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電脈沖處理對(duì)預(yù)變形Fe13Mn6Si13Cr4Ni0.1C合金形狀記憶效應(yīng)及顯微組織的影響
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1.四川建筑職業(yè)技術(shù)學(xué)院 博士后創(chuàng)新實(shí)踐基地;2.四川大學(xué) 制造科學(xué)與工程學(xué)院

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國(guó)家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）


Effects of Electric Pulse Treatment on Shape Memory Effect and Microstructure in a Pre-deformation Fe13Mn6Si13Cr4Ni0.1C Alloy
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1.Innovation and Practice Base for Postdoctors, Sichuan College of Architectural Technology;2.College of Manufacturing Science and Engineering, Sichuan University

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    摘要:

    研究了電脈沖處理對(duì)預(yù)變形Fe13Mn6Si13Cr4Ni0.1C合金形狀記憶效應(yīng)及其顯微組織的影響。結(jié)果表明：電脈沖處理能加速Cr和C原子的遷移及Cr23C6碳化物的析出，降低時(shí)效溫度，縮短時(shí)效時(shí)間，并能誘發(fā)Cr23C6碳化物的形核。因此，與10%拉伸預(yù)變形后再973K，1073K時(shí)效的合金相比，10%拉伸預(yù)變形后300V，1100μf,1Hz電脈沖處理的Fe13Mn6Si13Cr4Ni0.1C合金，其形狀回復(fù)率能在300s時(shí)間內(nèi)從固溶態(tài)合金的32%提高到87.2%。

    Abstract:

    Effects of electric pulse treatment on shape memory effect and microstructure in a pre-deformation Fe13Mn6Si13Cr4Ni0.1C alloy were investigated. The results indicate that electric pulse treatment can accelerate migration of Cr and C atoms and precipitation of Cr23C6 carbides, lower ageing temperature, shorten ageing time and induce nucleation of Cr23C6 carbides. Therefore, the shape recovery ratio was improved to 87.2% from 32% of a water-quenching alloy within 300 s in a Fe13Mn6Si13Cr4Ni0.1C alloy by 300 V, 1100 μf, 1 Hz electric pulse treatment after 10% tensile pre-deformation compared to alloys aged at 973 K, 1073 K respectively following the same pre-deformation.

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楊世洲,李寧.電脈沖處理對(duì)預(yù)變形Fe13Mn6Si13Cr4Ni0.1C合金形狀記憶效應(yīng)及顯微組織的影響[J].稀有金屬材料與工程,2016,45(1):51~55.[Yang Shizhou, Li Ning. Effects of Electric Pulse Treatment on Shape Memory Effect and Microstructure in a Pre-deformation Fe13Mn6Si13Cr4Ni0.1C Alloy[J]. Rare Metal Materials and Engineering,2016,45(1):51~55.]
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  • 收稿日期:2014-01-04
  • 最后修改日期:2014-02-12
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  • 在線發(fā)布日期: 2019-01-04
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