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Phase Evolution during High Energy Cube Milling of Ti–6Al–4V–0.5 vol% TiC Powders Using Heptane and Tin as Process Control Agents (PCAs)
Author(s) -
Babu N. Kishore,
Kallip K.,
Leparoux M.,
Talari M. K.,
AlOgab K. A.,
Alqahtani N. M.
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201600662
Subject(s) - materials science , tin , heptane , particle size , metallurgy , particle (ecology) , phase (matter) , powder mixture , metastability , chemical engineering , sintering , chemistry , oceanography , organic chemistry , engineering , geology , physics , quantum mechanics
The present study investigated the influence of heptane and tin process control agents on cube milled Ti–6Al–4V + 0.5 Vol% TiC (Ti–6Al–4V–0.5TiC) powder. A smaller particle size and nar‐row particle distribution was observed for Ti–6Al–4V–0.5TiC powder milled with heptane, while the powder milled with tin showed relatively larger particle size and broader particle distribution due to the cold welding of particles. Hcp phase was observed in the Ti–6Al–4V–0.5TiC powder milled with tin. The formation of fcc Ti(C, H)metastable phase with high lattice strain and interstitial content in Ti–6Al–4V–0.5TiC powder milled with heptane, resulted in higher hardness compared to the powder milled with tin.