Effects of High Current Pulsed Electron Beam Irradiation on the Mechanical Properties and Cutting Performance of TiAlN-Coated Tools

Journal Article · Fri Dec 15 04:00:00 EST 2017 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-017-3073-0· OSTI ID:22860714

Lou, Changsheng; Zhang, Lei; Lu, Xin; Lyu, Xiao; Jin, Guang ^[1]; Wang, Qiang ^[2]

---

1. Shenyang Ligong University, School of Materials Science and Engineering (China)
2. Northeastern University, Ministry of Education, Key Laboratory of Electromagnetic Processing of Materials (China)

Commercial TiAlN-coated carbide tools were post-treated using the high current pulsed electron beam irradiation method. The influence of the energy density of the electron beam on the morphology, phase composition, surface roughness and Vickers hardness were investigated. The higher energy density imposed on TiAlN-coated carbide tools resulted in a flatter and harder modified surface. After the beam irradiation, the XRD diffraction peak intensity of the hardening phase (Ti,Al)N was changed, and the diffraction peak position was shifted; these changes are attributed to the improved microhardness of the irradiated coatings. Investigations on the cutting experiments of turning Ti-6Al-4V alloy showed that the irradiated TiAlN-coated carbide tool exhibited longer cutting life and better wear resistance than those of an unirradiated tool. This improvement is attributed to the combined effect of low surface roughness and high microhardness that resulted from the high current pulse electron beam irradiation.

• OSTI ID: 22860714
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 12 Vol. 26; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM COMPOUNDS
CARBIDES
COATINGS
ELECTRON BEAMS
ENERGY DENSITY
HARDENING
MICROHARDNESS
NITROGEN COMPOUNDS
SURFACES
TERNARY ALLOY SYSTEMS
TITANIUM ALLOYS
VICKERS HARDNESS
WEAR RESISTANCE
X-RAY DIFFRACTION