Microstructure and hardness of Steel/Ni-TiC composite produced by compaction and sintering

被引:2
|
作者
Camagu, S. T. [1 ,2 ]
Motaung, D. E. [3 ,4 ]
Bolokang, A. S. [1 ,2 ]
Arendse, C. J. [1 ]
机构
[1] Univ Western Cape, Dept Phys, POB 339,Private Bag X 17, ZA-7535 Bellville, South Africa
[2] CSIR, Adv Mat & Engn, Mat Sci & Mfg, Meiring Naude Rd,POB 395, Pretoria, South Africa
[3] Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa
[4] Univ Limpopo, Dept Phys, Private Bag X1106, ZA-0727 Sovenga, South Africa
关键词
Composite; Steel/Ni; TiC; Phase transformation; Interface;
D O I
10.1016/j.matpr.2020.02.401
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Steel/Ni reinforced with 1.0-1.5 wt% TiC composite material was developed by compaction and sintering processes. Optical microscopy and Zeiss-Auriga field-emission scanning electron microscope (FE-SEM) revealed that the TiC particles segregated around the spherical Steel/Ni grains. Moreover, the 1.0 wt % TiC- Steel/Ni composite has the FCC Steel/Ni matrix while the 1.5 wt% TiC- Steel/Ni composite is comprised of the BCC Steel/Ni phase. The large TiC grains were found mostly on the 1.0 wt% TiC- Steel/Ni composite. Additionally, the 1.5 wt% TiC-Steel/Ni composite was composed of the ultrafine TiC grains that surrounded the FeNi spherical grains. The FCC Steel/Ni (1.0 wt% TiC)) composite has lower average hardness compared to the B2 Steel/Ni (1.5 wt% TiC) phase. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码:553 / 557
页数:5
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