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    • 10. 发明申请
    • BULK NANO-STRUCTURED LOW CARBON STEEL AND METHOD OF MANUFACTURING THE SAME
    • 大体积纳米结构低碳钢及其制造方法
    • WO2012083838A1
    • 2012-06-28
    • PCT/CN2011/084279
    • 2011-12-20
    • ROBERT BOSCH GMBHSUN, LixinTAO, NairongLU, KeKUNTZ, MatthiasYU, Jiaqing
    • SUN, LixinTAO, NairongLU, KeKUNTZ, MatthiasYU, Jiaqing
    • C21D8/06C21D8/00B82Y40/00
    • B21D31/06C21D8/00C21D8/06C21D2211/005C21D2211/009
    • The present invention relates to a method of manufacturing bulk nano-structured low carbon steel, comprising the steps of: preparing a blank of bulk low carbon steel; impacting the blank of bulk low carbon steel by using a compression device, so as to force the blank of bulk low carbon steel to perform a deformation at a high strain rate normally in a range of10 2 -10 3 /s, so that the microstructure of the blank of bulk low carbon steel is nano-structured, that is, bulk nano-structured low carbon steel is thus manufactured. In comparison with conventional low carbon steel, the nano-structured low carbon steel manufactured by the present invention has high tensile strength and fatigue limit, and the method of the present invention can be implemented by using not-so-complicated facilities, easily controlled and scaled up at an economic production cost. The present invention also relates to bulk nano-structured low carbon steel manufactured by the above-mentioned method, the bulk nano-structured low carbon steel preferably is a plate having a thickness of not less than 5 mm or a bar having a diameter of not less than 5 mm.
    • 本发明涉及一种制造本体纳米结构的低碳钢的方法,包括以下步骤:制备散装低碳钢的坯料; 通过使用压缩装置冲击大块低碳钢的坯料,从而迫使本体低碳钢的坯料通常在102-103 / s的高应变速率下进行变形,从而使 散装低碳钢的空白是纳米结构的,因此制造了大块纳米结构的低碳钢。 与传统的低碳钢相比,本发明制造的纳米结构的低碳钢具有高的拉伸强度和疲劳极限,本发明的方法可以通过使用不那么复杂的设备来实现,容易控制和 以经济生产成本增长。 本发明还涉及通过上述方法制造的块状纳米结构的低碳钢,本体纳米结构的低碳钢优选为厚度不小于5mm的板或直径不为5mm的棒 小于5毫米。