Microstructure and mechanical properties of in situ TiB reinforced titanium matrix composites based on Ti–FeMo–B prepared by spark plasma sintering

2004 ◽  
Vol 64 (16) ◽  
pp. 2495-2500 ◽  
Author(s):  
Haibo Feng ◽  
Yu Zhou ◽  
Dechang Jia ◽  
Qingchang Meng
2014 ◽  
Vol 881-883 ◽  
pp. 923-926
Author(s):  
Xiang Bo Shen ◽  
Zhao Hui Zhang ◽  
Mao Sheng Cao ◽  
Fu Chi Wang

The in-situ synthesized TiB reinforced titanium matrix composites have been prepared by spark plasma sintering technique at 950–1250°C, using mixtures of 10wt% TiB2 and 90wt% Ti powders. The effects of the sintering temperature on the mechanical properties (Vickers microhardness, yield strength and Young`s modulus) of the composites were investigated. SEM was used to analyze the reaction process and the microstructure of the compacts synthesized at different sintering temperatures. The results indicated that the in situ synthesized TiB grow rapidly with increasing sintering temperature. The composite sintered at 1250°C have the highest relative density of 99.2%. However, the composite sintered at 950°C exhibits the best Vickers microhardness of 4.64GPa and yield strength of 989MPa, respectively.


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