| Title |
Investigating the correlation between nano-impact fracture resistance and hardness/modulus ratio from nanoindentation at 25-500 °C and the fracture resistance and lifetime of cutting tools with Ti1-xAlxN (x = 0.5 and 0.67) PVD coatings in milling operations |
| Authors |
Beake B.D. , Smith J.F. , Gray A. , Fox-Rabinovich G.S. , Veldhuis S.C. , ENDRINO ARMENTEROS, JOSÉ LUIS |
| External publication |
Si |
| Means |
SURFACE & COATINGS TECHNOLOGY |
| Scope |
Article |
| Nature |
Científica |
| JCR Quartile |
1 |
| SJR Quartile |
1 |
| JCR Impact |
1.678 |
| SJR Impact |
1.158 |
| Web |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-33845408267&doi=10.1016%2fj.surfcoat.2006.09.118&partnerID=40&md5=c56b8292ce9bbcf692881410cad72cf7 |
| Publication date |
01/01/2007 |
| ISI |
000243655900014 |
| Scopus Id |
2-s2.0-33845408267 |
| DOI |
10.1016/j.surfcoat.2006.09.118 |
| Abstract |
A novel laboratory technique, nano-impact testing, has been used to test Ti1-xAlxN (x = 0.5 and 0.67) PVD coated WC-Co inserts at 25-500 °C. Cutting tool life was studied under conditions of face milling of the structural AISI 1040 steel; the end milling of hardened 4340 steel (HRC 40) and TiAl6V4 alloy. A correlation was found between the results of the rapid nano-impact test and milling tests. When x = 0.67 improved resistance to fracture was found during milling operations and also in the nano-impact test of this coating compared to when x = 0.50. The coating protects the cutting tool surface against the chipping that is typical for cutting operations with intensive adhesive interaction with workpiece materials such as machining of Ti-based alloys. The results give encouragement that the elevated temperature nano-impact test can be used to predict the wear and fracture resistance of hard coatings during milling operations. At 500 °C nanoindentation shows there is a lower H/Er ratio for the PVD coatings compared to room temperature, consistent with reduced fracture observed at this temperature in the nano-impact test. © 2006 Elsevier B.V. All rights reserved. |
| Keywords |
Cutting tools; Fracture toughness; Impact testing; Indentation; Milling (machining); Physical vapor deposition; Wear resistance; Hard coatings; Nano-impact testing; Protective coatings; Cutting tools; Fracture toughness; Impact testing; Indentation; Milling (machining); Physical vapor deposition; Protective coatings; Wear resistance |
| Universidad Loyola members |
|
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