Open AccessHardness and microstructure of the nanocrystallined TiN coating by reactive plasma spray
Author(s) -
Wenran Feng,
Yan Ding,
He Ji-Ning,
Guangliang Chen,
Wanmiao Gu,
Guling Zhang,
Chizi Liu,
Sui Yang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.2399
Subject(s) - tin , materials science , coating , nanocrystalline material , microstructure , amorphous solid , indentation , high resolution transmission electron microscopy , nanoindentation , plasma , gas dynamic cold spray , hardening (computing) , metallurgy , composite material , titanium nitride , nitride , transmission electron microscopy , nanotechnology , layer (electronics) , crystallography , chemistry , physics , quantum mechanics
The basic idea of the reactive plasma spray (RPS) was presented. The TiN coating was successfully deposited on Q235 steel substrate by using the gas_tunnel plasma spray gun via RPS. Micro_hardness of the TiN coating under different loads has been measured, revealing an obvious indentation size effect, and a weak work_hardening effect. XRD, TEM and HRTEM were employed to analyze the prepared coating samples. Results obtained show that nanocrystalline TiN coating has been achieved via RPS, which is composed of TiN crystals of about 57—70nm in diameter and the amorphous TiN.