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Gupta, M.. High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2018.
High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing
Name: Dharmendra, C.
Organization :
City University of Hong Kong. Department of Mechanical and Biomedical Engineering
Name: Rao, K.P.
Organization :
City University of Hong Kong. Department of Mechanical and Biomedical Engineering
Email :
mekprao@cityu.edu.hk
Name: Prasad, Y.V.R.K.
Organization :
City University of Hong Kong. Department of Mechanical and Biomedical Engineering
Name: Suresh, K.
Organization :
City University of Hong Kong. Department of Mechanical and Biomedical Engineering
Name: Gupta, M.
Organization :
National University of Singapore. Department of Mechanical Engineering
keyword:
Thermomechanical processing
ThaSH:
Magnesium
ThaSH:
Nanocomposites (Materials)
ThaSH:
Microstructure
Abstract:
The hot-deformation behavior of AZ31-2Ca-1.5 percent nano-alumina composite prepared.
by disintegrated melt deposition (DMD) processing technique has been studied. The composite
has very fine grain size (2-3 um) along with a (Mg.AI)2Ca intermetallic particles distributed
uniformly along with nano-alumina. A processing map has been developed in the temperature
range 250-500 °C and strain rate range 0.0003-10 s-1, which exhibited three domains in the
temperature and sprain rate ranges: (1) 250-275 °C /0.003-0.3 s-1 (2) 375-500 °C /0.0003-0.3 s-1
and (3) 275-375 °C/0.3-10 s-1. In Domain (1), dynamic recovery occurs followed by post-
deformation recrystallization, while in Domains (2) and (3), dynamic recrystallization (DRX)
occurs as confirmed by microstructural observation and kinetic analysis. In view of the higher
temperatures, the mechanism of DRX in Domain 2 involves second-order pyramidal slip and
recovery by cross-slip. In Domain (3), which exists at lower temperatures and higher strain rates,
DRX occurs with recovery occurring by grain boundary self-diffusion controlled climb. Both
DRX domains conditions are suitable for processing of this composite although Domain (3) is
preferable for high productivity.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2018
Modified:
2025-06-18
Issued:
2025-06-18
บทความ/Article
application/pdf
BibliograpyCitation :
In Thammasat University Faculty of Engineering. The 9th TSME International Conference on Mechanical Engineering 2018 (TSME-ICoME9) (pp.283-290) Pathum Thani : Thammasat University
eng
©copyrights King Mongkut's University of Technology North Bangkok
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Dharmendra, C.
| Title | Contributor | Type |
|---|---|---|
| High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Dharmendra, C.;Rao, K.P.;Prasad, Y.V.R.K.;Suresh, K.;Gupta, M. | บทความ/Article |
Rao, K.P.
| Title | Contributor | Type |
|---|---|---|
| High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Dharmendra, C.;Rao, K.P.;Prasad, Y.V.R.K.;Suresh, K.;Gupta, M. | บทความ/Article |
Prasad, Y.V.R.K.
| Title | Contributor | Type |
|---|---|---|
| High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Dharmendra, C.;Rao, K.P.;Prasad, Y.V.R.K.;Suresh, K.;Gupta, M. | บทความ/Article |
Suresh, K.
Gupta, M.
| Title | Contributor | Type |
|---|---|---|
| High temperature deformation behavior and processing map of AZ31-2Ca-1.5 vol. percent nano-alumina magnesium composite made by disintegrated melt deposition (DMD) processing
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Dharmendra, C.;Rao, K.P.;Prasad, Y.V.R.K.;Suresh, K.;Gupta, M. | บทความ/Article |