Introducing overall the three major methods of measuring ferritecontent in austenitic and duplex stainless steel, it is chemical analysis-diagram method, metallographic method and magnetic method.
全面介绍了检测奥氏体及双相不锈钢中铁素体含量的三种常用方法：化学分析-图谱法，金相法及磁性法。
2
The results show that the addition of Zr increases the content of acicular ferrite and improves the microstructure of weld metal.
结果表明，锆的加入增加了焊缝金属中针状铁素体的含量，改善了焊缝金属的微观组织。
3
The influence of aluminum on the content and morphology of ferrite and toughness of chromium-nickel austenitic stainless steel welds is discussed.