A study on formation mechanism of friction-surfaced stainless steel coating via a stop-action method

The formation mechanism of a friction-surfaced (FSed) coating of super austenitic stainless steel AISI 904 L with high stacking fault energy was investigated with a stop-action method. The advancing side, center and retreating side of the surfaces and cross-sections of the coating and the bump were...

Full description

Saved in:
Bibliographic Details
Published in:Surface & coatings technology 2022-07, Vol.441, p.128511, Article 128511
Main Authors: Guo, D., Lam, W.I., Kwok, C.T., Chan, S.L.I., Li, W., Yang, G., Tam, L.M.
Format: Article
Language:English
Subjects:
Formation mechanism
Friction surfacing
Microstructure
Stainless steel coating
Texture
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The formation mechanism of a friction-surfaced (FSed) coating of super austenitic stainless steel AISI 904 L with high stacking fault energy was investigated with a stop-action method. The advancing side, center and retreating side of the surfaces and cross-sections of the coating and the bump were studied in detail using EBSD. The microstructure of the bump formed at the end was found to be different from that of the FSed coating. A systematic analysis of the microstructure revealed the formation mechanism of the coatings. A two-step formation mechanism of the FSed coating was proposed. [Display omitted] •Friction-surfaced coating was formed in two steps (bump deposition and flash squeezing).•Grains were in dynamic recovery during first step (bump deposition, A2⁎ shear texture).•During second step (flash squeezing), grains developed to continuous dynamic recrystallization microstructure.•Annular rings on friction-surfaced coating surface were induced by rotation and advance of asymmetric flash.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2022.128511