Microstructure and tensile properties of laser melting deposited TiC/TA15 titanium matrix composites

High temperature mechanical properties of a laser melting deposited TiC/TA15 titanium matrix composite

“…Also, both particle fracture and interface decohesion could occur in the same sample depending on the plastic behavior of the matrix [35]. In TiC PTMCs, the dominant tensile fracture mechanism at ambient temperature is particle fracture, which was well-confirmed by extensive researches on room temperature tensile properties of various TiC reinforced Ti alloy composites [4,7,8,36] and our previous work in the LMDed TiC/TA15 composites [26]. When deformed at elevated temperatures, however, the tensile fracture mechanism was relatively less reported.…”

“…A TiC/TA15 titanium matrix composite containing 10 vol.% TiC reinforcement was fabricated by the same LMD process as reported in the previous work [21,26]. Pre-mixed powder blends of atomized TA15 powders (nominal composition Ti-6Al-2Zr-1Mo-1V, wt.%) and TiC powders (>99.7% purity) with 10% TiC volume fraction were prepared for the production of the composite.…”

“…Owing to its high elastic modulus, high melting point and outstanding thermal stability in Ti matrix, TiC was considered one of the best reinforcements for titanium alloys [22][23][24][25]. In the previous study, TiC particle reinforced TA15 titanium matrix composites with 5-15 vol.% of TiC reinforcement had been successfully fabricated by the LMD process and the microstructures as well as room temperature tensile properties of the composites were evaluated [26]. The results confirmed the feasibility of LMD process to manufacture PTMCs.…”

Tensile behavior of TiB-reinforced Ti matrix composites with different titanium powders

“…However, their widespread application has been restricted because of their low specific stiffness and wear resistance. In order to overcome this issue, titanium matrix composites (TMCs) using reinforcements such as TiB, TiC, or B 4 C have been developed (Panda, et al, 2003, Gorsse, et al, 2003, Melendez, et al, 2011, Kumar, et al, 2012, Liu, et al, 2009, Abderrazak, et al, 2011, Zadra, et al, 2014, Hulbert, et al, 2009, and Ni, et al, 2006. TiB as a reinforcement for Ti has several advantages compared with other reinforcements (Ravi Chandran, et al, 2002, andTamirisakandala, et al, 2006).…”

Influence of Y2O3-SiC-Mo and Ce-Al-Ni amorphous alloy on laser melting deposition stellite matrix composites

“…LMD is a rapid forming technology for building metallic components. The laser deposited metal parts have a fine microstructure, and mechanical properties of the laser deposited parts are usually comparable or even superior to the forged materials [1,2]. In the last decade, the nanocomposites have become very popular because of their high toughness and stiffness along with superior hardness.…”