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Microstructure and Properties of Spray Formed Superalloy GH742y
Author(s): LI Zhou, YUAN Hua, ZHANG Guoqing, ZHANG Yifei, YAO Ruiping, TIAN Shifan
Pages: 679-
682
Year: 2003
Issue:
z1
Journal: JOURNAL OF IRON AND STEEL RESEARCH
Keyword: 喷射成形; 雾化沉积; GH742y合金; 显微组织; 性能;
Abstract: 研究了喷射成形GH742y合金沉积坯的组织和性能以及热变形特性.研究结果表明,氮气雾化喷射成形GH742y合金沉积坯整体致密、成分均匀、无宏观偏析、组织细化、氧含量低,而且具有较好的力学性能,其主要力学性能超过技术指标的要求.同时,由于晶粒细小均匀,所以该合金具有较好的热变形性能.
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