| 等温时效对节约型双相不锈钢2101析出行为的影响 |
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| 引用本文： | 方轶琉,刘振宇,王国栋.等温时效对节约型双相不锈钢2101析出行为的影响[J].钢铁研究学报,2010,22(6):21-21. |
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| 作者姓名： | 方轶琉 刘振宇 王国栋 |
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| 作者单位： | 东北大学轧制技术及连轧自动化国家重点试验室,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金资助项目，国家"973"计划资助项目 |
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| 摘 要： | 研究了700~850℃等温时效对节约型双相不锈钢LDX 2101析出行为的影响。研究结果表明经等温时效处理,颗粒状析出物主要在奥氏体和铁素体相界处形核长大,从而恶化材料的冲击韧性。700℃是影响该材料冲击韧性最敏感脆化温度。在700℃等温时效处理120 min后,冲击韧性值降低到33 J,仅为固溶处理后冲击韧性值的31%。经过TEM观察分析,颗粒状析出物主要是Cr2N型氮化物以及少量Cr23C6型碳化物。
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| 关 键 词： | 等温时效 节约型双相不锈钢 析出行为 冲击韧性 |
| 收稿时间： | 2009-06-22; |
Effect of Isothermal Aging on Precipitation Behavior of Lean Duplex Stainless Steel 2101 |
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| FANG Yi-liu,LIU Zhen-yu,Wang Guo-dong.Effect of Isothermal Aging on Precipitation Behavior of Lean Duplex Stainless Steel 2101[J].Journal of Iron and Steel Research,2010,22(6):21-21. |
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| Authors: | FANG Yi-liu LIU Zhen-yu Wang Guo-dong |
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| Abstract: | In this work, influence of isothermal aging treatments on precipitation behavior and impact energy of LDX 2101 had been studied. It was worked out that particle precipitates nucleated and grew at δ/γ interface which deteriorated impact energy during isothermal aging treatments. 700°C is the most sensitive embitterment temperature. After aged at 700°C for 30 min, the impact energy decreased to 33J, which was only 31% of the as-annealed sample. Based on TEM analysis, the mainly particle precipitates were mainly Cr2N-type nitrides and a little of Cr23C6-type carbides. |
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| Keywords: | Isothermal aging treatments LDX 2101 impact energy nitride |
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