Investigation of mechanical properties and surface roughness of friction stir welded AA6061-T651-Reference-Cited by-同舟云学术

Investigation of mechanical properties and surface roughness of friction stir welded AA6061-T651

Published:2020-06-06 Issue:1 Volume:15 Page:
ISSN:1823-0334
Container-title:International Journal of Mechanical and Materials Engineering
language:en
Short-container-title:Int J Mech Mater Eng

Author:

Bhushan Rajesh Kumar,Sharma Deepak

Abstract

AbstractFriction stir welding (FSW) of 6-mm-thick plates of AA6061-T651 was carried out using a simple cylindrical pin tool. The impact of welding factors (rotational speed, welding speed) on tensile properties, microhardness, and surface roughness of FSW joints was investigated. Ultimate tensile strength (UTS), yield strength, and % elongation of AA6061-T651 base plate as well as FSW joints were found out using a universal testing machine (UTM). Maximum value of UTS and yield strength were achieved at rotational speed of 1400 rpm and welding speed of 20 mm/min. Minimum surface roughness was reached at rotational speeds of 1400 rpm and welding speed of 20 mm/min. Microstructural evolutions in the friction stir welded (FSWed) joint and microhardness profile were also determined. Maximum hardness of HV 120 was acquired for the stir zone (SZ). Hence, attainment of the maximum tensile strength, microhardness, and minimum surface roughness during FSW is a desired method to improve the service life and suitability of AA6061-T651.

Publisher

Springer Science and Business Media LLC

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://link.springer.com/content/pdf/10.1186/s40712-020-00119-x.pdf

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