ISSN 2594-5327
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Titanium (Ti) matrix composites based on Ti and reinforced with TiN, TiC and TiCN particles, were manufactured following a powder injection molding route: mixing, preparation of feedstock, molding, debinding and sintering. The Ti and ceramic powders were dry mixed and molded with wax based binder. The critical powder loading for injection molding was 55 vol.% for all samples. Binder debinding was performed by solvent and thermal method. After dedinding, the samples were sintered at 1,300°C for 2 hours in vacuum. Metallographic studies were conducted to extend densification and the corresponding microstructural changes. The sintered samples were characterized by measuring tensile strength, elongation and hardness. All powders and fracture surfaces of sintered samples were examined using scanning electron microscope. The sintered density of injection molded Ti and composites samples were changed with increasing amount of additions. The addition of TiN, TiC and TiCN improves the densities, tensile strength and hardness.
Titanium (Ti) matrix composites based on Ti and reinforced with TiN, TiC and TiCN particles, were manufactured following a powder injection molding route: mixing, preparation of feedstock, molding, debinding and sintering. The Ti and ceramic powders were dry mixed and molded with wax based binder. The critical powder loading for injection molding was 55 vol.% for all samples. Binder debinding was performed by solvent and thermal method. After dedinding, the samples were sintered at 1,300°C for 2 hours in vacuum. Metallographic studies were conducted to extend densification and the corresponding microstructural changes. The sintered samples were characterized by measuring tensile strength, elongation and hardness. All powders and fracture surfaces of sintered samples were examined using scanning electron microscope. The sintered density of injection molded Ti and composites samples were changed with increasing amount of additions. The addition of TiN, TiC and TiCN improves the densities, tensile strength and hardness.
Palavras-chave
Powder injection molding; Sintering; Titanium.
Powder injection molding; Sintering; Titanium.
Como citar
Gulsoy, Hamit Özkan;
Gunay, Volkan;
Baykara, Tarık.
POWDER INJECTION MOLDING OF TITANIUM MATRIX
COMPOSITES
,
p. 251-260.
In: 67º Congresso da ABM - Internacional / 12º ENEMET - Encontro Nacional de Estudantes de Engenharia Metalúrgica, de Materiais e de Minas,
Rio de Jabeiro,
2012.
ISSN: 2594-5327
, DOI 10.5151/2594-5327-20878
