A Study of the Microstructure of Titanium Carbide

Autor: Herman Blumenthal, Ronald Silverman
Rok vydání: 1955
Předmět:
Zdroj: JOM. 7:317-322
ISSN: 1543-1851
1047-4838
Popis: It was found that despite the similarity of chemical analyses of different titanium carbides used as base materials for cermets, the physical properties, especially transverse-rupture strengths, of test bars were different. Hence this metallographic study attempts to link physical properties to micro-structures. It is shown that microstructure, grain shape, and grain growth are functions of three interrelated factors: 1—powder production procedure, 2—surface conditioning of the particles, and 3—impurities either contained in the original powder or acquired during ball milling. An explanation is offered for the “coring effect,” long observed, but heretofore of unknown origin. The explanation is based on assumption of an oxide film and on chemical analyses which substantiate these findings.
Databáze: OpenAIRE