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Fabrication of an abrasion resistant steel sheet having a good flatness with a martensite or bainite or martensite-bainite structure and some retained austenite
Fabrication of an abrasion resistant steel sheet having a good flatness with a martensite or bainite or martensite-bainite structure and some retained austenite
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机译：具有马氏体或贝氏体或马氏体-贝氏体组织以及一些残留奥氏体的具有良好平坦度的耐磨钢板的制造
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摘要
The fabrication of a steel sheet resistant to abrasion consists of subjecting the sheet to a heat treatment in the hot forming operation or after austenitization by reheating in a furnace, for realizing the hardening one: (a) cools at a medium cooling rate of greater than 0.5 degrees C/s between a temperature greater than Ac3 and a given temperature between T and T-50; (b) then cools at a core medium cooling rate Vr less than 1150 x ep-1.7 and greater than 0.1 degrees C/s between the temperature T and 100 degrees C, ep being the thickness of the sheet in mm; (c) cools to ambient temperature and possibly effects a planishing operation. The temperature T is defined as being T = 800 - 270 x C asterisk - 90 x Mn - 37 x Ni - 70 x Cr - 83 x (Mo +W/2).
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机译：耐磨损钢板的制造包括在热成型操作中或在奥氏体化后通过在炉中再加热对钢板进行热处理，以实现硬化：（a）以大于在大于Ac3的温度与T和T-50之间的给定温度之间为0.5摄氏度/秒; （b）然后在温度T和100摄氏度之间以小于1150 x ep-1.7且大于0.1摄氏度/秒的核心介质冷却速率Vr进行冷却，ep是片材的厚度，单位为mm; （c）冷却至环境温度，并可能进行平整操作。温度T定义为T ＝ 800-270×C星号-90×Mn-37×Ni-70×Cr-83×（Mo + W / 2）。
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