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

Autor:	Sankar Ramaiyan, Senthil Kumar Velukkudi Santhanam, Puviyarasan Muthuguru
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	submerged friction stir processing magnesium alloy Tool Pin Microstructure Fracture Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research, Vol 21, Iss 3 (2018)
Druh dokumentu:	article
ISSN:	1516-1439 1980-5373
DOI:	10.1590/1980-5373-mr-2017-0769
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/69bf3b49554a4a778a8dfa570213b66b Zobrazit plný text záznamu View record in DOAJ