6LI Longsheng, YANG Dazhi, WEI Guangsheng, et al. Structure and properties of low-carbon high-manganese cast steels for cryogenic use [J]. Metallography, 1982, 15(4): 355-365.
7SMOLJAN B. Analysis of combined cyclic heat treatment performance[J]. Journal of Material Processing Technology, 2004, 155/156(4):1704-1707.
8Ohsaki M. Design sensitivity analysis and optimization for nonlin- ear buckling of finite-dimensional elastic conservative structures [J]. Computer Methods in Applied Mechanics and Engineering. 2005, 194(30): 3331-3358.
9AP1 SPEC 8C-2003. Specification for Drilling and Production Hoisting Equipment (PSL 1 and SL2) [S].
10API SPEC 8A-1997. Recommended Practice for Procedures for Inspections, Maintenance. Repair and Remanufacture of Hoisting Equipment [S].
