Influence of overlapping friction stir processing on microstructural evolution, texture development, and mechanical performance in Al6061

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications Pub Date : 2024-03-08 DOI:10.1177/14644207241235385

Marukurti VNV Satyanarayana, Begari Vijayakrishna, Mukuloth Srinivasnaik, Rajani K. Kolagotla, Durga V. Janaki, Putta Prakash

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Abstract

In the current examination, a large-area stirred zone has been created in Al6061 through the application of overlapping friction stir processing. The investigation focused on examining the microstructural and texture changes in friction stir processed Al6061, using the electron backscattered diffraction technique. Electron backscattered diffraction images provided valuable insights into the recrystallization process, revealing the presence of fine-grained structure with high-angle boundaries in the large-area stirred zone attributed to intense plastic straining and dynamic recrystallization. The use of the tool caused significant plastic straining, resulting in the development of the A- (1 1 1) {1 1 0} texture component. Mechanical testing demonstrated a noteworthy increase in ductility after processing. However, the microhardness and strength were observed to be inferior to the base material due to elevated thermal cycling.

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重叠摩擦搅拌加工对 Al6061 中微结构演变、纹理发展和机械性能的影响

在本次研究中，通过应用重叠摩擦搅拌加工，在 Al6061 中形成了一个大面积的搅拌区。研究重点是利用电子反向散射衍射技术检查摩擦搅拌加工 Al6061 的微观结构和纹理变化。电子反向散射衍射图像为了解再结晶过程提供了宝贵的信息，揭示了在大面积搅拌区存在具有高角度边界的细粒结构，这归因于强烈的塑性应变和动态再结晶。工具的使用造成了显著的塑性应变，从而形成了 A- (1 1 1) {1 1 0} 纹理成分。机械测试表明，加工后的延展性显著提高。然而，由于热循环升高，观察到的显微硬度和强度不如基体材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 工程技术-材料科学：综合

CiteScore

4.70

自引率

8.30%

发文量

166

审稿时长

3 months

期刊介绍： The Journal of Materials: Design and Applications covers the usage and design of materials for application in an engineering context. The materials covered include metals, ceramics, and composites, as well as engineering polymers. "The Journal of Materials Design and Applications is dedicated to publishing papers of the highest quality, in a timely fashion, covering a variety of important areas in materials technology. The Journal''s publishers have a wealth of publishing expertise and ensure that authors are given exemplary service. Every attention is given to publishing the papers as quickly as possible. The Journal has an excellent international reputation, with a corresponding international Editorial Board from a large number of different materials areas and disciplines advising the Editor." Professor Bill Banks - University of Strathclyde, UK This journal is a member of the Committee on Publication Ethics (COPE).