| 国产HR3C耐热钢的蠕变断裂研究 |
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| 引用本文： | 黄竹平,胡正飞,王起江,刘偲展.国产HR3C耐热钢的蠕变断裂研究[J].金属功能材料,2013(1):19-22. |
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| 作者姓名： | 黄竹平 胡正飞 王起江 刘偲展 |
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| 作者单位： | 同济大学材料科学与工程学院;上海宝山钢铁股份有限公司研究院 |
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| 摘 要： | HR3C钢是一种新型的奥氏体耐热钢,主要应用于超临界和超超临界机组的过热器和再热器。本文针对国产HR3C耐热钢,进行了持久强度试验,并通过分析蠕变断口的微观形貌,对其蠕变断裂进行了探讨。采用外推法计算出该钢105 h的持久强度极限为104.98MPa。相应的断口观察显示,HR3C钢的蠕变断裂类型属于沿晶断裂。
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| 关 键 词： | 蠕变断裂 HR3C 断口形貌 |
Research on Creep Rupture of Domestic HR3C Heat Resistant steel |
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| Affiliation: | HUANG Zhu-ping,HU Zheng-fei,WANG Qi-jiang,LIU Si-zhan(School of Materials Science and Engineering,Tongji University,Institute of Baosteel,Shanghai 201900,China) |
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| Abstract: | HR3C steel is a new kind of austenite heat resistant steel.It is mainly used in the superheater and reheater of SC and USC.The corresponding fractographs shows mainly intergranular fracture.Standard creep-rupture tests for domestic HR3C heat-resistant steel（HR3C HRS） were conducted at 650 ℃.The threshold strength at 650 ℃ was determined by extrapolation method to be σ650105=104.98 MPa,and this result conforms to be the requirement of ASTM standard of similar international products. |
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| Keywords: | creep rupture HR3C fractographs |
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