利用高精度差分膨胀仪对冷却过程中T91钢奥氏体稳定化的相变行为进行分析,研究了在Ms点以上温度保温时奥氏体稳定化现象对T91钢马氏体转变开始温度的影响.研究表明:在T91钢Ms点以上较高温度保温时,出现马氏体转变开始温度高于MJ点的明显的反稳定化现象,并随保温时间延长反稳定化程度增加;在Ms点以上较低温度保温时,T91钢的马氏体转变开始温度低于MI点,且随保温时间的延长继续降低,而其最终组织仍为完全马氏体.
参考文献
| [1] | Fujio Abe.Analysis of creep rates of tempered martensitic 9%Cr steel based onmicrostructure evolution[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009:64-69. |
| [2] | J. Hald .Microstructure and long-term creep properties of 9-12% Cr steels[J].International Journal of Pressure Vessels and Piping,2008(1/2):30-37. |
| [3] | Y. Wang;K.-H. Mayer;A. Scholz;C. Berger;H. Chilukuru;K. Durst;W. Blum.Development of new 11 %Cr heat resistant ferritic steels withenhanced creep resistance for steam power plants withoperating steam temperatures up to 650 °C[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009:180-184. |
| [4] | J. C. Vaillant;B. Vandenberghe;B. Hahn;H. Heuser;C. Jochum .T/P23, 24, 911 and 92: New grades for advanced coal-fired power plants - Properties and experience[J].International Journal of Pressure Vessels and Piping,2008(1/2):38-46. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%