Microstructural and Mechanical Properties of Friction Stir Welding of AZ91D

O. Kayode*, E. T. Akinlabi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this study, a relatively new manufacturing process - friction stir welding (FSW) was used to join 3 mm thick AZ91D plates. The process was conducted at a traverse speed of 50 mm/min and rotational speed of 1000 rpm; and the weld sample’s microstructural and mechanical properties were evaluated. The microstructural analysis was conducted with an optical microscope. The mechanical properties evaluation includes tensile and microhardness tests. The microstructural analysis shows a defect-free sound joint of the materials with absence of voids and wormholes. The tensile strength of the weld was enhanced significantly and a joint efficiency of 109% was achieved. However, there was no substantial effect on the ductility and hardness properties of the weld sample. In conclusion, the FSW process is an efficient and sustainable technique to join and enhance the tensile properties of similar AZ91D alloys.

Original languageEnglish
Title of host publicationAdvances in Material Science and Engineering
Subtitle of host publicationSelected articles from ICMMPE 2020
EditorsMokhtar Awang, Seyed Sattar Emamian
Place of PublicationSingapore
Number of pages8
ISBN (Electronic)9789811636417
ISBN (Print)9789811636400, 9789811636431
Publication statusPublished - 6 Jul 2021
Externally publishedYes
Event6th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2020 - Virtual, Online
Duration: 25 Nov 202026 Nov 2020

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364


Conference6th International Conference on Mechanical, Manufacturing and Plant Engineering, ICMMPE 2020
CityVirtual, Online

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