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首页> 外文期刊>Annals of nuclear energy >Effects of an intermediate heat treatment during a cold rolling on the tensile strength of a 9Cr-2W steel
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Effects of an intermediate heat treatment during a cold rolling on the tensile strength of a 9Cr-2W steel

机译：冷轧中间热处理对9Cr-2W钢拉伸强度的影响

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摘要

The effects of an intermediate heat treatment during a cold rolling on the tensile strength of a 9Cr-2W steel were evaluated. Before a cold rolling, the steel was normalized at 1050 ℃ and tempered at 550 ℃ in order to avoid the formation of M_(23)C_6 and V-rich MX precipitates in the martensitic structure. A 75% cold rolling and a heat treatment at 750 ℃ for 30 min induced the formation of large M_(23)C_6 carbides in a fully recrystallized structure. However, three cold rollings with an intermediate heat treatment at 750 ℃ for 10 min after each cold rolling led to the formation of fine and uniform M_(23)C_6 carbides in a partially recrystallized structure, providing an enhanced tensile strength at 650 "C. It is thus concluded that an intermediate heat treatment during a cold rolling could be an effective procedure for fabricating a high strength 9Cr-2W steel at high temperatures.
机译：评价了冷轧中的中间热处理对9Cr-2W钢的拉伸强度的影响。冷轧前，将钢在1050℃进行正火，然后在550℃进行回火，以避免在马氏体组织中形成M_（23）C_6和富V的MX沉淀。 75％的冷轧和750℃的热处理30分钟诱导了完全重结晶组织中大M_（23）C_6碳化物的形成。但是，每次冷轧后在750℃进行10分钟的中间热处理的三个冷轧导致在部分重结晶的组织中形成细而均匀的M_（23）C_6碳化物，从而在650“ C时提供了增强的拉伸强度。因此得出结论，冷轧过程中的中间热处理可能是在高温下制造高强度9Cr-2W钢的有效方法。

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  • 来源
    《Annals of nuclear energy》 |2009年第8期|1103-1107|共5页
  • 作者

    Tae Kyu Kim; Sung Ho Kim; Chan Bock Lee;

  • 作者单位

    Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong, Daejeon 305-353, Republic of Korea;

    Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong, Daejeon 305-353, Republic of Korea;

    Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yuseong, Daejeon 305-353, Republic of Korea;

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