|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Metal-Matrix Composites Innovations, Advances and Applications: An SMD Symposium in Honor of William C. Harrigan, Jr.
||Tensile Behavior of Hot Isostatically Pressed TiC-SKD11 Composite and Characteristic Analysis
||Seong-Ju Park, Seung-Chan Cho, Sang-Kwan Lee, Dae-Ha Kim, Keum-Cheol Hwang, Hyun-Uk Hong
|On-Site Speaker (Planned)
Steel matrix composites have drawn attention owing to excellent high-temperature specific strength. TiC is well known as reinforcement of steels because of low density, high elastic modulus and excellent wettability. A composite having as much as approximately 40 vol.% of TiC particles in an SKD11 matrix was successfully fabricated by a novel infiltration process. The complete infiltration of the molten steel into a weakly-bonded TiC preform was confirmed. The penetration of the liquid SKD11 reached geometrically complex regions without any interfacial flaw, and TiC particles were found to be distributed homogeneously. TiC/SKD11 interfaces were expected to have excellent strength due to semi-coherent nature. The effect of hot isostatic pressing on the composite's tensile strength and microstructure was also studied. It was found that strength greatly increased. This significant increase of tensile strength as a result of HIP was discussed in terms of microstructure, interface characteristics and residual stress.
||Planned: None Selected