Structure and Properties of Filler Composite Materials Based on an Intermetallic-Reinforced B83 Alloy

IF 0.3 Q4 METALLURGY & METALLURGICAL ENGINEERING Russian Metallurgy (Metally) Pub Date : 2025-02-10 DOI:10.1134/S0036029524702094

R. S. Mikheev, P. A. Bykov, I. E. Kalashnikov, I. V. Katin, L. I. Kobeleva, A. G. Kolmakov

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Abstract

The structure and properties of filler rods made of a B83 alloy reinforced with Al–Bi or Ti₂NbAl intermetallic particles less than 100 μm in size in an amount of 3 wt % are studied. The rods are extruded from powder compositions and are intended for the deposition of antifriction coatings. Reinforcement is shown to increase the homogeneity of the grain structure of the B83 matrix alloy and promotes its refining: 66 and 68% of SnSb intermetallic crystals have a surface area of 2000–5000 μm² in the case of reinforcement with Al–Bi and Ti₂NbAl particles, respectively, and 33% of the SnSb crystals in the matrix alloy have a surface area exceeding 5000 μm². The filler materials made of the developed powder compositions are superior to the B83 cast alloy in the fluidity parameters and tribotechnical properties. The best fluidity indicators of the weld pool and the lowest friction coefficient are achieved using Ti₂NbAl-containing filler rods.

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金属间化合物增强B83合金填充复合材料的组织与性能

研究了尺寸小于100 μm的Al-Bi或Ti2NbAl金属间颗粒添加量为3wt %增强B83合金填充棒的组织和性能。该棒是从粉末组合物中挤出的，用于沉积抗摩擦涂层。结果表明：Al-Bi和Ti2NbAl增强后，有66%和68%的SnSb金属间晶体的表面积在2000 ~ 5000 μm2之间，33%的SnSb晶体的表面积超过5000 μm2。用所研制的粉末成分制备的填充材料在流动性参数和摩擦技术性能上均优于B83铸造合金。采用含ti2nbal填料棒，熔池流动性指标最佳，摩擦系数最低。

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来源期刊

Russian Metallurgy (Metally) METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

0.70

自引率

25.00%

发文量

140

期刊介绍： Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.