实验室评价管线钢抗硫化物应力开裂的四点弯曲法

Four-Point Bending Method for Evaluating SSC Resistance of Line Pipe Steel in Laboratory

介绍了国际上公认的四点弯曲法试验的受力特，点和应用。该方法是管线钢抗硫化物应力开裂（SSC）性能的重要实验室评价方法，在我国刚开始研究。

This paper introduces Four-point bending method recognized in the World and its application. This method is an important one for laboratory evaluation of SSC resistance of line pipe steel. It proceeds,now,to study this method at home.