Abstract：The morphology， composition， content of residual ferrite and inclusions in 304L slab surface layer was studied by chemical etching， metallographic test， SEM and EPMA method. The phase transformation of 304L at 1 000-1 600 ℃ was analyzed by JMatPro software. The results show that the solidification mode of 304L stainless steels is Mode FA； the morphology of residual ferrite enriched in Cr and depleted in Ni is skeletal， dot and stick； the average content of residual ferrite is 8.57%； the spherical CaO-SiO2-Al2O3-MgO inclusions are the main inclusion in the surface layer of 304L austenitic stainless steel slab.
收稿日期: 2018-01-31
出版日期: 2018-11-06
引用本文:
陈兴润，潘吉祥. 304L板坯表层凝固组织和夹杂物分析[J]. , 2018, 37(5): 44-48.
CHEN Xing-run， PAN Ji-xiang. Analysis on microstructure and inclusions of slab surface layer in 304L stainless steel. , 2018, 37(5): 44-48.
2018, Vol. 37 
