Structure, mechanical properties, and oxidation behaviour of a refractory (CrHfMoNbTaTiVZr)84Si16 complex concentrated alloy

IF 4.2 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2024-11-03 DOI:10.1016/j.ijrmhm.2024.106949

N. Yurchenko , E. Panina , V. Mirontsov , D. Kapustin , M. Mishunin , S. Zherebtsov , N. Stepanov

引用次数: 0

Abstract

Herein, structure, mechanical properties, and oxidation behaviour of a refractory (CrHfMoNbTaTiVZr)₈₄Si₁₆ complex concentrated alloy (RCCA) prepared by vacuum arc melting were studied. Consisting of C11_b-MeSi₂, C14 Laves, bcc, and Me₅Si₃ phases, the alloy exhibited better 1200 °C-specific yield strength (45 MPa cm³ g⁻¹), fracture toughness (5.77 ± 1.58 MPa m^1/2), and 1 h-mass gain at 1200 °C (∼60 mg cm⁻²) than most of current RCCAs.

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难熔 (CrHfMoNbTaTiVZr)84Si16 复合浓缩合金的结构、机械性能和氧化行为

本文研究了通过真空电弧熔炼制备的难熔（CrHfMoNbTaTiVZr）84Si16 复合浓缩合金（RCCA）的结构、力学性能和氧化行为。该合金由 C11b-MeSi2、C14 Laves、bcc 和 Me5Si3 相组成，与目前大多数 RCCA 相比，具有更好的 1200 °C 特定屈服强度（45 MPa cm3 g-1）、断裂韧性（5.77 ± 1.58 MPa m1/2）和 1200 °C 1 h 质量增益（60 mg cm-2）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.