کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1618073 1005699 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and room temperature properties of a high-entropy TaNbHfZrTi alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Microstructure and room temperature properties of a high-entropy TaNbHfZrTi alloy
چکیده انگلیسی

A new refractory alloy, Ta20Nb20Hf20Zr20Ti20, produced by vacuum arc-melting followed by hot isostatic pressing (HIPing) at T = 1473 K and P = 207 MPa for 3 h has predominantly a single-phase body-centered cubic (BCC) structure with the lattice parameter a = 340.4 pm. The alloy density and Vickers microhardness are ρ = 9.94 g/cm3 and Hv = 3826 MPa. The alloy has high compression yield strength (σ0.2 = 929 MPa) and ductility (ɛ > 50%). The alloy shows considerable strain hardening and homogeneous deformation. A simple model of solid-solution strengthening is proposed to explain the behavior.


► A new high-strength refractory alloy, Ta20Nb20Hf20Zr20Ti20.
► The alloy has a BCC crystal structure. The lattice parameter a = 340.4 pm.
► The alloy density and Vickers microhardness are 9.94 g/cm3 and 3826 MPa.
► The compression yield stress σ0.2 = 929 MPa and ductility ɛ > 50%.
► The alloy shows considerable strain hardening and homogeneous deformation.
► A model of solid-solution strengthening is proposed to explain the behavior.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 509, Issue 20, 19 May 2011, Pages 6043–6048
نویسندگان
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