5Zhuang LZ, Langer EW. Observations on the faceted fatigue fracture of cast Co-Cr-Mo alloy used for surgical implmlts [J]. Metallurgical Transactions A (Physical Metallurgy and Materials Science), 1989,20A(I) :99-103.
6Himmn RW, Tesk JA, Whitlock RP, et al. A technique for clmrac-terizing casting behavior of dental alloys [J]. J Dent Res, 1985,64(2) :134-138.
7Yong HM, Coffey JP, Caswell CW. Spree design and its effect on the castability of eeremomental alloys[J]. J Prosthet Dent, 1987, 57(2) :160-164.
8Okuno O, Tesk JA, Penn R. Mesh monitor casting of Ni-Cr alloys el-ement effects [J]. Dent Mater, 1989,5 (5) : 294-300.
9Prosper M, Tanja M, Jadranka M. Svojstva biomedieinskih Co-Cr-Mo shitina[J]. Metalurglja ( Metallurgy), 1998,37(1) : 15-19.
10Craig RG, Powers JM. Restorative Dental Materials[M]. 11th ed. St Louis: Mosby, 2002: 105.
