Al Si Oxide Coating as Ttritium Penetration Barrier on 316L Stainless Steel Prepared by a Combined Process

Hong Bing Liu; Jie Tao; Jiang Xu; Zhao Feng Chen; Xian Jun Sun

doi:10.4028/www.scientific.net/AMR.59.76

Paper Titles

TiC Reinforced Steel Matrix Composite Layers Produced by Laser Surface Alloying
p.55

Chemical Vapor Crystallization of Hard Nanocomposite Tungsten Carbide Layers for Extreme Applications
p.62

Micro-Raman Study on Structure Evolution of Graphite Exposed to Intense Thermal Shock Load
p.66

Features of Technological Layout of Manufacture of Unique Mono-Block Large-Dimension Plates
p.71

Al Si Oxide Coating as Ttritium Penetration Barrier on 316L Stainless Steel Prepared by a Combined Process
p.76

Methods of Increasing Thermal Conductivity of Plasma Sprayed Tungsten-Based Coatings
p.82

Thermo-Mechanical Behaviour of HfO₂ Coatings for Aerospace Applications
p.87

Examinations on the Oxidation Resistance of Innovative Carbon Based Materials
p.92

Investigation of the Possibility of Application of Boron Clusters in Composite Materials with Metal Matrix
p.96

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 59Al Si Oxide Coating as Ttritium Penetration...

Al Si Oxide Coating as Ttritium Penetration Barrier on 316L Stainless Steel Prepared by a Combined Process

Abstract:

Based on the favorable effect of the elements Al and Si on the improvement in reducing hydrogen permeability, a new combined process of simultaneous aluminizing and siliconizing, followed by oxidizing treatments using double glow plasma technology on 316L substrate was developed in this work. Microstructure and phase structure of as- prepared coating was examined by scanning electronic microscopy (SEM), X-ray diffraction analysis (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS), respectively. The results showed that the simultaneous aluminizing and siliconizing coating consisted of an outer aluminide layer (dissolved Si) and a diffusion zone. After a combined process, a continuous and compact Al2O3-rich coating was formed at the outermost surface. SiO2 was also detectable in the oxide coating.