Effect of Tensile Strain on Low-Temperature Toughness of 9Ni Steel
LIU Dong-feng1,2,WEI Ying-hui1,FAN Guang-wei2
1. School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China 2. Technology Center, Taiyuan Iron and Steel Group Co., Ltd., Taiyuan 030003, Shanxi, China
Abstract��Effect of tensile strains on low-temperature toughness of 9Ni steel for liquefied natural gas (LNG) tanks has been studied. The results of mechanical properties combined with microstructure and transmission electron microscopy (TEM) analysis show that, high strain ageing sensitivity is obtained with the tensile strain of 5% and above. However, the toughness after ageing could be recovered to non-ageing level by a suitable tempering treatment.
������ ����Ӣ�ۣ�����ΰ. ����Ӧ���9Ni�ֵ������Ե�Ӱ��[J]. �й������ڿ���, 2013, 31(6): 12-16.
LIU Dong-feng,,WEI Ying-hui,FAN Guang-wei. Effect of Tensile Strain on Low-Temperature Toughness of 9Ni Steel. Chinese Journal of Iron and Steel, 2013, 31(6): 12-16.
2013, Vol. 31 
