NDLI: Microstructure, Texture, and Superplasticity of a Fine-Grained Mg-Gd-Zr Alloy Processed by Equal-Channel Angular Pressing

Content Provider	Springer Nature Link
Author	Alizadeh, R. Mahmudi, R. Ngan, A. H. W. Pereira, P. H. R. Huang, Y. Langdon, T. G.
Copyright Year	2016
Abstract	There are limited reports to date on the microstructure and superplasticity of the Mg-Gd alloys after processing by equal-channel angular pressing (ECAP). Accordingly, the effects of ECAP temperature from 473 K to 723 K (200 °C to 450 °C) and number of passes (2, 4, and 8) on the microstructure and texture of an extruded Mg-5Gd-0.4Zr (GW50) alloy were investigated by scanning electron microscope, transmission electron microscope, and electron backscattered diffraction. The results show that the optimum ECAP temperature is 623 K (350 °C). Higher temperatures give extensive grain growth and the material has insufficient formability at lower temperatures. The results show also that the alloy exhibits no further grain refinement after four ECAP passes and there is slight grain growth at 8 ECAP passes. Samples were processed by four passes at 623 K (350 °C) and then subjected to shear punch testing. The results confirm the occurrence of superplastic behavior at 723 K (450 °C) with a maximum strain rate sensitivity index of ~0.47 and an activation energy of ~110 kJ mol$^{−1}$. The results are consistent with the occurrence of flow by grain boundary sliding in the superplastic region.
Starting Page	6056
Ending Page	6069
Page Count	14
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	47
Issue Number	12
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2016-09-19
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Microstructure and Low-Temperature Superplasticity of Fine-Grain ZK60 Magnesium Alloy Produced by Equal-Channel Angular Pressing

Microstructure and Mechanical Properties of a Mg-Sm-Gd-Zn-Zr Alloy Processed by Heat Treatment

Microstructure and mechanical properties of ultrafine grained Mg15Al alloy processed by equal-channel angular pressing

Influence of Processing Severity During Equal-Channel Angular Pressing on the Microstructure of an Al-Zn-Mg-Cu Alloy

Microstructure and Mechanical Properties of Ultra-fine-Grained Al-Mg-Si Tubes Produced by Parallel Tubular Channel Angular Pressing Process

Evaluating the Superplastic Flow of a Magnesium AZ31 Alloy Processed by Equal-Channel Angular Pressing

Microstructure and Mechanical Properties of Ultrafine-Grained Copper Produced Using Intermittent Ultrasonic-Assisted Equal-Channel Angular Pressing

Microstructure Evolution and Mechanical Properties of Al-1080 Processed by a Combination of Equal Channel Angular Pressing and High Pressure Torsion

Recovery of Ductility in Ultrafine-Grained Low-Carbon Steel Processed Through Equal-Channel Angular Pressing Followed by Cold Rolling and Flash Annealing

Microstructure, Texture, and Superplasticity of a Fine-Grained Mg-Gd-Zr Alloy Processed by Equal-Channel Angular Pressing

Similar Documents

Microstructure and Low-Temperature Superplasticity of Fine-Grain ZK60 Magnesium Alloy Produced by Equal-Channel Angular Pressing

Microstructure and Mechanical Properties of a Mg-Sm-Gd-Zn-Zr Alloy Processed by Heat Treatment

Microstructure and mechanical properties of ultrafine grained Mg15Al alloy processed by equal-channel angular pressing

Influence of Processing Severity During Equal-Channel Angular Pressing on the Microstructure of an Al-Zn-Mg-Cu Alloy

Microstructure and Mechanical Properties of Ultra-fine-Grained Al-Mg-Si Tubes Produced by Parallel Tubular Channel Angular Pressing Process

Evaluating the Superplastic Flow of a Magnesium AZ31 Alloy Processed by Equal-Channel Angular Pressing

Microstructure and Mechanical Properties of Ultrafine-Grained Copper Produced Using Intermittent Ultrasonic-Assisted Equal-Channel Angular Pressing

Microstructure Evolution and Mechanical Properties of Al-1080 Processed by a Combination of Equal Channel Angular Pressing and High Pressure Torsion

Recovery of Ductility in Ultrafine-Grained Low-Carbon Steel Processed Through Equal-Channel Angular Pressing Followed by Cold Rolling and Flash Annealing

Microstructure, Texture, and Superplasticity of a Fine-Grained Mg-Gd-Zr Alloy Processed by Equal-Channel Angular Pressing