The effect of Si additions on the high temperature oxidation of a ternary Ni-10Cr-4Al alloy in 1 atm O2 at 1100 °C |
| |
| Authors: | S Wang CS Ni |
| |
| Affiliation: | a State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Wencui Road 62, 110016 Shenyang, China
b Key Laboratory for Fire Scene Investigation and Material Evidence Determination, Shenyang Fire Research Institution, Ministry of Public Security, China |
| |
| Abstract: | The oxidation of four Ni-10Cr-ySi-4Al alloys was studied at 1100 °C to examine the effects of Si additions (from 2 to 6 at.%) on the behavior of the alloy Ni-10Cr-4Al. Addition of 2 at.% Si prevented completely nickel oxidation, but could not form alumina scales. Larger Si additions produced alumina only over part of the alloy surface (about 20% with 4 at.% Si and 30% with 6 at.% Si), but could not prevent completely the internal oxidation of Al. The results are interpreted by extending to quaternary alloys the mechanism of the third-element effect already proposed for ternary alloys. |
| |
| Keywords: | A Alloy A Nickel C Oxidation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
