Improvising of dissimilar friction stir weld strengths using biosilica nanoparticle: mechanical, fatigue and microstructure properties

The effect of introducing wheat husk biosilica (WHB) to the weld pool of different AA7075-AZ31B was investigated in this work. The biosilica particle of nano-dimensions was prepared from wheat husk wastes via thermo-chemical process. The prepared biosilica particles are again silane grafted for prev...

Full description

Saved in:
Bibliographic Details
Published in:Biomass conversion and biorefinery 2024-05, Vol.14 (10), p.11435-11443
Main Authors: Babu, T. V. B., Selvam, M. Amala Justus, L., Natrayan
Format: Article
Language:English
Subjects:
Biotechnology
Dissimilar material joining
Energy
Fatigue strength
Friction stir welding
Heat affected zone
Heat treating
Lap joints
Machine tools
Machining
Machining centres
Microhardness
Microstructure
Numerical controls
Original Article
Renewable and Green Energy
Tensile strength
Vertical milling machines
Weld defects
Weld metal pool
Welded joints
Wheat
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect of introducing wheat husk biosilica (WHB) to the weld pool of different AA7075-AZ31B was investigated in this work. The biosilica particle of nano-dimensions was prepared from wheat husk wastes via thermo-chemical process. The prepared biosilica particles are again silane grafted for preventing clusters. The joints were made using a vertical machining centre with lap joint configuration. The properties such as tensile strength, yield strength, percent of elongation, hardness and fatigue strength were investigated in accordance to ASTM standards. Optical and SEM analyses were done to reveal the microstructural changes after the reinforcement addition. According to the findings, welds formed with WHB of about 1.0wt% had highest tensile strength of 326Mpa and fatigue strength of 152 MPa. It was discovered that the considerable amount of biosilica resulted in improved microhardness too. Because of the biosilica, the HAZ and TMT grains were refined and distortion free, which resulted improved mechanical and fatigue strength. Moreover, there are no particle agglomerations found. These property improved dissimilar welded joints could be deployed in aerospace, defence, automotive, oil & gas and shipping were stress free weld defects are required.
ISSN:2190-6815
2190-6823
DOI:10.1007/s13399-022-03413-0