Interfacial microstructure and mechanical behaviour in laser clad TiCp/Ni alloy coatings

Authors
Citation
Xl. Wu et Ys. Hong, Interfacial microstructure and mechanical behaviour in laser clad TiCp/Ni alloy coatings, MATER SCI T, 17(5), 2001, pp. 597-600
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
MATERIALS SCIENCE AND TECHNOLOGY
ISSN journal
0267-0836 → ACNP
Volume
17
Issue
5
Year of publication
2001
Pages
597 - 600
Database
ISI
SICI code
0267-0836(200105)17:5<597:IMAMBI>2.0.ZU;2-6
Abstract
Coatings of TiCp reinforced composite have been produced by laser cladding. Two kinds of coating with different TiCp origins were investigated, i,e, u ndissolved TiCp and in situ TiCp. For undissolved TiCp, epitaxial growth of TiC, precipitation of CrB, and a chemical reaction occur at phase interfac es, and nanoindentation loading curves show pop in marks caused by the plas tic deformation associated with crack formation or debonding of TiCp from t he matrix, As for irt situ TiCp, no pop in mark appears. Meanwhile, in situ TiCp produces hardness and elastic modulus values that are higher than tho se produced by the coating that contains undissolved TiC,. (C) 2001 IoM Com munications Ltd.