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。
The influence of aluminum on the content and morphology of ferrite and toughness of chromium-nickel austenitic stainless steel welds is discussed.
本文研究了铬镍奥氏体焊缝中铝对铁素体含量和形态的影响及其与焊缝韧性的关系。
Introducing overall the three major methods of measuring ferrite content 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。
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