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High temperature tensile deformation in single-pass friction stirred AZ31 alloy
Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University (formerly known as Pandit Deendayal Petroleum University), Raisan, Gandhinagar (IND).
Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University (formerly known as Pandit Deendayal Petroleum University), Raisan, Gandhinagar (IND).
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avdelningen för svetsteknologi (SV). (KAMPT)ORCID-id: 0000-0002-9015-7372
2023 (engelsk)Inngår i: International Journal of Lightweight Materials and Manufacture, ISSN 2589-7225, Vol. 6, nr 1, s. 140-148Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The present study has expounded the effect of high temperatures on the tensile deformation of AZ31 magnesium alloy processed through a single-pass of friction stir processing (FSP). The major operation parameters, namely rotation speed and traverse speed of the FSP tool, were varied which led to extensive dynamic recrystallization (DRX) in the stir zone (SZ) engendering maximum grain refinement of about 63% as compared to the base metal. The lowest average grain size ∼ 5.66 μm was attained after a single FSP pass. Optical microscopy (OM) was followed by the uniaxial tensile tests at three different temperatures of 350, 400 and 450 ºC at a constant strain rate of 1.3 × 10−3/s. As the deformation temperature was raised, the flow stress reduced and led to appreciable increments in the processed material’s tensile elongations. The maximal elongation to fracture of 160% was observed in the friction stir processed (FSPed) sample possessing the finest grains. 

sted, utgiver, år, opplag, sider
KeAi Publishing Communications Ltd. , 2023. Vol. 6, nr 1, s. 140-148
Emneord [en]
Dynamic recrystallization; Elongation; Friction; Friction stir welding; Grain refinement; Grain size and shape; Magnesium alloys; Tensile testing; AZ31 alloy; AZ31 magnesium alloy; Friction stir processing; High-temperature tensile; Highest temperature; Operation parameters; Refinement; Rotation speed; Single pass; Tensile deformation; Strain rate
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URN: urn:nbn:se:hv:diva-19291DOI: 10.1016/j.ijlmm.2022.09.003Scopus ID: 2-s2.0-85138794740OAI: oai:DiVA.org:hv-19291DiVA, id: diva2:1720665
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CC BY-NC-ND 4.0

The authors gratefully acknowledge the relevant assistance and valuable guidance provided throughout the experimental and testing phase under the sponsored project of ISRO (E33011/60/2010-V) by the Department of Mechanical Engineering, Pandit Deendayal Energy University (formerly known as Pandit Deendayal Petroleum University), Gujarat, India.

Tilgjengelig fra: 2022-12-20 Laget: 2022-12-20 Sist oppdatert: 2024-01-08bibliografisk kontrollert

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