Enhancing high-temperature properties of stainless steel composite with titanium carbide reinforcement: a study on coefficient of thermal expansion, thermal conductivity, and strength

• DOI: 10.1016/j.jmrt.2023.07.162
• Publication Date: 2023-07-20T17:56:11Z
• Authors: Seungchan Cho; Jihye Lee; Sangmin Shin; Donghyun Lee; Minsoo Kim; Hansang Kwon; Moonhee Choi; Yoon-Seok Lee; Ilguk Jo; Hyun-Uk Hong; Junghwan Kim
• Keywords: Titanium carbide

The high-temperature properties of titanium carbide (TiC)–reinforced stainless steel (SS) matrix composite, fabricated through infiltration process, were investigated across different temperatures. By adding highly concentrated and closely adjacent TiC particulate reinforcement, dramatic variations in the coefficient thermal expansion (CTE) conductivity properties, which originate from phase transformation SS matrix, effectively suppressed. Moreover, addition significantly strengthened SS, with its strengthening effect increasing at higher temperatures reaching highest value after transformation. Therefore, TiC–SS composite exhibit great potential for use as advanced high-temperature-resistant structural materials.