Application of a nanosecond laser pulse to evaluate dynamic hardness under ultra-high strain rate

Joanna Radziejewska

Abstract

The paper presents results of experimental tests of plastic metals deformation generated by a shock wave induced by laser pulse. Tests were carried out on the Nd:YAG laser with a wavelength of 1064 nm and the laser pulse of 10 ns duration. The shock wave generate by the laser pulse was used to induced local plastic deformation of the material surface. The study examined the possibility of application the process to develop a new method of measuring the dynamic hardness of materials under ultra-high strain rate. It has been shown that the shock wave induced by the laser pulse with an energy of 0.35-1.22 J causes a repeatable plastic deformation of surface of commercially available metals and alloys without thermal effects on the surfaces. Based on the knowledge of an imprint geometry, it is possible to evaluate the dynamic hardness of materials at strain rate in the range of 107 s-1.

Author Joanna Radziejewska (FPE / IoMP)
Joanna Radziejewska,,
- The Institute of Manufacturing Processes
Journal seriesOptics and Laser Technology, ISSN 0030-3992, e-ISSN 1879-2545
Issue year2016
Vol78
Pages125-133
Publication size in sheets0.5
ASJC Classification2208 Electrical and Electronic Engineering; 2504 Electronic, Optical and Magnetic Materials; 3107 Atomic and Molecular Physics, and Optics
DOIDOI:10.1016/j.optlastec.2015.10.011
Languageen angielski
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 25.0, 10-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 10-01-2020, ArticleFromJournal
Publication indicators Scopus Citations = 12; WoS Citations = 12; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.287; WoS Impact Factor: 2016 = 2.109 (2) - 2016=1.801 (5)
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