Study on the Ductile Removal Behavior of K9 Glass with Nano-Scratch

Abstract:

Ductile removal behavior of hard and brittle material in the process of machining has always been a sticking topic. A series of nanoscratch tests of K9 glass were conducted with Berkovich probe on nanoindenter XP to investigate the ductile removal process, material deformation and crack damage. It was found that the scratches surface was free from crack damage in the range of the selected scratching parameters and excellent machinability of K9 glass was obtained. The observation also showed that the stable chips were distributed on the sides of the scratches and the deformation of chips was much larger than that obtained in the conventional machining. Meanwhile, a pile-up phenomenon was obvious and the residual depth of scratches was decreased with the increasing of scratch velocity under the same normal load condition.

• Periodical: Advanced Materials Research (Volume 1136)
• Pages: 282-288
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1136.282
• Online since: January 2016
• Authors: Zhi Peng Li, Hang Zhao, Fei Hu Zhang
• Keywords: Cracks, Deformation, Ductile, Nano-Scratch, Optical Glass

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