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报道了φ31mm×500mm大尺寸定向生长钼-铌合金单晶的研制情况,介绍了原料选用与制备时所必需遵循的原则,论述了坯料直径与生长单晶直径的关系,并分析了所研制的定向生长单晶的晶向偏角、力学性能和组织结构。
This paper reports the development of large size oriented austenite-niobium alloy single crystal of φ31mm × 500mm, introduces the principles that must be followed when selecting and preparing raw materials, and discusses the relationship between the diameter of blank and the diameter of single crystal grown. Crystal growth direction orientation crystal orientation, mechanical properties and organizational structure.