Employed by optical microscope, scanning electron microscope, microhardness tester and X ray diffraction instrument, the isothermal decomposition process of high nitrogen austenite was investigated.

利用光学显微镜、扫描电镜、显微硬度计及X射线衍射仪分析了高氮奥氏体的等温分解过程。

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The alloy steels are named High nitrogen steels (HNS) if the nitrogen element percent in the ferrites is above 0.08%or the nitrogen percent is more than 0.4%in the austenite.

在合金钢中，如果铁素体中含有0.08%以上的氮元素或者奥氏体中含有0.4%以上的氮元素，则这种钢就称为高氮合金钢(HNS)。

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