@inproceedings{1b66219a064646dc990cf4d40e260e91,
title = "Heat treatment of a Ni3Al-based single crystal alloy IC32",
abstract = "IC32 is a new type of Ni3Al-based single crystal alloy, which has been designed to serve at 1200°C. The effect of heat treatment on the microstructure of single crystal superalloy IC32 was investigated. The microstructure after heat treatment under different solution and aging temperature was examined by using optical microscope (OM), scanning electron microscopy(SEM) and electron probe microscopic analyzer (EPMA). The as-cast microstructure of IC32 consisted of a two-phase γ/γ′ microstructure, and primary bulky γ′ phase which priciptated in the interdendritic region. The incipient melting temperature of IC32 is 1360°C, and the heat treatment window is about 40°C. Considering high contents of refractory elements Re and Ta, a complicated 18 hours solution heat treatment at different temperatures was conducted to elimate the segregation and dissolove the primary bulky γ′ phase. The optimum heat treatment of IC32 alloy is 1325°C/4h+1335°C/4h+1345°C /10h, ac + 1165°C/2h, ac + 870°C/32h, ac.",
keywords = "Heat treatment, Microstructure",
author = "Dongliang Cui and Xiaoying Xie and Shusuo Li and Heng Zhang and Shengkai Gong",
year = "2013",
doi = "10.4028/www.scientific.net/MSF.747-748.665",
language = "英语",
isbn = "9783037856086",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "665--671",
editor = "Yafang Han and Junpin Lin and Chengbo Xiao and Xiaoqin Zeng",
booktitle = "High Performance Structure Materials",
address = "瑞士",
note = "Chinese Materials Congress 2012, CMC 2012 ; Conference date: 13-07-2012 Through 18-07-2012",
}