Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials
High-strength crystalline/amorphous composites materials based on (Ti-Ni)-(Cu-Zr) system were developed. The optimal concentrations of additional alloying elements Al, Fe, and Cr were obtained. Structural investigations were carried out using X-ray diffraction equipment (XRD) and scanning electron m...
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MDPI AG
2020-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/7/874 |
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| author | Andrey A. Tsarkov Vladislav Yu. Zadorozhnyy Alexey N. Solonin Dmitri V. Louzguine-Luzgin |
| author_facet | Andrey A. Tsarkov Vladislav Yu. Zadorozhnyy Alexey N. Solonin Dmitri V. Louzguine-Luzgin |
| author_sort | Andrey A. Tsarkov |
| collection | DOAJ |
| description | High-strength crystalline/amorphous composites materials based on (Ti-Ni)-(Cu-Zr) system were developed. The optimal concentrations of additional alloying elements Al, Fe, and Cr were obtained. Structural investigations were carried out using X-ray diffraction equipment (XRD) and scanning electron microscope (SEM) with an energy-dispersive X-ray module (EDX). It was found that additives of aluminum and chromium up to 5 at% dissolve well into the solid matrix solution of the NiTi phase. At a concentration of 5 at%, the precipitation of the unfavorable NiTi<sub>2</sub> phase occurs, which, as a result, leads to a dramatic decrease in ductility. Iron dissolves very well in the solid solution of the matrix phase due to chemical affinity with nickel. The addition of iron does not cause the precipitation of the NiTi<sub>2</sub> phase in the concentration range of 0–8 at%, but with an increase in concentration, this leads to a decrease in the mechanical properties of the alloy. The mechanical behavior of alloys was studied in compression test conditions on a universal testing machine. The developed alloys have a good combination of strength and ductility due to their dual-phase structure. It was shown that additional alloying elements lead to a complete suppression of the martensitic transformation in the alloys. |
| first_indexed | 2024-03-10T18:45:56Z |
| format | Article |
| id | doaj.art-e029c9e78b6b49ea9e842554210bafc4 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T18:45:56Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-e029c9e78b6b49ea9e842554210bafc42023-11-20T05:32:31ZengMDPI AGMetals2075-47012020-07-0110787410.3390/met10070874Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite MaterialsAndrey A. Tsarkov0Vladislav Yu. Zadorozhnyy1Alexey N. Solonin2Dmitri V. Louzguine-Luzgin3National University of Science and Technology (MISIS), Leninsky Prosp, 4, Moscow 119049, RussiaNational University of Science and Technology (MISIS), Leninsky Prosp, 4, Moscow 119049, RussiaNational University of Science and Technology (MISIS), Leninsky Prosp, 4, Moscow 119049, RussiaWPI Advanced Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-Ku, Sendai 980-8577, JapanHigh-strength crystalline/amorphous composites materials based on (Ti-Ni)-(Cu-Zr) system were developed. The optimal concentrations of additional alloying elements Al, Fe, and Cr were obtained. Structural investigations were carried out using X-ray diffraction equipment (XRD) and scanning electron microscope (SEM) with an energy-dispersive X-ray module (EDX). It was found that additives of aluminum and chromium up to 5 at% dissolve well into the solid matrix solution of the NiTi phase. At a concentration of 5 at%, the precipitation of the unfavorable NiTi<sub>2</sub> phase occurs, which, as a result, leads to a dramatic decrease in ductility. Iron dissolves very well in the solid solution of the matrix phase due to chemical affinity with nickel. The addition of iron does not cause the precipitation of the NiTi<sub>2</sub> phase in the concentration range of 0–8 at%, but with an increase in concentration, this leads to a decrease in the mechanical properties of the alloy. The mechanical behavior of alloys was studied in compression test conditions on a universal testing machine. The developed alloys have a good combination of strength and ductility due to their dual-phase structure. It was shown that additional alloying elements lead to a complete suppression of the martensitic transformation in the alloys.https://www.mdpi.com/2075-4701/10/7/874composite materialsmechanical properties improvementstructure–property relationsmetallic glass compositeamorphous materialsmartensite phase |
| spellingShingle | Andrey A. Tsarkov Vladislav Yu. Zadorozhnyy Alexey N. Solonin Dmitri V. Louzguine-Luzgin Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials Metals composite materials mechanical properties improvement structure–property relations metallic glass composite amorphous materials martensite phase |
| title | Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials |
| title_full | Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials |
| title_fullStr | Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials |
| title_full_unstemmed | Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials |
| title_short | Effect of Aluminum, Iron and Chromium Alloying on the Structure and Mechanical Properties of (Ti-Ni)-(Cu-Zr) Crystalline/Amorphous Composite Materials |
| title_sort | effect of aluminum iron and chromium alloying on the structure and mechanical properties of ti ni cu zr crystalline amorphous composite materials |
| topic | composite materials mechanical properties improvement structure–property relations metallic glass composite amorphous materials martensite phase |
| url | https://www.mdpi.com/2075-4701/10/7/874 |
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