Open AccessResidual stresses in Ti6Al4V alloy after surface texturing by femtosecond laser pulses
Author(s) -
М. В. Жидков,
Н. А. Смирнов,
J Chen,
S. I. Kudryashov,
I. Yu. Gоncharov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/862/2/022060
Subject(s) - materials science , laser , residual stress , titanium alloy , femtosecond , fluence , alloy , scanning electron microscope , composite material , diffraction , ultimate tensile strength , optics , titanium , laser scanning , metallurgy , physics
Surface topography and residual stresses in surface layers of α + β titanium alloy Ti6Al4V textured by 1030-nm, 320-fs-laser pulses were studied by scanning electron microscopy and X-ray diffraction analysis. It was found that multipulse laser processing leads to the formation of laser-induced periodic surface structures (LIPSS) on the surface of Ti6Al4V alloy. XRD studies showed that depending on the laser pulse fluence, both tensile and compressive residual stresses are formed in thin near-surface layers.