Segregation of solute and reinforcement during solidification in cast TiAl composites
作者： J.D. Bryant , J.R. Maisano , D.T. Winter , A.R.H. Barrett
DOI: 10.1016/0956-716X(90)90512-F
关键词:
摘要: Backscattered electron imaging (BEI), energy dispersive X-ray spectroscopy (EDS) and optical microscopy were used to identify primary solidification structures measure solidification-induced segregation of matrix constituents reinforcement phases. The addition titanium diboride near gamma aluminides has been shown be effective in reducing the initial grain size formed on from melt. Despite this refinement, however, significant constitutional inhomogeneities may found due alloying elements phases during solidification. A study was undertaken quantify extent Ti-51.5 Al-1.4Mn+9.1 w%TiB 2 alloy
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