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Titolo:
Laser boronising of Ti-6A1-4V as a result of laser alloying with pre-placed BN
Autore:
Selvan, JS; Subramanian, K; Nath, AK; Kumar, H; Ramachandra, C; Ravindranathan, SP;
Indirizzi:
Anna Univ, Dept Phys, Chennai 600025, India Anna Univ Chennai India 600025 na Univ, Dept Phys, Chennai 600025, India Ctr Adv Technol, Indore 452013, India Ctr Adv Technol Indore India 452013 tr Adv Technol, Indore 452013, India Hindustanndiaonaut Ltd, Foundry & Forge Div, Bangalore 560017, Karnataka, I Hindustan Aeronaut Ltd Bangalore Karnataka India 560017 017, Karnataka, I
Titolo Testata:
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
fascicolo: 1-2, volume: 260, anno: 1999,
pagine: 178 - 187
SICI:
0921-5093(199902)260:1-2<178:LBOTAA>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
TITANIUM; TI-6AL-4V; NITROGEN; BEHAVIOR; WEAR;
Keywords:
laser surface alloying; CO2 laser; Ti-6Al-4V; boronising; titanium boride; titanium nitride;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Subramanian, K Anna Univ, Dept Phys, Chennai 600025, India Anna Univ Chennai India 600025 hys, Chennai 600025, India
Citazione:
J.S. Selvan et al., "Laser boronising of Ti-6A1-4V as a result of laser alloying with pre-placed BN", MAT SCI E A, 260(1-2), 1999, pp. 178-187

Abstract

This paper discusses the effect of CO2 laser alloying of pre-placed BN coating with Ti-6Al-4V alloy. The formation of titanium boride and titanium nitride investigated using energy dispersive X-ray diffraction (EDXRD) resultwere related to the microhardness and microstructure. The nitrogen and boron diffusion during the laser boronising process identified using secondaryion mass spectrometry (SIMS) and X-ray photoelectron spectrometry (XPS) analysis was compared with the EDXRD results. The surface hardness HV1500-1700 observed at the boronised layer was five to six times higher than that ofuntreated Ti-6Al-4V alloy. This was compared with needle platelet and dendrite type microstructures. Theoretically estimated surface temperature values were used to interpret the compound formation in the laser alloyed layer. (C) 1999 Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 13:35:45