study of some mechanical properties of thin hard coating chromium carbides

Clicks: 277
ID: 221450
2004
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #19 of 64 articles by views in journal of big data

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
In the present work, some mechanical properties of chromium carbides coating on steel substrates were studied. The samples were prepared by d.c. magnetron sputtering of a pure Chromium (Cr) layer on steel substrates containing 1%wt of Carbon. The system (substrate/coating) was then annealed in vacuum at a temperature at which the carbon of the substrate may diffuse into the Cr metallic film. This fact leads to the formation of chromium carbides, which are identified by X-ray diffraction as Cr7C3, Cr23C6 and (Cr,Fe)7C3. The study by nanoindentation shows that the microhardness decreases with increasing of annealing temperature until 800°C, then increases rapidly to reach a maximum (≈2800 Kg.mm-2) at 1000°C. The internal stresses, measured by X-ray diffraction, are compressive at 900°C and tensile at 1000°C in the chromium coating. Nevertheless, they are tensile in the substrates regardless the temperature. The sign change of the stresses in the coating is probably due to the phase transformation (Cr7C3→(Cr,Fe)7C3)).
Reference Key
harkati2004sciencesstudy Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors C Harkati, L. Chekour L. Chekour, R Halimi
Are you one of these authors? Claim your profile
Journal journal of big data
Year 2004
DOI
DOI not found
URL
http://revue.umc.edu.dz/index.php/a/article/view/212
Keywords
chromium

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.