半固态金属表观黏度的测量及样品制取

Apparent viscosity testing and sample preparation for semisolid alloy slurry

针对以往设备的不足之处,设计了半固态合金浆料表观黏度的测量装置.以理论计算公式作为测量依据,合理地设计和组合各部件,提高了测量精确度和可靠性,有效防止了半固态合金的高温氧化,对高固相分数的半固态合金也可以处理,并方便地获得样品.对样品的表观黏度测量以及金相组织分析表明,本装置可有效地对半固态合金进行流变性能和组织形态演变的研究.

A improved equipment was designed to test the apparent viscosity of semisolid alloy slurry since many shortcomings appeared in previous devices. Measurements based on the theoretic calculation formula were taken, all components were reasonably assembled, and accurate and stable testing was conducted. The semisolid alloy is prevented to be oxidized, high solid fraction alloy is able to deal with, and semisolid alloy samples can be obtained conveniently. Apparent viscosity testing and metallurgical structure analysis for the samples indicate that the rheological behavior and morphology evolution of semisolid alloy can be effectively investigated by this equipment.