|
|||||
|
|
Evolution of a laser-generated shock wave in iron and its interaction with martensitic transformation and twinning |
|
| Authors: | I.V. Erofeev V.V. Silberschmidt A.A. Kalin V.A. Moiseev I.V. Solomatin |
| Affiliation: | (1) Moscow Institute for Physical Engineering, 31 Kashirskoe Av., 115409 Moscow, Russia , RU;(2) Lehrstuhl A für Mechanik, TU München, Boltzmannstr. 15, D-85746 Garching b. München, Germany , DE;(3) Mining Institute, Ural Department of the Russian Academy of Sciences, 78A Karl Marx Street, 614007 Perm, Russia , RU |
| Abstract: | Effects of shock waves (generated by a nanosecond laser pulse in plates of Armco-iron) on structural changes are analysed. Localisation of processes of martensitic transformation and twinning – for various values of laser pulse duration – is studied both experimentally and numerically. A proposed model accounts for interaction of shock wave propagation and structure changes. Realisation of martensitic transformation and twin formation influences wave front modification. A stress amplitude decrease with increasing distance from a microcrater determines, together with the pulse duration, a character of spatial localisation of structural changes. Numerical results are compared with experimental data and serve as a basis for additional interpretation of phenomena. Received 9 August 1994 / Accepted 30 June 1997 |
| Keywords: | :Nanosecond laser pulse Martensitic transformation Twinning Localisation |
| 本文献已被 SpringerLink 等数据库收录！ | |