(昆明理工大學(xué) 材料與冶金學(xué)院， 昆明 650093)
摘 要: 近年來發(fā)展起來的PFM模型根據(jù)“溶質(zhì)捕捉”和“溶質(zhì)牽引”兩種機(jī)制對(duì)金屬及合金快速凝固過程進(jìn)行數(shù)學(xué)描述及模擬，較好地反映了金屬凝固的物理本質(zhì)。介紹了PFM模型發(fā)展過程、研究現(xiàn)狀及理論模型，并對(duì)發(fā)展前景進(jìn)行了展望。
關(guān)鍵字: 相區(qū)場(chǎng)模型；溶質(zhì)捕捉； 合金凝固； 枝晶生長(zhǎng)
of liquid alloy
（School of Material and Metallurgy, Kunming University of
Science and Technology, Kunming 650093, P.R.China）
Abstract:In recent years, phase-field model(PFM) of alloy solidification based on solute trapping and solute drag was introduced as a powerful tool to simulate the process of solidification. An overview introduction about its development was given and an emphasis on its theoretical frame was put.
Key words: phase-field model; solute trapping; alloy solidification; dendritic growth
