基于ADAM温控系统稀土铝铜合金重熔工艺研究
Remelting Technology of Rare-earth Aluminum-copper Alloy Based on ADAM Temperature Control System
肖 英1, 易荣喜2, 曾宪文1
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作者单位:(1.井冈山大学 信息传媒学院,江西 吉安 343009;2.井冈山大学 工学院,江西 吉安 343009)
中文关键字: 稀土铝铜合金; 重熔; 微观组织; ADAM模块; 演化机理
英文关键字:rare-earth aluminum-copper alloy; remelting; microstructure; ADAM4000 module; evolution mechanism
中文摘要:采用ADAM4000系列模块开发的温度控制系统,实现了温度信号采集、交换和控制。研究了在稀土铝铜合金半固态重熔过程中加热温度和保温时间对合金组织的影响,并对组织演化机制进行了探讨。实验表明,加热温度和保温时间是影响晶粒尺寸和均匀性两个重要的因素。稀土铝铜合金半固态重熔合适工艺参数为:加热温度630 ℃,保温时间20 min。重熔过程中α晶粒合并和Ostwald长大是微观组织变化的主要机制。
英文摘要:The acquisition, exchange and control of temperature signal were realized using ADAM4000 series modules in semi-solid remelting process for rare-earth aluminum-copper alloy, the influence of heating temperature and holding time on the alloy was studied, and the evolutionary mechanisms of the alloy's microstructure were discussed. The results show that heating temperature and holding time are two important factors affecting the grain size and uniformity. The appropriate process parameters in semi-solid remelting of the alloy is as follows: heating temperature 630 ℃, holding time 20 min. In the remelting process, the consolidation and Ostwald growing-up of α grain is the primary mechanism of microstructure evolution.