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Effect of severe co...
Effect of severe cold-rolling and annealing on microstructure and mechanical properties of AlCoCrFeNi 2.1 eutectic high entropy alloy
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- Wani, I. S. (författare)
- Indian Institute of Technology Hyderabad
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- Bhattacharjee, T. (författare)
- Kyoto University
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- Sheikh, Saad Ahmed, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lu, Y. (författare)
- Dalian University of Technology
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- Chatterjee, S. (författare)
- Indian Institute of Technology Hyderabad
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- Guo, Sheng, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bhattacharjee, P. P. (författare)
- Indian Institute of Technology Hyderabad
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- Tsuji, N. (författare)
- Kyoto University
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: IOP Conference Series: Materials Science and Engineering. - 1757-8981 .- 1757-899X. ; 194:1
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- The possibility of microstructural refinement and improvement of mechanical properties by severe cold-rolling was investigated in an AlCoCrFeNi2.1 lamellar eutectic high entropy alloy (EHEA). The as-cast alloy revealed fine scale eutectic mixture of L12 (ordered FCC) and B2 (ordered BCC) phases. During severe cold-rolling up to 90% reduction in thickness the B2 phase maintained the ordered structure, while the L12 phase showed the evolution of a nanocrystalline structure and progressive disordering. Annealing of the severely cold-rolled material resulted in the formation of duplex microstructures composed of two different phases with equiaxed morphologies and significant resistance to grain growth up to 1200°C. Annealing at 1000°C resulted in an optimum strength-ductility balance with the tensile strength of 1175 MPa and the total elongation of 23%. The present results showed that severe cold-rolling and annealing can impart very attractive mechanical properties in complex EHEAs.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
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- kon (ämneskategori)
- ref (ämneskategori)
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