ISSN：1003-8620

CN：42-1243/TF

主管：中信泰富特钢集团股份有限公司

主办：大冶特殊钢有限公司

特殊钢 ›› 2006, Vol. 27 ›› Issue (6): 1-3.

• 试验研究 •    下一篇

作用应力对2.25Cr-1Mo合金钢回火脆性的影响

周昌玉，胡桂明，孙宇   

  1. 南京工业大学机械与动力工程学院，南京210009
  • 收稿日期:2006-05-13 出版日期:2006-11-01 发布日期:2023-03-01
  • 作者简介:周昌玉(1963-)，男，博士，教授，从事化工设备的可靠性和 寿命预测的研究。

Influence of Applied Stress on Temper Embrittlement of 2. 25Cr-1Mo Alloy Steel

Zhou Changyu, Hu Guiming ， Sun Yu   

  1. College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009
  • Received:2006-05-13 Published:2006-11-01 Online:2023-03-01

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摘要： 在146.7MPa的作用应力下,对加氢反应器材料2.25Cr-1Mo合金钢(%:0.15C、2.32Cr、0.95Mo、0.011S、0.009P、0.0068As、0.0035Sb、0.0079Sn、0.01V)进行468℃125h和400h的等温回火脆化试验。根据加氢反应器母材试块脱脆、脆化和应力作用3种状态冲击功和温度关系曲线,得出各状态回火脆性转变温度VTr54.2(℃)值和回火脆化度ΔVTr54.2(℃)。结果表明,温度和等温时间是导致材料回火脆化的主要因素,作用应力对2.25Cr-1Mo钢回火脆性的影响不显著。

关键词: 2.25Cr-1Mo钢, 加氢反应器, 作用应力, 回火脆性

Abstract:  The isothermal tempering embrittlement test of 2. 25Cr-lMo alloy steel (% ： 0. 15C, 2. 32Cr, 0. 95Mo, 0. 011S,0. 009P,0. 006 8As,0. 003 5Sb,0. 007 9Sn,0. 01V) for hydrogenation reactor with 146. 7 MPa applied stress at 468 ℃ for 125 h and 400 h has been carried out. Based on the relation curves of temperature and impact energy of hydrogenation reactor parent metal sample at 3 kinds of status - de-embrittling, embrittling and applied stress, the temper embritdement transition temperature VTr54.2(℃) value at each status and temper embrittlement damage ΔVTr54.2(℃) were obtained. The results showed that temperature and isothermal time were main factors led to material embrittlement while the influence of applied stress on temper embrittlement of 2. 25Cr-1Mo steel was not obvious.

Key words:  , 2. 25Cr-lMo Steel, Hydrogenation Reactor, Applied Stress, Temper Embrittlement

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