快速凝固Al-Fe合金的显微组织及其对性能的影响-《郑州大学学报(工学版)》

文章信息/Info

Title:: The micro-tissue and its impact on performance on fast solidification Al-FE alloys

Author(s):: Tang Yali; Shen Ningfu;; Zhengzhou Institute of Technology Materials Research Center, Material Research Center of Zhengzhou Institute of Technology,

关键词:: 本文用分析电子显微术(AEM)和力学性能测试研究了快速凝固热强合金Al-Fe-(Ce、Ti、Zr)的显微组织及其对高温性能的影响。首先分析了急冷条带的凝固过程动力学及凝固速度对胞晶内部溶质分布的影响; 之后对急冷条带及热挤合金的退火过程与弥散相分布时合金高温性能的作用进行了研究。分析结果表明:影响合金凝固过程的主要是初始过冷度和凝固速率; 胞晶内溶质元素固溶量随凝固速度增大而升高。合金高温性能主要同弥散相的结构及分布有关。

Abstract:: This article uses an analysis of electronic microcomposter (AEM) and mechanical performance tests to study the micro-tissue and its impact on high temperature performance on high-temperature performance of the rapid solidification thermal alloy Al-FE- (CE, Ti, ZR). Firstly, the effects of dynamic dynamics and solidification speed of the acute cold strip band on the internal solution distribution of the cell crystal have been analyzed. After that, the effect of the high temperature performance of the alloy of alloy when the annealing process and the distribution of the armal squeezing alloy are distributed. The analysis results show that: the initial overlapping and coagulation rate of the alloy solidification process is mainly to affect the alloy solidification process; the solid -soluble quantity of the soluble element in the cell crystal increases with the increase of the solidification rate. The high temperature performance of the alloy is mainly related to the structure and distribution of the scattered phase.