Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys

M. A. García-Bernal; R. S. Mishra; R. Verma; D. Hernández-Silva

doi:10.1016/j.msea.2015.03.094

Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys

M. A. García-Bernal, R. S. Mishra, R. Verma, D. Hernández-Silva

Escuela Superior de Ingeniería Mecánica y Eléctrica (ESIME), Unidad Ticomán

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30 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	326-330
Number of pages	5
Journal	Materials Science and Engineering A
Volume	636
DOIs	https://doi.org/10.1016/j.msea.2015.03.094
State	Published - 1 Jun 2015

Keywords

5083 Al alloys
Abnormal grain growth
Friction stir processing
Superplasticity

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10.1016/j.msea.2015.03.094

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title = "Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys",

abstract = "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.",

keywords = "5083 Al alloys, Abnormal grain growth, Friction stir processing, Superplasticity",

author = "Garc{\'i}a-Bernal, {M. A.} and Mishra, {R. S.} and R. Verma and D. Hern{\'a}ndez-Silva",

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doi = "10.1016/j.msea.2015.03.094",

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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.

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

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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 -

Inhibition of abnormal grain growth during hot deformation behavior of friction stir processed 5083 Al alloys

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