Influence of the long-term operation of 12Kh1M1F steel from different zones of a bend of steam pipeline of a thermal power plant on its mechanical characteristics

被引：0
作者：
O. Z. Student
L. M. Svirs’ka
I. R. Dzioba
机构：
[1] Ukrainian National Academy of Sciences,Karpenko Physicomechanical Institute
[2] Technological University,undefined
来源：
Materials Science | 2012年 / 48卷
关键词：
heat-resistant steel; in-service degradation; mechanical characteristics; static crack resistance; anisotropy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We estimate the characteristics of strength, ductility, and static crack resistance of 12Kh1MF steel taken from the stretched, compressed, and neutral zones of a vertical bend and a straight part of the main steam pipeline of a thermal power plant after ~ 1.3 ⋅105 h of operation. The anisotropy of the mechanical char acteristics in the diametric and axial sections of the pipe and their gradients across the thickness of the pipe wall in fracture are discovered.
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页码：239 / 246
页数：7
相关论文
共 26 条
[1]  
Solomakha M. A.(1988)On the reliability of the bends of steam pipelines made of 12Kh1MF steel Élektr. Stants. 4 15-19
[2]  
Makobotskii S. I.(1981)Analysis and generalization of the events of failures of the bends of nonheated pipes of boilers and steam pipelines Trudy Vseross. Teplotekh. Inst. 29 18-23
[3]  
Slobodchikova NI(1998)Effect of damage in service of 12Kh1MF steam-pipe steel on its crack resistance characteristics Mater. Sci. 34 110-114
[4]  
Romaniv OM(1985)Formation of intergranular cracks in the water-wall tubes of boilers of thermal electric power plants Mater. Sci. 21 483-487
[5]  
Nykyforchyn HM(2010)Properties of 13KhMF steel after operation and degradation under the laboratory conditions Mater. Sci. 46 357-364
[6]  
Dzyoba IR(2010)Evaluation of the influence of shutdowns of a technological process on changes in the in-service state of the metal of main steam pipelines of thermal power plants Mater. Sci. 46 177-189
[7]  
Student OZ(2010)Evaluation of the degradation of steels of steam pipelines according to their structural, mechanical, and electrochemical characteristics Mater. Sci. 46 431-439
[8]  
Melekhov RK(2009)Structural microdamageability of steels of the steam pipelines of thermal power plants Mater. Sci. 45 340-349
[9]  
Krutsan AM(2007)Abnormal manifestation of the high-temperature degradation of the weld metal of a low-alloy steel welded joint Mater. Sci. 43 77-84
[10]  
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