DataVXAdvanced Engineering MaterialsPaper
journal article·2020-01Open access

Effect of Cu on Amorphization of a TiNi Alloy during HPT and Shape Memory Effect after Post‐Deformation Annealing

Hamed Shahmir, Mahmoud Nili-Ahmadabadi, Mahdi Mohammadi, Yi Huang, Mariusz Andrzejczuk, Małgorzata Lewandowska, Terence G. Langdon

Advanced Engineering Materials· Volume 22· Issue 1
Publisher pageOpen full text
Source abstract

Abstract

A ternary TiNiCu shape memory alloy is subjected to high‐pressure torsion (HPT) followed by post‐deformation annealing (PDA) to study the effect of Cu (5 at%) on amorphization after HPT processing and to investigate the microstructural evolution and shape memory effect (SME) after PDA. The results show that even after 20 revolutions the ternary alloy contains nanocrystalline areas and the microstructure is not fully amorphous. An easier martensite‐to‐austenite transformation and minor remaining austenite in the ternary alloy are responsible for suppressing amorphization. Post‐deformation annealing at 673 K provides nanocrystalline microstructures containing an R‐phase with a minor martensitic B19' phase in the ternary alloy. The SME of this alloy after PDA is not as satisfactory as that of the binary alloy processed through similar conditions because of the existence of a high volume fraction of the R‐phase. However, the total recovered strain of the ternary alloy after PDA for 30 min has a maximum value of 6.5%.
Source: crossref · Quality: baseline

Research context

Metals & alloysNanomaterialsMaterials processing

OpenAlex topics: Shape Memory Alloy Transformations · Microstructure and mechanical properties · Microstructure and Mechanical Properties of Steels

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Metallurgy and Materials Engineering College of Engineering University of Tehran North Kargar St. Tehran 11155456 Iran

Department of Mining and Metallurgical Engineering Amirkabir University of Technology Hafez Ave, Valiasr Square Tehran 1591634311 Iran

Department of Design and Engineering Faculty of Science and Technology Bournemouth University Poole Dorset BH12 5BB UK

Faculty of Materials Science and Engineering Warsaw University of Technology Woloska 141 02-507 Warsaw Poland

Materials Research Group Department of Mechanical Engineering University of Southampton Southampton SO17 1BJ UK

Funding

European Research Council

References (35)

Show source-provided references
1. Wayman C. M. · 1964
2. Otsuka K. · 1999
3. 10.1179/imr.1986.31.1.9310.1179/imr.1986.31.1.93 ↗
4. 10.1016/S1359-6462(00)00543-110.1016/S1359-6462(00)00543-1 ↗
5. Miyazaki S. · J. Phys., Colloq. · 1982 · 43 · 255
6. 10.1016/j.actamat.2013.08.01810.1016/j.actamat.2013.08.018 ↗
7. 10.1016/j.pmatsci.2008.03.00210.1016/j.pmatsci.2008.03.002 ↗
8. 10.1007/s10853-012-6579-810.1007/s10853-012-6579-8 ↗
9. 10.1016/j.msea.2018.08.01910.1016/j.msea.2018.08.019 ↗
10. 10.1016/j.pmatsci.2004.10.00110.1016/j.pmatsci.2004.10.001 ↗
11. 10.1016/j.msea.2005.08.07110.1016/j.msea.2005.08.071 ↗
12. 10.1016/S0921-5093(02)00122-310.1016/S0921-5093(02)00122-3 ↗
13. 10.1016/j.actamat.2004.08.00310.1016/j.actamat.2004.08.003 ↗
14. 10.1016/j.actamat.2005.02.03210.1016/j.actamat.2005.02.032 ↗
15. 10.1007/s10853-013-7985-210.1007/s10853-013-7985-2 ↗
16. 10.1016/S1359-6462(03)00395-610.1016/S1359-6462(03)00395-6 ↗
17. 10.1016/j.msea.2015.12.08610.1016/j.msea.2015.12.086 ↗
18. 10.1016/j.tca.2016.01.01510.1016/j.tca.2016.01.015 ↗
19. 10.1007/s10853-015-8957-510.1007/s10853-015-8957-5 ↗
20. 10.1016/j.msea.2015.01.07210.1016/j.msea.2015.01.072 ↗
21. 10.1016/j.actamat.2003.08.03610.1016/j.actamat.2003.08.036 ↗
22. 10.1080/0141861880820468010.1080/01418618808204680 ↗
23. 10.1007/BF0264444210.1007/BF02644442 ↗
24. 10.1016/j.msea.2014.12.05610.1016/j.msea.2014.12.056 ↗
25. 10.2320/matertrans1989.31.95910.2320/matertrans1989.31.959 ↗
26. 10.1007/s11661-000-0187-y10.1007/s11661-000-0187-y ↗
27. 10.1016/j.msea.2011.07.04010.1016/j.msea.2011.07.040 ↗
28. 10.1016/j.actamat.2012.02.02710.1016/j.actamat.2012.02.027 ↗
29. Cullity B. D. · 2001
30. 10.1016/j.msea.2006.03.15110.1016/j.msea.2006.03.151 ↗
31. 10.1016/j.scriptamat.2008.05.00410.1016/j.scriptamat.2008.05.004 ↗
32. 10.1016/j.scriptamat.2009.02.05510.1016/j.scriptamat.2009.02.055 ↗
33. 10.1557/JMR.1990.141410.1557/JMR.1990.1414 ↗
34. 10.1016/S1359-6462(01)00740-010.1016/S1359-6462(01)00740-0 ↗
35. 10.1016/j.intermet.2014.04.01310.1016/j.intermet.2014.04.013 ↗