment to determine solution temperature. High temperature metallurgical microscope was used to in situ observation of microstructure evolution of NCu30-4-2-1 alloy during heating process. The microstructures of the samples were observed by optical microscope. The results show that the as-cast microstructure of NCu30-4-2-1 alloy is composed by dendritic α-Ni-based solid solution and net-like (α+β) eutectics. The morphology of strengthening phase β-Ni3Si is graininess distributing on the grain boundary. The optimum solution temperature is both determined as 950°C by the two methods. The two methods of in situ observation experiment at high temperature and common heat treatment have comparability.

• Periodical: Advanced Materials Research (Volumes 1061-1062)
• Pages: 45-48
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1061-1062.45
• Online since: December 2014
• Authors: Si Qi Huang, Yun Long Ai*, Wen He, Xiao Rui Shen
• Keywords: High Temperature Metallurgical Microscope, In Situ Observation, Microstructure, NCu30-4-2-1, Solution Temperature

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