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。
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.
巴氏噪声分析(BNA)是一种检测铁磁材料微观应力及金相组织的独特方法。
Barkhausen noise analysis (BNA) is a distinctive measure for testing microscopic stresses and metallurgical structure in ferromagnetic materials.
通过宏观分析、断口分析、化学成分检验、金相检验和力学性能检测等方法，对汽车发动机曲轴断裂原因进行了分析。
The analysis of automobile engine crankshaft was conducted by macroscopic examination, fracture analysis, chemical composition analysis, metallographic examination and mechanical properties test.
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