Patel Jayesh B, Yang Xinliang, Mendis Chamini L, Fan Zhongyun
The EPSRC Centre - LiME Hub, BCAST, Brunel University London, Uxbridge, UB8 3PH UK.
JOM (1989). 2017;69(6):1071-1076. doi: 10.1007/s11837-017-2335-5. Epub 2017 Apr 7.
Casting is the first step toward the production of majority of metal products whether the final processing step is casting or other thermomechanical processes such as extrusion or forging. The high shear melt conditioning provides an easily adopted pathway to producing castings with a more uniform fine-grained microstructure along with a more uniform distribution of the chemical composition leading to fewer defects as a result of reduced shrinkage porosities and the presence of large oxide films through the microstructure. The effectiveness of high shear melt conditioning in improving the microstructure of processes used in industry illustrates the versatility of the high shear melt conditioning technology. The application of high shear process to direct chill and twin roll casting process is demonstrated with examples from magnesium melts.
铸造是大多数金属产品生产的第一步，无论最终加工步骤是铸造还是其他热机械加工工艺，如挤压或锻造。高剪切熔体处理提供了一条易于采用的途径，可生产出具有更均匀细晶微观结构以及更均匀化学成分分布的铸件，从而减少因收缩孔隙率降低和整个微观结构中大型氧化膜的存在而导致的缺陷。高剪切熔体处理在改善工业生产工艺微观结构方面的有效性说明了高剪切熔体处理技术的通用性。通过镁熔体的实例展示了高剪切工艺在直接 chill 铸造和双辊铸造工艺中的应用。 （注：“direct chill”不太明确准确的中文表述，可根据实际情况进一步完善）
