双相不锈钢中相含量的精确测定

Accurate Measurement Phase Content of Double-phase Stainless Steel

在400倍金相显微镜上采用网格交点记数法测定双相不锈钢中的相含量.结果表明,该方法比采用标准图谱法更精确,总测试点数为1000个时,误差为1.6%.

Utilizing lattice point of intersection falling to the different positi on among the visual field,every phase content of double-phases stainless steel is accurately measured.The method is more accurate com-pared with collection of illustrative plates,can apply to measure the phase content in other organizations.