|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Defects and Properties of Cast Metals
||Effect of Various Aluminum Content on the Formation of Inclusion
||Yan Luo, Lifeng Zhang, Yang Wen, Ping Shen
|On-Site Speaker (Planned)
The effect of various aluminum content on the formation of inclusions in a nitrogen-rich atmosphere was investigated using vacuum induction furnace and high temperature contact angle device. The growth and evolution of the precipitation in a subsurface oxygen-depleted region were evaluated by means of optical microscope, scanning electron microscope and non-aqueous solution electrolysis. The depth of the internal oxide and nitride zones were different in the samples containing various aluminum content. Increasing aluminum content to a given value has an influence on modifying the surface oxide scale composition and increasing its continuity, which gradually decreased the internal precipitation zones with increasing aluminum content. For the sample with higher aluminum content a thick continuous oxide layer formed and completely prevented nitrogen penetration into the bulk of the samples.
||Planned: Supplemental Proceedings volume