Phase transitions of eutectic high entropy alloy AlCoCrFeNi2.1 under shock compression
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866918280366653440 |
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| author | Parsons, Sophie E. Katagiri, Kento Chen, Hangman Hari, Anirudh Irvine, Sara J. Luccioni, Dorian Lin, Rayen Madril, Laura E. Reddy, Tharun McKinney, William J. Ren, Jie Yang, Wuxian Ozaki, Norimasa Amouretti, Alexis Kodama, Ryosuke Nakamura, Hirotaka Nakanishi, Yusuke Ota, Masato Seto, Yusuke Takagi, Sota Okuchi, Takuo Umeda, Yuhei Inubushi, Yuichi Miyanishi, Kohei Sueda, Keiichi Togashi, Tadashi Yabashi, Makina Yabuuchi, Toshinori Li, Wanghui Specht, Paul E. Cao, Penghui Chen, Wen Vohra, Yogesh K. Dresselhaus-Marais, Leora |
| author_facet | Parsons, Sophie E. Katagiri, Kento Chen, Hangman Hari, Anirudh Irvine, Sara J. Luccioni, Dorian Lin, Rayen Madril, Laura E. Reddy, Tharun McKinney, William J. Ren, Jie Yang, Wuxian Ozaki, Norimasa Amouretti, Alexis Kodama, Ryosuke Nakamura, Hirotaka Nakanishi, Yusuke Ota, Masato Seto, Yusuke Takagi, Sota Okuchi, Takuo Umeda, Yuhei Inubushi, Yuichi Miyanishi, Kohei Sueda, Keiichi Togashi, Tadashi Yabashi, Makina Yabuuchi, Toshinori Li, Wanghui Specht, Paul E. Cao, Penghui Chen, Wen Vohra, Yogesh K. Dresselhaus-Marais, Leora |
| contents | High entropy alloys (HEAs) are a new class of metals that exhibit unique mechanical performance. Among HEAs, additively manufactured eutectic high entropy alloys (AM-EHEAs) have recently emerged as candidate materials for use in extreme conditions due to their simultaneous high strength and ductility. However, the deformation and structural evolution of AM-EHEAs under conditions of high pressure have not been well characterized, limiting their use in extreme applications. We present dynamic compression experiments and molecular dynamics simulations studying the structural evolution of AM-EHEA AlCoCrFeNi2.1 when compressed to pressures up to 400 GPa. Our in-situ X-ray diffraction measurements capture the appearance of fcc and bcc phases at different pressure conditions, with pure- and mixed-phase regions. Understanding the phase stability and structural evolution of the AM EHEA offers new insights to guide the development of high-performance complex materials for extreme conditions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_13218 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Phase transitions of eutectic high entropy alloy AlCoCrFeNi2.1 under shock compression Parsons, Sophie E. Katagiri, Kento Chen, Hangman Hari, Anirudh Irvine, Sara J. Luccioni, Dorian Lin, Rayen Madril, Laura E. Reddy, Tharun McKinney, William J. Ren, Jie Yang, Wuxian Ozaki, Norimasa Amouretti, Alexis Kodama, Ryosuke Nakamura, Hirotaka Nakanishi, Yusuke Ota, Masato Seto, Yusuke Takagi, Sota Okuchi, Takuo Umeda, Yuhei Inubushi, Yuichi Miyanishi, Kohei Sueda, Keiichi Togashi, Tadashi Yabashi, Makina Yabuuchi, Toshinori Li, Wanghui Specht, Paul E. Cao, Penghui Chen, Wen Vohra, Yogesh K. Dresselhaus-Marais, Leora Materials Science High entropy alloys (HEAs) are a new class of metals that exhibit unique mechanical performance. Among HEAs, additively manufactured eutectic high entropy alloys (AM-EHEAs) have recently emerged as candidate materials for use in extreme conditions due to their simultaneous high strength and ductility. However, the deformation and structural evolution of AM-EHEAs under conditions of high pressure have not been well characterized, limiting their use in extreme applications. We present dynamic compression experiments and molecular dynamics simulations studying the structural evolution of AM-EHEA AlCoCrFeNi2.1 when compressed to pressures up to 400 GPa. Our in-situ X-ray diffraction measurements capture the appearance of fcc and bcc phases at different pressure conditions, with pure- and mixed-phase regions. Understanding the phase stability and structural evolution of the AM EHEA offers new insights to guide the development of high-performance complex materials for extreme conditions. |
| title | Phase transitions of eutectic high entropy alloy AlCoCrFeNi2.1 under shock compression |
| topic | Materials Science |
| url | https://arxiv.org/abs/2507.13218 |