相场法模拟吹气法制备泡沫铝过程中的铝液气泡演化过程  

Phase-Field method for simulating the growth progress of foam in the gas injection aluminum foaming process

作　　者：潘鹏飞[1] 任雁秋[1] 张荣鹏[2] 

机构地区：[1]内蒙古科技大学能源与环境工程学院,包头014010 [2]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《四川大学学报（自然科学版）》2013年第6期1315-1319,共5页Journal of Sichuan University(Natural Science Edition)

摘　　要：针对吹气法制备泡沫金属过程中产生气泡稳定性不易判断问题,本文利用相场法理论,引入长程有序化参数作为场变量,描述并模拟泡沫铝和泡沫铝合金气泡演变过程中的结构尺寸的变化.通过模拟分析发现,相场法可以通过场变量简单明了的表征各种复杂的几何图形,包括气泡的几何形状、空间分布以及体积分数等,并且其模拟结果与实验观察结果具有良好的吻合性.To study the foam stability problem in the gas injection metal foaming process, the change of the foam structure during the foam growth progress of aluminum foams and A1 alloy foam by gas injec- tion foaming was described and simulated by phase-field method with the long range order parameter as field variable. By the analysis of the simulation, all kinds of complex geometrical figures, including the foam geometrical figures, the foam spatial distribution and the foam volume fraction and so on, were clearly described through field variable, and the result of simulation was in accord with the result of ex- perimental observations.

关 键 词：相场理论 序参量 泡沫铝 吹气发泡 

分 类 号：TB34[一般工业技术—材料科学与工程]