Abstract：MA island is an important part of some steel structure, whose content has a certain effect on the mechanical property such as ductility and strength. In this experiment, the quantitative method of MA island was analyzed. In the quantitative analysis, the samples were polished and eroded at first, and the MA islands were invaded into white. Then the confocal microscope was used to collect images, and the MA island had obvious contrast with the matrix organization. By using Sisc- Ias8 metallographic analysis software of Zhongkeyi and according to the two value segmentation to quantitate, the quantitative results of MA island were obtained. And finally the application of quantitative methods in the dual phase steel was described. The experiment showed that the quantitative technique of MA island could make up the deficiency of the previous quantitative analysis method, and rapidly and accurately analyze the percentage content of MA island in the steel structure.
温娟，其其格，鞠新华，贾惠平. 钢铁组织中MA岛含量的定量分析方法[J]. 中国冶金, 2018, 28(4): 22-26.
WEN Juan，QI Qi- ge，JU Xin- hua，JIA Hui- ping. Quantitative analysis methods of MA island content in iron and steel[J]. China Metallurgy, 2018, 28(4): 22-26.
2018, Vol. 28 
