Effect of TiC addition on surface oxidation behavior of SKD11 tool steel composites

[Display omitted] •Fabrication of uniform 60 vol.% TiC-SKD11 (AISI D2) matrix composite by unique infiltration process.•V diffusion to TiC particle form SKD11 matrix with favorable TiC/SKD11 interface.•Decreased Fe oxide (Fe2O3, Fe3O4) generation in the surface of TiC–SKD11 composite.•Improved oxida...

Full description

Saved in:
Bibliographic Details
Published in:Applied surface science 2017-09, Vol.415, p.155-160
Main Authors: Cho, Seungchan, Jo, Ilguk, Kim, Heebong, Kwon, Hyuk-Tae, Lee, Sang-Kwan, Lee, Sang-Bok
Format: Article
Language:English
Subjects:
Metal matrix composites (MMCs)
Oxidation resistance
SKD11
Titanium carbide (TiC)
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:[Display omitted] •Fabrication of uniform 60 vol.% TiC-SKD11 (AISI D2) matrix composite by unique infiltration process.•V diffusion to TiC particle form SKD11 matrix with favorable TiC/SKD11 interface.•Decreased Fe oxide (Fe2O3, Fe3O4) generation in the surface of TiC–SKD11 composite.•Improved oxidation resistance of the TiC–SKD11 composite.•Formation of thermodynamically stable, volume-expanded TiO2 phase in the oxidized surface. Titanium carbide (TiC) reinforced tool steel matrix composites were successfully fabricated by a liquid pressing infiltration process and research was subsequently conducted to investigate the composites’ oxidation resistance. The mass gain of the tested TiC–SKD11 composite held at 700°C for 50h in an air environment decreased by about 60%, versus that of the SKD11, which indicates improved oxidation resistance. Improved oxidation resistance of the TiC–SKD11 composite originates from uniformly reinforced TiC, with a phase transition to thermodynamically stable, volume-expanded TiO2.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2016.11.164