Microstructure and chemical characterization of Linear Friction Welded aerospace materials with focus on dissimilar joints

被引：0

作者：

Boyat, X. ^{[1
]}

Ballat-Durand, D. ^{[1
]}

Marteau, J. ^{[1
]}

Bouvier, S. ^{[1
]}

Risbet, M. ^{[1
]}

Favergeon, J. ^{[1
]}

机构：

[1] Univ Technol Compiegne, CNRS, Roberval Mech Energy & Elect, Ctr Rech Royallieu, CS 60 319, F-60203 Compiegne, France

来源：

42ND RISO INTERNATIONAL SYMPOSIUM ON MATERIALS SCIENCE: MICROSTRUCTURAL VARIABILITY: PROCESSING, ANALYSIS, MECHANISMS AND PROPERTIES | 2022年 / 1249卷

关键词：

PARENT ORIENTATION MAPS; TITANIUM; ALLOY;

D O I：

10.1088/1757-899X/1249/1/012002

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

This study is focused on a through characterization of the microstructure and chemical composition of dissimilar linear friction welded joints. First, Ti-6Al-2Sn-4Cr-2Mo (Ti6242) and Ti-5Al-2Sn-2Zr-4Mo-4Cr (Ti17) joints are described to identify the mechanisms behind the successful cohesion of the material surfaces. It was found that continuous dynamic recrystallization and cohesion took place through grain-boundary migration in a shared single phase beta-domain obtained through high temperature and high strain conditions. Then, the possibility of assembling Ti6242 and Inconel 718 is examined. Chemical results combined with microstructure and crystal orientation analyses showed that the intermixing zone formed between the materials was particularly heterogeneous, with the development of an intermediate bimodal microstructure, mainly composed of Ti-beta phase and Ti2Ni intermetallic phase.

引用

页数：17

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