대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제21권1호
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- Pages.22-31
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- 1997
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
입계부식법에 의한 사용중인 화력발전소 요소의 잔여수명평가
Assessment of Residual Life for In-Service Fossil Power Plant Components Using Grain Boundary Etching Method
- Han, Sang-In ;
- Yoon, Kee-Bong (Chungang University) ;
- Chung, Se-Hi (Dept.of Precision Mechanical Engineering, Chonbuk National University)
- 발행 : 1997.01.01
초록
The grain boundary etching method as a method for assessing degradation of structural materials has received much attention because it is simple, inexpensive and easy to apply to real components. In this study, the effectiveness of the method is verified by successfully applying the technique to in-service components of aged fossil power plants such as main steam pipes, boiler headers an turbine rotors. A new degradation parameter, intersecting number ratio (N
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