Li Defu, Wang Xijing
State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China.
School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China.
Materials (Basel). 2022 Aug 31;15(17):6011. doi: 10.3390/ma15176011.
Experiments of friction plug weld AA6082-T6 aluminum alloy hole defects were carried out by using the method of friction auxiliary heating between the shaft shoulder and base metal. The grain refinement of the joint's re-crystallized zone was significant, and there was obvious preferred orientation. Under the condition of other constant parameters, the rotational speed of the plug increases as the grain size of RZ increases and the component of High Angle Grain Boundaries decreases. The effect of a high deformation rate on dynamic re-crystallization is greater than that of high deformation temperature. The deformation texture component increased from 1600 r/min to 2000 r/min, while the re-crystallization texture component increased first and then decreased.
采用轴肩与母材间摩擦辅助加热的方法对AA6082-T6铝合金进行摩擦塞焊孔洞缺陷试验。接头再结晶区晶粒细化显著，存在明显的择优取向。在其他参数不变的情况下，塞棒转速随再结晶区晶粒尺寸增大、大角度晶界分量减小而增大。高变形速率对动态再结晶的影响大于高变形温度。变形织构分量从1600转/分钟增加到2000转/分钟，而再结晶织构分量先增加后减小。
