5L.Lebedeva, G.N.Presnyakova. Adhesion wear mechanisms under dry fiction of titanium alloys in vacuum. Wear. 1991,148:203～210.
6Yoshiaki Suda, Hiroharu Kawasaki, Tsuyoshi Ueda. Preparation of high quality nitrogen doped TiO thin film as a photo catalyst using a pulsed laser deposition method. Thin Solid Films.2004,453～454:162～166.
7A.Mehlmann, S.F.Dimfeld, I.Minkoff. Laser-Melt injection of B4C on titanium. Surface and Coatings Technology. 1990,42:275～281.
8J.Senthil Selvan, K.Subramanian,etc. Laser boronising of Ti-6Al-4V as a result of laser alloying with pre-placed BN. Materials Science and Engineering. 1999, A260:178～187.
9V.M.Weerasinghe, D.R.F.West, J.de Damborenea. Laser surface nitriding of titanium and a titanium alloy. Journal of Materials Processing Technology 1996,58:79～86.
10A.I.P.NWOBU, R.D.RAWLINGS and D.R.F.WEST. Nitride formation in titanium based substrates during laser surface melting in nitrogen-argon atmospheres. Acta mater. 1999,47(2):631～643.
