Microstructure and residual stresses in a friction stir welded butt joint of as-cast ZK60 alloy containing rare earths

Erenilton Pereira Da Silva; Verona Biancardi Oliveira; Victor Ferrinho Pereira; Omar Maluf; Ricardo Henrique Buzolin; Haroldo Cavalcanti Pinto

doi:10.1590/1980-5373-MR-2016-0899

Microstructure and residual stresses in a friction stir welded butt joint of as-cast ZK60 alloy containing rare earths

Erenilton Pereira Da Silva^*, Verona Biancardi Oliveira, Victor Ferrinho Pereira, Omar Maluf, Ricardo Henrique Buzolin, Haroldo Cavalcanti Pinto

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The effect of a travel speed of 200 mm/min as well as a tool rotational speed of 1200 rpm on butt joint quality of friction stir welding (FSW) ZK60 magnesium casting alloy containing 1.5 wt.% rare earths (ZK60-1.5RE) was investigated to determine microstructure and residual stresses. FSW results in the generation of heterogeneous metallurgical structures consisting of the base material (BM), stirred zone (SZ) and thermo-mechanical affected zone (TMAZ). The stirring action also produced a non-uniform distribution and segregation of intermetalics. The transversal distribution of the longitudinal welding stresses exhibits a "M-like" shape with mostly tensile stresses under the shoulder region and only one compressive stress peak in the advancing side of the SZ and TMAZ. It could be demonstrated that FSW of ZK60-1.5RE alloy was successful in the welding conditions applied during the present work.

Original language	English
Pages (from-to)	775-779
Number of pages	5
Journal	Materials Research
Volume	20
Issue number	3
DOIs	https://doi.org/10.1590/1980-5373-MR-2016-0899
Publication status	Published - 1 May 2017

Keywords

Friction stir welding
Microstructure
Rare-earth elements
Residual stress
Zk60 alloy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1590/1980-5373-MR-2016-0899Licence: CC BY 4.0

Cite this

@article{7ae846a5c05d4387a47f36921da07122,

title = "Microstructure and residual stresses in a friction stir welded butt joint of as-cast ZK60 alloy containing rare earths",

abstract = "The effect of a travel speed of 200 mm/min as well as a tool rotational speed of 1200 rpm on butt joint quality of friction stir welding (FSW) ZK60 magnesium casting alloy containing 1.5 wt.% rare earths (ZK60-1.5RE) was investigated to determine microstructure and residual stresses. FSW results in the generation of heterogeneous metallurgical structures consisting of the base material (BM), stirred zone (SZ) and thermo-mechanical affected zone (TMAZ). The stirring action also produced a non-uniform distribution and segregation of intermetalics. The transversal distribution of the longitudinal welding stresses exhibits a {"}M-like{"} shape with mostly tensile stresses under the shoulder region and only one compressive stress peak in the advancing side of the SZ and TMAZ. It could be demonstrated that FSW of ZK60-1.5RE alloy was successful in the welding conditions applied during the present work.",

keywords = "Friction stir welding, Microstructure, Rare-earth elements, Residual stress, Zk60 alloy",

author = "{Da Silva}, {Erenilton Pereira} and Oliveira, {Verona Biancardi} and Pereira, {Victor Ferrinho} and Omar Maluf and Buzolin, {Ricardo Henrique} and Pinto, {Haroldo Cavalcanti}",

year = "2017",

month = may,

day = "1",

doi = "10.1590/1980-5373-MR-2016-0899",

language = "English",

volume = "20",

pages = "775--779",

journal = "Materials Research",

issn = "1516-1439",

publisher = "Universidade Federal de Sao Carlos",

number = "3",

}

TY - JOUR

T1 - Microstructure and residual stresses in a friction stir welded butt joint of as-cast ZK60 alloy containing rare earths

AU - Da Silva, Erenilton Pereira

AU - Oliveira, Verona Biancardi

AU - Pereira, Victor Ferrinho

AU - Maluf, Omar

AU - Buzolin, Ricardo Henrique

AU - Pinto, Haroldo Cavalcanti

PY - 2017/5/1

Y1 - 2017/5/1

N2 - The effect of a travel speed of 200 mm/min as well as a tool rotational speed of 1200 rpm on butt joint quality of friction stir welding (FSW) ZK60 magnesium casting alloy containing 1.5 wt.% rare earths (ZK60-1.5RE) was investigated to determine microstructure and residual stresses. FSW results in the generation of heterogeneous metallurgical structures consisting of the base material (BM), stirred zone (SZ) and thermo-mechanical affected zone (TMAZ). The stirring action also produced a non-uniform distribution and segregation of intermetalics. The transversal distribution of the longitudinal welding stresses exhibits a "M-like" shape with mostly tensile stresses under the shoulder region and only one compressive stress peak in the advancing side of the SZ and TMAZ. It could be demonstrated that FSW of ZK60-1.5RE alloy was successful in the welding conditions applied during the present work.

AB - The effect of a travel speed of 200 mm/min as well as a tool rotational speed of 1200 rpm on butt joint quality of friction stir welding (FSW) ZK60 magnesium casting alloy containing 1.5 wt.% rare earths (ZK60-1.5RE) was investigated to determine microstructure and residual stresses. FSW results in the generation of heterogeneous metallurgical structures consisting of the base material (BM), stirred zone (SZ) and thermo-mechanical affected zone (TMAZ). The stirring action also produced a non-uniform distribution and segregation of intermetalics. The transversal distribution of the longitudinal welding stresses exhibits a "M-like" shape with mostly tensile stresses under the shoulder region and only one compressive stress peak in the advancing side of the SZ and TMAZ. It could be demonstrated that FSW of ZK60-1.5RE alloy was successful in the welding conditions applied during the present work.

KW - Friction stir welding

KW - Microstructure

KW - Rare-earth elements

KW - Residual stress

KW - Zk60 alloy

UR - http://www.scopus.com/inward/record.url?scp=85021262778&partnerID=8YFLogxK

U2 - 10.1590/1980-5373-MR-2016-0899

DO - 10.1590/1980-5373-MR-2016-0899

M3 - Article

AN - SCOPUS:85021262778

SN - 1516-1439

VL - 20

SP - 775

EP - 779

JO - Materials Research

JF - Materials Research

IS - 3

ER -

Microstructure and residual stresses in a friction stir welded butt joint of as-cast ZK60 alloy containing rare earths

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this