Preparation of High-Temperature Multicomponent Alloys by Mechanochemical Synthesis from Refractory Elements
- Авторлар: Portnoi V.K.1, Leonov A.V.1, Gusakov M.S.2, Logachev I.A.2, Fedotov S.A.3
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Мекемелер:
- Faculty of Chemistry, Moscow State University
- OAO Kompozit
- Dukhov All-Russia Research Institute of Automatics
- Шығарылым: Том 55, № 2 (2019)
- Беттер: 195-199
- Бөлім: Article
- URL: https://journals.rcsi.science/0020-1685/article/view/158649
- DOI: https://doi.org/10.1134/S0020168519010084
- ID: 158649
Дәйексөз келтіру
Аннотация
Highly dispersed powders of two-phase multicomponent alloys have been prepared by mechanochemical synthesis from Hf0.5Nb0.5Ta0.5Ti1.5Zr1 (composition 1) and HfNbTaTiZrMo (composition 2) refractory-metal mixtures in a Fritsch (P-7) planetary mill under an Ar atmosphere. Two solid solutions, with BCC and HCP lattices, were obtained from the five-component mixture (composition 1). In the case of the six-component mixture (composition 2), both solid solutions had BCC lattices. Using compaction by hot isostatic pressing at a temperature of 1200°C, we obtained dense samples. Mechanical tests in compression showed a combination of high strength and plasticity. For sample 1, we obtained a yield stress σy = 1317 MPa, compressive breaking stress σb = 1340 MPa, and relative breaking spread of 7%. Even better results were obtained for sample 2: σy = 2153 MPa and σb = 2165 MPa, with δ = 10%.
Негізгі сөздер
Авторлар туралы
V. Portnoi
Faculty of Chemistry, Moscow State University
Хат алмасуға жауапты Автор.
Email: valeri.portnoy@gmail.com
Ресей, Moscow, 119899
A. Leonov
Faculty of Chemistry, Moscow State University
Email: valeri.portnoy@gmail.com
Ресей, Moscow, 119899
M. Gusakov
OAO Kompozit
Email: valeri.portnoy@gmail.com
Ресей, Pionerskaya ul. 4, Korolev, Moscow oblast, 141074
I. Logachev
OAO Kompozit
Email: valeri.portnoy@gmail.com
Ресей, Pionerskaya ul. 4, Korolev, Moscow oblast, 141074
S. Fedotov
Dukhov All-Russia Research Institute of Automatics
Email: valeri.portnoy@gmail.com
Ресей, Sushchevskaya ul. 22, Moscow, 127055
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