快速凝固Al－Fe－W－Si－RE耐热铝合金的研究

来源期刊：中南大学学报(自然科学版)1995年第6期

论文作者：姚德超 张深根

文章页码：776 - 780

关键词：快速凝固; 耐热铝合金; 粉末

Key words：rapid solidification; heat resistant aluminum alloy; powder

摘    要：研究了用多级快速凝固技术制取的AL－11.5Fe－3.8W－2.3Si－RE(质量分数)合金粉末的室温和高温组织结构及性能,结果表明,该合金有利于形成所谓“无特征区”组织,确定了合金的相变和第二相粒子大小为30～80nm,并获得了室温和高温拉伸性能优良的新合金。

Abstract: The microstructure and property of rapidly solidified Al-11.5Fe-3.8W-2.3Si-RE（Inweight)alloy powders at room and elevated temperature were examined. The results showed that the alloy powders are prone to formation of a so-called“featureless zone”microstructures。Also,the phase transformation behavior of the alloys and the second phase particles with sizes of 30～80 nm were determined. The alloys with excellent tensile properties at the room and the elevated temperature were fabricated。