等通道转角挤压过程中连续铸锭内塑性应变累积对AlCu4MgSi合金组织和再结晶温度的影响

Influence of Plastic Strain Accumulation in Continuous Ingots during ECAP on Structure and Recrystallization Temperature of AlCu4MgSi Alloy.

作者信息

Nuckowski Paweł M, Snopiński Przemysław, Wróbel Tomasz

机构信息

Department of Engineering Materials and Biomaterials, Silesian University of Technology, 18A Konarskiego Street, Gliwice 44-100, Poland.

Department of Foundry Engineering, Silesian University of Technology, 7 Towarowa Street, Gliwice 44-100, Poland.

出版信息

Materials (Basel). 2020 Jan 25;13(3):576. doi: 10.3390/ma13030576.

DOI:10.3390/ma13030576

PMID:31991833

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7040609/

Abstract

This work attempts to process AlCu4MgSi (AW 2017A) alloy continuous ingots by means of the equal channel angular pressing (ECAP) method. The equal channel angular pressing (ECAP) technique has been widely investigated in recent years as the most promising severe plastic deformation (SPD) method. The presented research was focused on the precise determination of the phase composition of the precipitates formed in the AlCu4MgSi alloy and its influence on intensive plastic deformation. In the second stage, the research was focused on explaining the recrystallization process. With the use of the high-temperature X-ray diffraction (HTXRD) technique, the changes in the dislocation substructure at various recrystallization annealing temperatures were analyzed.

摘要

本研究试图采用等径角挤压（ECAP）方法对AlCu4MgSi（AW 2017A）合金连铸锭进行加工。近年来，等径角挤压（ECAP）技术作为最具前景的严重塑性变形（SPD）方法受到了广泛研究。本研究聚焦于精确测定AlCu4MgSi合金中析出相的相组成及其对强烈塑性变形的影响。在第二阶段，研究重点在于解释再结晶过程。利用高温X射线衍射（HTXRD）技术，分析了不同再结晶退火温度下位错亚结构的变化。