过共析钢是含碳量大于共析量的钢。
Hypereutectoid steels are steels that contain greater than the eutectoid amount of carbon.
此处理方法对必须机加工的过共析钢特别有用。
This treatment is particularly useful for hypereutectoid steels that must be machined.
钢含磷量提高到0．9％以上，控制钢丝的热处理制度，使过共析钢丝强韧性显著提高。
The strength and tenacity of super-eutectoid steel wire have been improved notably by increasing the carbon content of the steel to more than 0.9% and controlling the heat-treatment system.
由于恰好高于低临界温度通常使过共析钢奥氏体化而硬化，所以对外层采用较低的热处理温度。
The lower heat-treating temperature of the case results from the fact that hypereutectoid steels are normally austenitized for hardening just above the lower critical point.
为了准确地检验高碳过共析钢盘条中的网状渗碳体，分别对选用硝酸酒精溶液侵蚀和碱性苦味酸钠水溶液热侵蚀两种显示方法进行了比较。
In order to detect the carbide network in high carbon hypereutectoid steel wire rods accurately, two kinds of detection method of the carbide network are compared.
为了准确地检验高碳过共析钢盘条中的网状渗碳体，分别对选用硝酸酒精溶液侵蚀和碱性苦味酸钠水溶液热侵蚀两种显示方法进行了比较。
In order to detect the carbide network in high carbon hypereutectoid steel wire rods accurately, two kinds of detection method of the carbide network are compared.
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