首页|Rapid solidification of hypoeutectic aluminum copper alloys using fast-scanning calorimetry
Rapid solidification of hypoeutectic aluminum copper alloys using fast-scanning calorimetry
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Elsevier
? 2022 Elsevier B.V.The rapid solidification behaviour of binary aluminum copper alloys in the hypoeutectic range of compositions has been studied in this work. Solidification at cooling rates up to 40,000 °Cs?1 can be achieved using a chip-based calorimeter, but present challenges in sample preparation and temperature correction, which are addressed in this work. Data from calorimetry has been used to produce fraction of solid curves which are important input to metal manufacturing processing models. Undercoolings range from around 50 °C at 100 °Cs?1 to around 100 °C at 40,000 °Cs?1. From these, a kinetic phase diagram was constructed for the hypoeutectic region of the Al-Cu system, for cooling rates up to 40,000 °Cs?1. The undercoolings measured in this experiment are considerably higher than those predicted theoretically for growth-based rapid solidification, but not as high as those predicted under homogeneous nucleation.
Fast-scanning differential scanning calorimetryFraction of solid curvesMetal alloysRapid solidification
Ravi Narayan L.、Hebert R.
展开 >
Department of Materials Science and Engineering University of Connecticut
NSTL
Elsevier
