Ti3Al matrix alloy refined and reinforced by in-situ synthesized SiCw/Nb4C3 core-shell structure

被引：5
|
作者：
Cui, Sen [1 ]
Cui, Chunxiang [1 ]
Kang, Licong [1 ]
Liu, Shuangjin [1 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Technol, Key Lab New Type Funct Mat Hebei Prov, 8,Rd 1, Tianjin 300130, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 860卷
基金：
中国国家自然科学基金;
关键词：
Intermetallics; Interface; Metal matrix composites; Microstructure; GAMMA-TIAL ALLOY; MECHANICAL-PROPERTIES; GRAIN-REFINEMENT; MICROSTRUCTURE; COMPOSITES; BEHAVIOR; INOCULANT; STRENGTH; ALUMINUM;
D O I：
10.1016/j.jallcom.2020.158423
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hot deformation as a general fabrication method for Titanium-Aluminum alloy could enhance the mechanical properties due to the refining of grain size and lamellar width. Compared with the hot deformation method, here we report a casting strategy in which a Ti3Al matrix alloy was effectively reinforced by in situ ceramic particles meanwhile modified by inoculants. The average lamellar width is refined from about 3300 nm to about 37 nm. Samples exhibit an ultimate compressive strength of 2.76 GPa with a strain of 17.3%. SiC/Nb4C3 core-shell structure was observed in the interface between reinforcement and matrix, and its interface microstructure was studied in detail. (C) 2020 Elsevier B.V. All rights reserved.
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页数：10
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