基于Gleeble-1500热模拟试验机的镁合金AZ31B塑性变形研究  

Research of Plastic Deformation of AZ31B Magnesium Alloy Based on Fuzzy PID Control

作　　者：马磊娟[1] 王磊[1] 

机构地区：[1]河南工业职业技术学院,河南南阳473000

出　　处：《铸造技术》2013年第12期1640-1642,共3页Foundry Technology

摘　　要：根据镁合金的密排六方结构及其流动应力曲线，用Gleeble．1500热模拟试验机对镁合金AZ31B塑性变形行为进行实验研究。结果表明，温度和应变速率是主要影响镁合金塑性变形的因数，且镁合金AZ31B热变形理想温度范围为250-300℃．在理想温度范围内随着温度增加镁合金晶粒变得细小均匀。According to a hexagonal close-packed structure and flow stress curve of magnesium alloy AZ31B, the plastic deformation of magnesium alloy AZ31B was researched. The experimental results show that the temperature and strain rate is the main factor to affect the plastic deformation of magnesium alloy, and the ideal temperature range of magnesium alloy AZ31B in thermal deformation is 250-300 ℃, magnesium alloy AZ31B can obtaine small uniform grain as the temperature increases in the range of temperature.

关 键 词：镁合金AZ31B 模糊PID控制 塑性变形 

分 类 号：TG146.22[一般工业技术—材料科学与工程]