Phase Composition of Al-Si Coating from the Initial State to the Hot-Stamped Condition

Phase Composition of Al-Si Coating from the Initial State to the Hot-Stamped Condition

The chemical and phase composition of the coating and the coating/substrate interface of an Al-Si-coated 22MnB5 hot stamped steel was investigated by means of SEM-EDS, XRD, micro-XRD and electron diffraction. Moreover, the surface profile was analyzed by XPS and roughness measurements. The XPS measu...

Full description

Saved in:
Bibliographic Details
Published in:Materials Vol. 14; no. 5; p. 1125
Main Authors: Kucera, Vojtech, Cabibbo, Marcello, Prusa, Filip, Fojt, Jaroslav, Petr-Soini, Jaroslav, Pilvousek, Tomas, Kolarikova, Marie, Vojtech, Dalibor
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 27-02-2021
MDPI
Subjects:
22MnB5 steel
Al-Si coating
Aluminum
austenitization
Chemical composition
Coating
die-quenching
Electron diffraction
Electrons
Interdiffusion
Ion beams
Metal fatigue
Oxidation
Phase composition
Phase transitions
Surface roughness
TEM-SAED
Temperature
Tensile strength
Thin films
X ray photoelectron spectroscopy
X-ray diffraction
Czech Republic
TEM-SAED
die-quenching
austenitization
Al-Si coating
22MnB5 steel
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The chemical and phase composition of the coating and the coating/substrate interface of an Al-Si-coated 22MnB5 hot stamped steel was investigated by means of SEM-EDS, XRD, micro-XRD and electron diffraction. Moreover, the surface profile was analyzed by XPS and roughness measurements. The XPS measurements showed that the thickness of the Si and Al oxide layers increased from 14 to 76 nm after die-quenching, and that the surface roughness increased as well as a result of volume changes caused by phase transformations. In addition to the FeAl(Si) and Fe Al phases and the interdiffusion layer forming complex structures in the coating, electron diffraction confirmed the presence of an Fe Al phase, and also revealed very thin layers of Fe (Al,Si)C, Fe (Al,Si) and Al-bearing rod-shaped particles in the immediate vicinity of the steel interface. Moreover, the scattered nonuniform layer of the Fe Al Si phase was identified in the outermost layer of the coating. Despite numerous studies devoted to researching the phase composition of the Al-Si coating applied to hot stamped steel, electron diffraction revealed very thin layers and particles on the coating/substrate interface and outermost layer, which have not been analyzed in detail.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14051125