7Hiroyuki Hirata,Masahiko Hamada,and Yuji Arai et al.Material Design and Weldability of High Strength Seamless Pipe[C].19th Int Offshore and Polar Eng Conf (ISOPE),Kitakyushu,Japan,2009:67-72.
8Masahiko Hamada,Hidenori Shitamoto,and Hiroyuki Hirata et al.Tensile Properties and Microstructure of Girth Welds for High Strength Linepipe[C].19th Int Offshore and Polar Eng Conf (ISOPE),Kitakyushu,Japan,2009:50-55.
9Hammond J,Blackman S,Hudson M.Challenges of girth welding X100 linepipe for gas pipelines[C].Proc of Conf on Application & Evaluation of High Grade Linepipe in Hostile Environments,Yokohama,2002.