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Ti-48Al-2Nb-2Cr合金铸造收缩特性研究
Authors
任贵娟
南海
+5 more
李建崇
罗倩
莫晓飞
魏战雷
黄东
Publication date
1 January 2018
Publisher
Abstract
目的研究Ti Al合金铸造过程的收缩特性。方法采用Ti4822合金,通过设计长方体、圆柱体、回字形和环形4种典型结构,开展了熔模精密铸造工艺实验。结果基础尺寸在10~80 mm时,Ti4822合金的自由线收缩率在3.11%~2.09%之间,受阻收缩比自由收缩低30%~50%左右,同时随着基础尺寸的增加,自由线收缩量增加,而收缩率呈降低趋势。结论收缩数据和规律的获得,为Ti Al合金铸件尺寸精度控制提供了基础数据
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Last time updated on 08/07/2019