Characteristics of defect bands and their formation mechanisms in A356 wheel fabricated by horizontal squeeze casting
作者： X. S. Huang , L. J. He , G. B. Mi , P. J. Li
DOI: 10.1179/1743284714Y.0000000542
关键词:
摘要: Based on the opinion that a decreasing solid fraction gradient in cross-section develops during intensification stage, shear stress solidifying alloy was analysed, and mechanism for dilatant band formation discussed. That is, when at one position of stable grain network reaches critical value, collapses forms. The characteristics defect bands different locations an A356 wheel fabricated by horizontal squeeze casting were then studied. Three types bands, i.e. skin related band, separate observed. Combining process conditions formation, several Furthermore, influence structural castings including thickness, geometry location, summarised.
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