Temporary enamel coatings for oxidation protection of Ti–6Al–4V at its hot working temperature of 1200 °C

• Published in: Journal of alloys and compounds Vol. 815; p. 152295
• Main Authors: Yu, Zheng, Feng, Min, Chen, Minghui, Shen, Changbin, Zhu, Shenglong, Wang, Fuhui
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 30.01.2020; Elsevier BV
• Subjects: Aluminum oxide; Coating materials; Diffusion coating; Enamel; Hardening; Hot working; Interface stability; Kaolin; Microstructure; Oxidation; Oxidation resistance; Oxygen; Particulate composites; Protective coatings; Quartz; Scanning electron microscopy; SEM; Titanium base alloys; Scanning electron microscopy; Oxidation; SEM; Coating materials; Microstructure

Oxidation protection of temporary enamel coatings with or without additions of quartz and kaolin on Ti–6Al–4V alloy at its hot working temperature of 1200 °C was studied. After exposure for 5 h, the bare alloy has suffered from oxidation and sever oxygen ingression that gives rise to a deep hardenin...