Failure Analysis of Gold Dust defect in 430 grade Stainless Steel

International Conference on Advances in Metallurgy, Materials and Manufacturing

冶金学;材料科学;机械制造

Mithra, S.^1 ; Venkatakrishnan, P.G.^1 ; Noorullah, D.^1 ; Karthik, V.^1

Department of Metallurgical Engineering, Government College of Engineering Salem, India^1

关键词: Cold-rolled;    Gold dust;    Rolling direction;    Sensitization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/314/1/012003/pdf
DOI  :  10.1088/1757-899X/314/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

- Gold dust is a surface defect that usually observed on the surface of 430 grade stainless steel. Gold dusting is characterized by sparkling appearance. They occur as small flakes of metal on the cold rolled surface elongated in the rolling direction. As this defect occurs on the surface of the component, it affects the intended application of the steel for which they have been designed. Further loss of material in the powder form can affect the mechanical properties of the component. The defect is analyzed through optical and Scanning electron microscope with EDAX. From the results it is observed that the defect is due to sensitization. The paper is based on the work to identify the sources of the defect and solutions to overcome this defect.