In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf high temperature shape memory alloy fabricated by laser powder bed fusion
| العنوان: | In-situ synchrotron X-ray diffraction analysis of the elastic behaviour of martensite and H-phase in a NiTiHf high temperature shape memory alloy fabricated by laser powder bed fusion |
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| المؤلفون: | Mohammadreza Nematollahi, Mohammad Elahinia, Zhi Zeng, Emad Maawad, R.N. Vasin, Behrang Poorganji, Jiajia Shen, Keyvan Safaei, João Pedro Oliveira, Norbert Schell |
| المساهمون: | DEMI - Departamento de Engenharia Mecânica e Industrial, UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial |
| المصدر: | Additive Manufacturing Letters, Vol 1, Iss, Pp 100003-(2021) Additive Manufacturing Letters 1, 100003 (2021). doi:10.1016/j.addlet.2021.100003 |
| بيانات النشر: | Deutsches Elektronen-Synchrotron, DESY, Hamburg, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Diffraction, laser powder bed fusion, Materials science, Precipitation (chemistry), Additive manufacturing, synchrotron radiation, Industrial engineering. Management engineering, Shape-memory alloy, martensite, T55.4-60.8, Microstructure, Synchrotron, law.invention, law, Martensite, Laser powder bed fusion, Texture (crystalline), NiTiHf shape memory alloys, H-phase, Composite material, Deformation (engineering), Synchrotron radiationmartensite, ddc:600, additive manufacturing |
| الوصف: | Additive Manufacturing Letters 1, 100003 (2021). doi:10.1016/j.addlet.2021.100003 High temperature shape memory alloys of the Ni-Ti-Hf system are potential candidates for aerospace applications where powder bed additive manufacturing technologies are being increasingly used. In this work, a Ti-rich NiTiHf high temperature shape memory alloy powder was processed by laser powder bed fusion. The standard heat treatment of 550 0 C for 3 hours was imposed to promote H-phase precipitation. At room temperature, the material has a dual-phase microstructure composed of martensite, the matrix, and H-phase, as a strengthening precipitate. High energy synchrotron X-ray diffraction is used to evaluate, in-situ, the elastic behaviour of the fabricated part. The deformation anisotropy of several (h k l) families of planes of both phases is evidenced. No major texture changes were observed upon macroscopic elastic loading. We illustrate the potential of using high energy synchrotron X-ray diffraction for detailed analyses of minority phases in additively manufactured components. Published by Elsevier, Amsterdam |
| اللغة: | English |
| DOI: | 10.3204/pubdb-2021-03520 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b46856e895a19cb4ed66791fdb7a142 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....6b46856e895a19cb4ed66791fdb7a142 |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.3204/pubdb-2021-03520 |
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