Effects of the volume fraction on the microstructural and mechanical properties of TiCp/high-manganese steel composites
Source abstract
Abstract
To improve the adaptability to complex shaped products, TiC particulates (TiCp) reinforced high-manganese steel matrix (TiCp/HMS) composites were prepared by the squeeze casting infiltration method, and the microstructure and the mechanical properties of the composites were investigated, with different TiCp volume fractions (35%, 50%, 65%). Water glass was applied as binder in the TiCp preforms, in which iron powder was added to adjust the TiCp fractions, and Si powder to activate the bonding of TiCp/steel interface. The results showed that with the increase of the volume fraction, the hardness of the composites increases gradually, with the highest reaching 60.7 HRC at 65 % TiCp, which is 2.7 times that of the matrix. However, the bending strength decreases gradually, with the maximum 439.0 MPa obtained at 35% TiCp. The impact toughness of the composites changes slightly. Due to the use of water glass, brittle glass phase is formed at the TiCp/steel interface, which reduces the mechanical properties of the composites. The addition of Si powder can improve the comprehensive mechanical properties of the composites.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Advanced materials and composites · Advanced ceramic materials synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, China
National and Local Joint Engineering Research Center for Advanced Solidification Forming and Equipment Technology of Metals, Kunming, China
Funding
National Natural Science Foundation of China · Major Science and Technology Projects in Yunnan Province
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