The influence of welding speed on the joint microstructures of an austenitic stainless steel (ASS) produced by friction stir welding (FSW) was investigated. The FSW process was conducted using a rotational speed of 400 r/min and welding speeds of 50 and 150 mm/min. The study was carried out using electron backscattered diffraction (EBSD) technique in different regions of the resultant stir zones (SZs). The results show that the texture of the advancing side (AS) was mainly composed of C {001} ❬110❭ and cube {001} ❬100❭ texture components along with partial \({\rm B}/\bar{{\rm B}}\) {112}❬110❭ component. Moving from the AS toward the center and the retreating side (RS), the cube texture component disappeared and the A*₁ /A*₂ {111} ❬112❭ component developed and predominated the other components. Higher welding speed greatly affected and decreased the intensity of the textures in the resultant SZs. Moreover, higher welding speed (lower heat input) resulted in lower frequency of cube texture in the AS.

研究了焊接速度对搅拌摩擦焊（FSW）生产的奥氏体不锈钢（ASS）接头组织的影响。FSW工艺是使用400 r / min的转速以及50和150 mm / min的焊接速度进行的。该研究使用电子背散射衍射（EBSD）技术在所得搅拌区（SZs）的不同区域中进行。结果表明，前移面（AS）的纹理主要由C {001}❬110❭和立方体{001}❬100❭纹理成分以及部分\（{\ rm B} / \ bar {{\ rm B}} \） {112}❬110❭组件。从AS向中心和后退侧（RS）移动，立方体纹理分量消失，A * ₁ / A * ₂{111}❬112❭零件的开发和使用占主导地位。较高的焊接速度大大影响并降低了所得SZ中织构的强度。此外，较高的焊接速度（较低的热量输入）导致AS中的立方织构频率降低。