TY - CHAP

T1 - Process characteristics of constrained friction processing of AM50 magnesium alloy

AU - de Castro, Camila C.

AU - Shen, Junjun

AU - Dos Santos, Jorge F.

AU - Klusemann, Benjamin

N1 - Conference code: 26

PY - 2023/4/19

Y1 - 2023/4/19

N2 - Constrained Friction Processing (CFP) is a novel solid-state technique suitable to produce rods especially from lightweight materials. The technology is particularly interesting to overcome the processing challenges associated with Mg due to its hexagonal close-packed (hcp) structure. The process is a variation of the refill friction stir spot welding (refill FSSW) technique, and is performed by plunging the rotating shoulder into the base material, which causes the material to be extruded into the cavity crated by the retraction of the rotating probe and, at the same time, being constrained by it. The complex shear and the heat generated during the process causes metallurgical transformations in the material, such as dynamic recrystallization, allowing for substantial grain refinement to micro-or even submicro-scale. In this study, real time data – torque, axial force and temperature – acquired from the process are analyzed in order to present, for the first time, a description of the CFP technique. Furthermore, the resultant features of the microstructure of a refined rod is explored.

AB - Constrained Friction Processing (CFP) is a novel solid-state technique suitable to produce rods especially from lightweight materials. The technology is particularly interesting to overcome the processing challenges associated with Mg due to its hexagonal close-packed (hcp) structure. The process is a variation of the refill friction stir spot welding (refill FSSW) technique, and is performed by plunging the rotating shoulder into the base material, which causes the material to be extruded into the cavity crated by the retraction of the rotating probe and, at the same time, being constrained by it. The complex shear and the heat generated during the process causes metallurgical transformations in the material, such as dynamic recrystallization, allowing for substantial grain refinement to micro-or even submicro-scale. In this study, real time data – torque, axial force and temperature – acquired from the process are analyzed in order to present, for the first time, a description of the CFP technique. Furthermore, the resultant features of the microstructure of a refined rod is explored.

KW - Constrained Friction Processing

KW - Fine Grains

KW - Mg Alloy

KW - Solid-State Processing

KW - Engineering

KW - Constrained Friction Processing

KW - Fine Grains

KW - Mg Alloy

KW - Solid-State Processing

UR - http://www.scopus.com/inward/record.url?scp=85160218950&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/cd86c98e-5f72-39c6-b058-130845f48d18/

U2 - 10.21741/9781644902479-188

DO - 10.21741/9781644902479-188

M3 - Article in conference proceedings

AN - SCOPUS:85160218950

SN - 978-1-64490-246-2

VL - 3

T3 - Materials Research Proceedings

SP - 1739

EP - 1746

BT - Material Forming

A2 - Madej, Lukasz

A2 - Sitko, Mateusz

A2 - Perzynski, Konrad

PB - MaterialsResearchForum LLC

CY - Millersville

T2 - 26th International ESAFORM Conference on Material Forming 2023

Y2 - 19 April 2023 through 21 April 2023

ER -