TY - JOUR
T1 - Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys
AU - García-Bernal, M. A.
AU - Mishra, R. S.
AU - Verma, R.
AU - Hernández-Silva, D.
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/6/1
Y1 - 2015/6/1
N2 - Friction stir processing (FSP) has demonstrated to refine the microstructure of different alloys resulting in superior mechanical properties. Abnormal grain growth (AGG) has been recognized as a critical issue during hot deformation of FSPed Al alloys. 5083 Al alloys with different Mn content were subjected to heat treatments at 350 and 535. °C before FSP to avoid AGG during subsequent hot deformation. As a result, heat treatment of 350. °C was able to retard AGG significantly. Also, an improvement in the refinement of the microstructure was observed. Consequently, a better ductility of 861% at elevated temperature was reached in the alloy with lower Mn content comparing with the same alloy without heat treatment prior to FSP.
AB - Friction stir processing (FSP) has demonstrated to refine the microstructure of different alloys resulting in superior mechanical properties. Abnormal grain growth (AGG) has been recognized as a critical issue during hot deformation of FSPed Al alloys. 5083 Al alloys with different Mn content were subjected to heat treatments at 350 and 535. °C before FSP to avoid AGG during subsequent hot deformation. As a result, heat treatment of 350. °C was able to retard AGG significantly. Also, an improvement in the refinement of the microstructure was observed. Consequently, a better ductility of 861% at elevated temperature was reached in the alloy with lower Mn content comparing with the same alloy without heat treatment prior to FSP.
KW - 5083 Al alloys
KW - Abnormal grain growth
KW - Friction stir processing
KW - Superplasticity
UR - http://www.scopus.com/inward/record.url?scp=84928162161&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2015.03.094
DO - 10.1016/j.msea.2015.03.094
M3 - Artículo
SN - 0921-5093
VL - 636
SP - 326
EP - 330
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
ER -