Experimental research on the mechanism of the Kaiser effect in metal

Abstract

The paper that is based on the mesoscopic damage evolution of metal explores the mechanism of Kaiser effect. Unidirectional and multidirectional tensile experiments of Q345 material were conducted to reveal the relationship between the internal damage evolution of mesoscopic holes and Kaiser effect. The results show that the forcewill cause the damage corresponding to the direction of force. When the direction of the load changes, the hole evolution direction will change with the change and a new damage will appear again. At this time the memory of Kaiser effect exists no longer. Therefore, Kaiser effect is closely related to the vector of force. As long as either magnitude or direction of force changes, the memory will be affected.