TY - BOOK AU - Ahmed Said Yassien Mousa AU - Ahmed Asaad I. Khalil , AU - Hisham Imam Mahmoud , AU - Mohy Saad Mansour , TI - Investigations of the properties change of some alloys with mechanical stress using laser techniques / PY - 2016/// CY - Cairo : PB - Ahmed Said Yassien Mousa , KW - Heat treatment KW - ICP KW - LIBS N1 - Thesis (M.Sc.) - Cairo University - National Institute of Laser Enhanced Science - Department of Laser Application in Engineering; Issued also as CD N2 - In this thesis, LIBS has been utilized to determine the elemental composition of metal samples by forming micro plasma on the surface of a ten specimens from unknown standard steel alloy. LIBS and ICP methods were used for detecting elemental analysis of alloys. Laser hardening is a method of heat treatment of alloy steel depends on the potentiality of laser as heat source of high rapid heating rate occurring phase transformation on the heated surface ER -