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。
The isothermal tempering embrittlement test of 2. 25Cr-1Mo alloy steel （%：0. 15C, 2. 32Cr,0. 95Mo, 0. 011S,0. 009P,0. 006 8As, 0. 0035Sb,0. 007 9Sn,0. 01V） for hydrogenation reactor with 14.6. 7 MPa applied stress at 4-68℃ for 125 h and 4.00 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 embrittlement transition temperature VTr54. 2 （℃） value at each status and temper embrittlement damage △VTr54. 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. 25 Cr-1Mo steel was not obvious.
出处
《特殊钢》
北大核心
2006年第6期1-3,共3页
Special Steel
