摘要
用不同熔铸工艺制备了4种成分的2618铝合金,采用Gleeble1500热模拟试验机对这些合金的压缩蠕变性能进行了研究。试验结果表明:2618铝合金表现出较高的蠕变应力指数,在引入门槛应力后,该合金的蠕变行为可得到满意解释;当对高Fe、Ni2618合金熔体高温过热处理以及采用Zr、Mn元素合金化均使门槛应力值增加。
The compression creep behaviors of 2618 alloy with different compositions prepared by different smelting-casting methods were examined by Gleeble-1 500 thermal simulator.It was found that 2618 aluminum alloy exhibits a higher creep stress exponent.The creep behaviors of the alloy can be described by using threshold stress.The threshold stress of the alloy melt containing high Fe and Ni can be improved by elevated treatment and Zr,Mn alloying treatment.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2005年第6期381-383,共3页
Special Casting & Nonferrous Alloys
