Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy
At present, magnesium alloys are extensively used in numerous applications due to their light weight and better characteristics. Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant s...
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| Veröffentlicht in: | Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering Journal of process mechanical engineering, 2021-10, Vol.235 (5), p.1375-1382 |
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| container_title | Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering |
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| creator | Singh, Kulwant Singh, Gurbhinder Singh, Harmeet |
| description | At present, magnesium alloys are extensively used in numerous applications due to their light weight and better characteristics. Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant scientific and industrial interest as it has the potency to form a good quality joint. Post welding heat treatment is an appropriate process to further improve the properties or performance of FSW joints. Therefore, the present work aims to join AZ31 Mg alloy plates by friction stir welding, and microstructural and mechanical properties of the joint have been examined. Furthermore, the consequence of post welding heat treatment on the microstructure and mechanical properties of FSW joint has been evaluated. Tensile strength and elongation of FSW joint were about 145.4 ± 4.9 MPa and 9.5 ± 0.9%, respectively. It was found that post welding heat treatment was beneficial in homogenizing grains and to enhance mechanical properties. Tensile strength and elongation of the joint were improved by 4.74% and 15.78% respectively after PWHT. The highest microhardness of stir zone decreased about 6.84% (73 Hv to 68 Hv) after heat treatment and hardness pattern of weld became relatively smooth. Toughness of PWHT joint was 4.5 ± 0.17 Joules. The mode of tensile failure of as-welded and PWHT joint was ductile. |
| doi_str_mv | 10.1177/0954408921997626 |
| format | Article |
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Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant scientific and industrial interest as it has the potency to form a good quality joint. Post welding heat treatment is an appropriate process to further improve the properties or performance of FSW joints. Therefore, the present work aims to join AZ31 Mg alloy plates by friction stir welding, and microstructural and mechanical properties of the joint have been examined. Furthermore, the consequence of post welding heat treatment on the microstructure and mechanical properties of FSW joint has been evaluated. Tensile strength and elongation of FSW joint were about 145.4 ± 4.9 MPa and 9.5 ± 0.9%, respectively. It was found that post welding heat treatment was beneficial in homogenizing grains and to enhance mechanical properties. Tensile strength and elongation of the joint were improved by 4.74% and 15.78% respectively after PWHT. The highest microhardness of stir zone decreased about 6.84% (73 Hv to 68 Hv) after heat treatment and hardness pattern of weld became relatively smooth. Toughness of PWHT joint was 4.5 ± 0.17 Joules. The mode of tensile failure of as-welded and PWHT joint was ductile.</description><identifier>ISSN: 0954-4089</identifier><identifier>EISSN: 2041-3009</identifier><identifier>DOI: 10.1177/0954408921997626</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Elongation ; Friction stir welding ; Heat treating ; Heat treatment ; Magnesium alloys ; Magnesium base alloys ; Mechanical properties ; Metal plates ; Microhardness ; Microstructure ; Tensile strength ; Weight reduction ; Welded joints</subject><ispartof>Proceedings of the Institution of Mechanical Engineers. 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Part E, Journal of process mechanical engineering</title><description>At present, magnesium alloys are extensively used in numerous applications due to their light weight and better characteristics. Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant scientific and industrial interest as it has the potency to form a good quality joint. Post welding heat treatment is an appropriate process to further improve the properties or performance of FSW joints. Therefore, the present work aims to join AZ31 Mg alloy plates by friction stir welding, and microstructural and mechanical properties of the joint have been examined. Furthermore, the consequence of post welding heat treatment on the microstructure and mechanical properties of FSW joint has been evaluated. Tensile strength and elongation of FSW joint were about 145.4 ± 4.9 MPa and 9.5 ± 0.9%, respectively. It was found that post welding heat treatment was beneficial in homogenizing grains and to enhance mechanical properties. Tensile strength and elongation of the joint were improved by 4.74% and 15.78% respectively after PWHT. The highest microhardness of stir zone decreased about 6.84% (73 Hv to 68 Hv) after heat treatment and hardness pattern of weld became relatively smooth. Toughness of PWHT joint was 4.5 ± 0.17 Joules. The mode of tensile failure of as-welded and PWHT joint was ductile.</description><subject>Elongation</subject><subject>Friction stir welding</subject><subject>Heat treating</subject><subject>Heat treatment</subject><subject>Magnesium alloys</subject><subject>Magnesium base alloys</subject><subject>Mechanical properties</subject><subject>Metal plates</subject><subject>Microhardness</subject><subject>Microstructure</subject><subject>Tensile strength</subject><subject>Weight reduction</subject><subject>Welded joints</subject><issn>0954-4089</issn><issn>2041-3009</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kEtLxDAUhYMoOD72LgOuqzdNOm2Ww-BjYMSNbtyUNL2ZydCXSYrMP_BnmzKiIHgXuZB7zneTQ8gVgxvG8vwWZCYEFDJlUubzdH5EZikIlnAAeUxm0ziZ5qfkzPsdxBKQz8jnqjPNiJ1G2hs69D7QD2xq223oFlWgwcWzxS7QvqNhi7S12kWVG3UYHVLV1bRFvVWd1aqhg-sHdMGin3DGWR1sNPpg3Q9319sJZ-jijTP6tKGqafr9BTkxqvF4-d3Pyev93cvyMVk_P6yWi3WiOciQ4JwLYyQAkyARdZVDVYERstBSoQRdF1WqdLw0RssUmagMq7iWktdCY8bPyfWBG5_6PqIP5a4fXRdXlmkWgyvSIuNRBQfV9Fnv0JSDs61y-5JBOeVd_s07WpKDxasN_kL_1X8BkFeCkg</recordid><startdate>202110</startdate><enddate>202110</enddate><creator>Singh, Kulwant</creator><creator>Singh, Gurbhinder</creator><creator>Singh, Harmeet</creator><general>SAGE Publications</general><general>SAGE PUBLICATIONS, INC</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><orcidid>https://orcid.org/0000-0002-1010-321X</orcidid></search><sort><creationdate>202110</creationdate><title>Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy</title><author>Singh, Kulwant ; Singh, Gurbhinder ; Singh, Harmeet</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-e634ff9001909eecb70bb0f498c9ae90cd8b2ac0bbffc92e14bf1b3c993d4ce53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Elongation</topic><topic>Friction stir welding</topic><topic>Heat treating</topic><topic>Heat treatment</topic><topic>Magnesium alloys</topic><topic>Magnesium base alloys</topic><topic>Mechanical properties</topic><topic>Metal plates</topic><topic>Microhardness</topic><topic>Microstructure</topic><topic>Tensile strength</topic><topic>Weight reduction</topic><topic>Welded joints</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Singh, Kulwant</creatorcontrib><creatorcontrib>Singh, Gurbhinder</creatorcontrib><creatorcontrib>Singh, Harmeet</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Singh, Kulwant</au><au>Singh, Gurbhinder</au><au>Singh, Harmeet</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy</atitle><jtitle>Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering</jtitle><date>2021-10</date><risdate>2021</risdate><volume>235</volume><issue>5</issue><spage>1375</spage><epage>1382</epage><pages>1375-1382</pages><issn>0954-4089</issn><eissn>2041-3009</eissn><abstract>At present, magnesium alloys are extensively used in numerous applications due to their light weight and better characteristics. Welding of magnesium alloys is regarded as one of the most complex phenomena in various industries. The friction stir welding of magnesium alloys has encouraged abundant scientific and industrial interest as it has the potency to form a good quality joint. Post welding heat treatment is an appropriate process to further improve the properties or performance of FSW joints. Therefore, the present work aims to join AZ31 Mg alloy plates by friction stir welding, and microstructural and mechanical properties of the joint have been examined. Furthermore, the consequence of post welding heat treatment on the microstructure and mechanical properties of FSW joint has been evaluated. Tensile strength and elongation of FSW joint were about 145.4 ± 4.9 MPa and 9.5 ± 0.9%, respectively. It was found that post welding heat treatment was beneficial in homogenizing grains and to enhance mechanical properties. Tensile strength and elongation of the joint were improved by 4.74% and 15.78% respectively after PWHT. The highest microhardness of stir zone decreased about 6.84% (73 Hv to 68 Hv) after heat treatment and hardness pattern of weld became relatively smooth. Toughness of PWHT joint was 4.5 ± 0.17 Joules. The mode of tensile failure of as-welded and PWHT joint was ductile.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1177/0954408921997626</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1010-321X</orcidid></addata></record> |
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| ispartof | Proceedings of the Institution of Mechanical Engineers. Part E, Journal of process mechanical engineering, 2021-10, Vol.235 (5), p.1375-1382 |
| issn | 0954-4089 2041-3009 |
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| subjects | Elongation Friction stir welding Heat treating Heat treatment Magnesium alloys Magnesium base alloys Mechanical properties Metal plates Microhardness Microstructure Tensile strength Weight reduction Welded joints |
| title | Influence of post welding heat treatment on the microstructure and mechanical properties of friction stir welding joint of AZ31 Mg alloy |
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