The effects of thermal deformation temperatures on microstructure and mechanical properties of TiBw/Ti60 composites synthesized by SPS

被引：3
作者：
Zhang, Yueting [1 ]
Wang, Bo [1 ,2 ]
Zhang, Haobiao [1 ]
Li, Yang [1 ]
机构：
[1] Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China
[2] Shanghai Collaborat Innovat Ctr Laser Adv Mfg Tec, Shanghai 201620, Peoples R China
来源：
MATERIALS RESEARCH EXPRESS | 2021年 / 8卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Titanium matrix composite; Spark plasma sintering; Microstructure; Thermal deformation; Mechanical properties; TITANIUM MATRIX COMPOSITES; TENSILE PROPERTIES; ALLOY; TI; ARCHITECTURE; EVOLUTION; STRENGTH; BEHAVIOR;
D O I：
10.1088/2053-1591/abf76d
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, 1vol.%, 3vol.% and 5vol.% TiBw/Ti60 composites were fabricated by spark plasma sintering (SPS) at 1150 degrees C with Ti60 powder and B powder. Scanning electron microscopy (SEM) confirmed that micro-nano enhancement TiBw can be obtained by SPS and the network structure were formed in the 3vol.% TiBw/Ti60 composites. The tensile properties of composites with different volume fraction at 600 degrees C show that 3vol.% TiBw/Ti60 composites have optimum comprehensive mechanical properties. The microstructure of thermal deformation of the 3vol.% TiBw/Ti60 composites shows that the matrix grains recrystallized at 1050 degrees C and the grains were refined. The tensile strength and elongation of the composites increased at first and then decreased with the increase of thermal deformation temperature. Highest values for flexural strength (similar to 752 MPa) and elongation (similar to 7.03%) were attained at 1050 degrees C, respectively. The strengthening mechanism can be mainly attributed to the directional arrangement of reinforcements and the grain refinement of the matrix.
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页数：11
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