Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy

In this study, an effort has been made to choose an appropriate tool pin profile and rotational speed for a tool using a submerged friction stir processed hot rolled AZ31B magnesium alloy. A defect free process region was obtained using a novel tool shoulder, which consisted of a scroll. Three tool...

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Main Authors: Sankar Ramaiyan, Senthil Kumar Velukkudi Santhanam, Puviyarasan Muthuguru
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2018-04-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/pdf/mr/v21n3/1516-1439-mr-1980-5373-MR-2017-0769.pdf
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author Sankar Ramaiyan
Senthil Kumar Velukkudi Santhanam
Puviyarasan Muthuguru
author_facet Sankar Ramaiyan
Senthil Kumar Velukkudi Santhanam
Puviyarasan Muthuguru
author_sort Sankar Ramaiyan
collection DOAJ
description In this study, an effort has been made to choose an appropriate tool pin profile and rotational speed for a tool using a submerged friction stir processed hot rolled AZ31B magnesium alloy. A defect free process region was obtained using a novel tool shoulder, which consisted of a scroll. Three tool pin profiles, namely, simple cylindrical, stepped cylindrical and stepped square pin have been used. Tensile properties and fracture behavior revealed defect free friction stir processed specimens. The microstructural studies reveal the possibility of producing a defect free processed region using the stepped square pin tool geometry. The presence of fine recrystallized grains (1.99 µm) and the absence of defects in the processed region lead to higher hardness and superior tensile properties.
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publishDate 2018-04-01
publisher Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
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spelling doaj.art-69bf3b49554a4a778a8dfa570213b66b2022-12-21T21:20:11ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392018-04-0121310.1590/1980-5373-mr-2017-0769Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium AlloySankar RamaiyanSenthil Kumar Velukkudi Santhanamhttps://orcid.org/0000-0003-3235-8202Puviyarasan MuthuguruIn this study, an effort has been made to choose an appropriate tool pin profile and rotational speed for a tool using a submerged friction stir processed hot rolled AZ31B magnesium alloy. A defect free process region was obtained using a novel tool shoulder, which consisted of a scroll. Three tool pin profiles, namely, simple cylindrical, stepped cylindrical and stepped square pin have been used. Tensile properties and fracture behavior revealed defect free friction stir processed specimens. The microstructural studies reveal the possibility of producing a defect free processed region using the stepped square pin tool geometry. The presence of fine recrystallized grains (1.99 µm) and the absence of defects in the processed region lead to higher hardness and superior tensile properties.http://www.scielo.br/pdf/mr/v21n3/1516-1439-mr-1980-5373-MR-2017-0769.pdfsubmerged friction stir processingmagnesium alloyTool PinMicrostructureFracture
spellingShingle Sankar Ramaiyan
Senthil Kumar Velukkudi Santhanam
Puviyarasan Muthuguru
Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
Materials Research
submerged friction stir processing
magnesium alloy
Tool Pin
Microstructure
Fracture
title Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
title_full Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
title_fullStr Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
title_full_unstemmed Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
title_short Effect of Scroll Pin Profile and Tool Rotational Speed on Mechanical Properties of Submerged Friction Stir Processed AZ31B Magnesium Alloy
title_sort effect of scroll pin profile and tool rotational speed on mechanical properties of submerged friction stir processed az31b magnesium alloy
topic submerged friction stir processing
magnesium alloy
Tool Pin
Microstructure
Fracture
url http://www.scielo.br/pdf/mr/v21n3/1516-1439-mr-1980-5373-MR-2017-0769.pdf
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