Microstructure of 316L austenitic stainless steel after QPQ complex salt bath heat treatment was investigated layer-by-layer by X-ray diffraction(XRD) and the scanning electronic microscopy(SEM).

• 采用逐层X射线衍射和扫描电镜研究了316L奥氏体不锈钢经QPQ盐浴复合处理后的显微组织。