Study of structure of dual phase steel after laser heat treatment using moving distributed surface heat sources

2020 ◽  
Author(s):  
Serguei Murzin ◽  
Nikolay Kazanskiy ◽  
Gerhard Liedl ◽  
Robert Bielak ◽  
Alexey Melnikov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Dual Phase Steel ◽  
Surface Heat ◽  
Dual Phase ◽  
Heat Sources ◽  
Laser Heat Treatment ◽  
Laser Heat

scholarly journals Laser heat treatment of martensitic steel and dual-phase steel with high martensite content

2019 ◽  
Vol 752 ◽  
pp. 128-135 ◽  
Author(s):  
Pierre Lapouge ◽  
Justin Dirrenberger ◽  
Frédéric Coste ◽  
Matthieu Schneider
Keyword(s):  
Heat Treatment ◽  
Dual Phase Steel ◽  
Martensitic Steel ◽  
Dual Phase ◽  
Laser Heat Treatment ◽  
Martensite Content ◽  
Laser Heat

Local Laser Heat Treatment in Dual-Phase Steels

2011 ◽  
Vol 43 (4) ◽  
pp. 1244-1258 ◽  
Author(s):  
Mehdi Asadi ◽  
Georg Frommeyer ◽  
Ali Aghajani ◽  
Ilana Timokhina ◽  
Heinz Palkowski
Keyword(s):  
Heat Treatment ◽  
Dual Phase ◽  
Laser Heat Treatment ◽  
Dual Phase Steels ◽  
Laser Heat

Optimization of the Case Depth of a Cylinder Made With 4340 Steel by a Control of the Laser Heat Treatment Parameters

2018 ◽  
Author(s):  
Rachid Fakir ◽  
Noureddine Barka ◽  
Jean Brousseau
Keyword(s):  
Heat Treatment ◽  
Numerical Model ◽  
Surface Temperature ◽  
Laser Power ◽  
Case Depth ◽  
Maximum Temperature ◽  
Laser Heat Treatment ◽  
Laser Heat ◽  
4340 Steel ◽  
Cylindrical Workpiece

This paper presents a numerical model able to control the temperature distribution along a 4340 steel cylinder heat-treated with Nd: YAG laser. The numerical model developed using the numerical finite element method, was based on a study of surface temperature variation and the adjustment of this temperature by a control of the heat treatment laser power. The proposed analytical approach was built gradually by (i) the development of a numerical model of laser heat treatment of the cylindrical workpiece, (ii) an analysis of the results of simulations and experimental tests, (iii) development of a laser power adjustment approach, and (iv) proposal of a laser power control predictor using neural networks. This approach was made possible by highlighting the influence of the fixed (non-variable) parameters of the laser heat treatment on the case depth, and has shown that it is possible by controlling the laser parameters to homogenize the distribution of the maximum temperature reached on the surface for a uniform case depth. The feasibility and effectiveness of the proposed approach leads to a reliable and accurate model able to guarantee a uniform surface temperature and a regular case depth for a cylindrical workpiece of a length of 50-mm and with a diameter of between 16-mm and 22-mm.

Sub-millisecond post exposure bake of chemically amplified resists by CO 2 laser heat treatment

2010 ◽  
Author(s):  
Byungki Jung ◽  
Jing Sha ◽  
Florencia Paredes ◽  
Christopher K. Ober ◽  
Michael O. Thompson ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Laser Heat Treatment ◽  
Post Exposure ◽  
Chemically Amplified ◽  
Laser Heat ◽  
Post Exposure Bake ◽  
Chemically Amplified Resists
Sign in / Sign up

Export Citation Format

Share Document