Study the influence of destabilization and tempering heat treatments on the microstructure of high chromium white cast iron by observing the resulted hardness and Abrasive wear conduct | ||||
Journal of Engineering Science and Military Technologies | ||||
Article 2, Volume 6, Issue 2, September 2023, Page 73-85 PDF (2.54 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/ejmtc.2023.167854.1234 | ||||
View on SCiNiTO | ||||
Authors | ||||
Ahmed Abd Elhamid Elkassas 1; Ahmed Mohamed Elkassas2; ragaie Mohamed Hassan3 | ||||
1Department of Production Engineer & Mechanical Design - Faculty of Engineering - Tanta University, Tanta, Egypt | ||||
2Department of Production Engineer & Mechanical Design - Faculty of Engineering - Tanta University, Tanta, Egypt | ||||
3Dept. of Mech. Design & Production - Faculty of Engineering - Cairo University, Cairo, Egypt | ||||
Abstract | ||||
Various destabilization heat treatments at 880°C, 980°C, 1080°C, and 1180°C for one hour followed by tempering at 500°C for two hours were conducted on 2.55 wt.%-C, 21.8 wt.% Cr high chromium white cast iron alloy. Investigations were done into how high chromium white cast iron alloy's microstructure and mechanical characteristics were modified by heat treatment. It has been observed that destabilization heat treatment at temperatures of 880°C, 980°C, 1080°C, and 1180°C for 1 hour each, followed by tempering at 500°C for 2 hours, has an impact on the combination of abrasion wear resistance and hardness. The obtained hardness values are the result of the mixture of the martensite formed, stoichiometry and morphology of the secondary carbides present mainly M7C3. The optimum hardness values and abrasion wear resistance were for destabilization heat treatment at 980 °C. The secondary carbides were severely dissolved at 1180 °C, and as a result, the austenitic phase was stabilized. The relationship between microstructural characteristics and combinations of hardness and abrasion wear has been detailed | ||||
Keywords | ||||
Abrasive wear resistance; heat treatment; highchromium white cast iron; secondary carbides | ||||
Statistics Article View: 83 PDF Download: 152 |
||||