通过热轧试验,利用扫描电镜,TEM观察和EBSD技术等分析显微组织与力学性能之间的关系.研究结果表明:显微组织以GB+AF组织为主,AF组织呈典型的长条针状;以块状形式转变的准多边形铁素体为主,内部含有大量位错,高位错密度形成位错胞,位错线上分布着细小的析出相,具有高强度和良好冲击韧性;大角度晶界占整个分析区域内晶界的88%,大角度晶界主要分布在30°～60°,对冲击韧性非常有利.
参考文献
| [1] | Graf M K;Hillenbrand H G;Hechmann C J.HighStrength Large-Diameter Pipe for Long-Distance High Pressure Gas Pipelines[A].Hawaii:The International Society of Offshore and Polar Engineers,2003:97. |
| [2] | Hitoshi A;Takuya H;Eiji T.Development of UltraHigh-Strength Linepipe Xl20[J].NIPPON STEEL TECHNICAL REPORT,2004(09):82. |
| [3] | Koo J K;Luton M J;Bangaru N V.Metallurgical Design of Ultra-High Strength Steels for Gas Pipelines[A].Hawaii:The International Society of Offshore and Polar Engineers,2003:10. |
| [4] | 董翰.先进钢铁材料[M].北京:科学出版社,2007 |
| [5] | 刘守显 .高强度管线钢X100的基础技术研究[D].昆明:昆明理工大学,2007. |
| [6] | Hillenbrand H G;Amoris E;Niederhoff K A.Manufacture Ability of Pipeline in Grades up to X100 From TM Processed Plate[A].Ostende:Pipeline Technology,1995:1. |
| [7] | 李鹤林;郭生武.高强度微合金管线钢显微组织分析与鉴别图谱[M].北京;石油工艺出版社,2001 |
| [8] | Diaz-Fuentes M;Iza-Mendia A;Gutierrez I .Analysis of Different Acicular Ferrite Microstructures in Low-Carbon Steels by Electron Backscattered Diffraction-Study of Their Toughness Behavior[J].Metallurgical and Materials Transactions,2003,34:2505. |
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%