Non-destructive metallography & replica method for inspection connecting rod material and cracks detection

• Autorzy: Kovacevic Z. , Karastojkovic Z. , Aleksic V.
• Języki publikacji: EN

Abstrakty

EN

Testing of materials properties is usually a discipline for the quality assurance during manufacturing processes. In condition monitoring, certification or upgrading of existing plants and in failure analysis similar benefits from non-destructive testing of materials properties can be achieved. Another benefit from the Non-Destructive Metallography (NDM) is that the test can be made on-site. NDM is a well established and proven tool to help determine the integrity of generator and hydro turbine components during their life-cycle in power plant environments. On-site metallography of components makes it possible to evaluate the microstructure of materials. It allows microstructural analysis of large components that are difficult to move or not permitted to be destructively tested, enabling rapid evaluation of the material. Here are monitored the microstructural changes and crack detection in St 35 connecting rod steel after approximately 15 years in service. The paper includes a short description of the replica method as a technique for microstructural examination of components by using non-destructive testing method.

Słowa kluczowe

EN

Non-Destructive Metallography; NDM; replica method; microstructure changes; connecting-rod

PL

metalografia nieniszcząca; NDM; metoda repliki; zmiany mikrostruktury; korbowód

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Production Engineering Archives
• Rocznik: 2013
• Tom: Vol. 1, No. 1
• Strony: 22--24
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Kovacevic Z.

• Institute for Testing of Materials, Serbia Institute, Bulevar vojvode Misica 43 St., 11000 Belgrade, Serbia

autor

Karastojkovic Z.

• Institute for Testing of Materials, Serbia Institute, Bulevar vojvode Misica 43 St., 11000 Belgrade, Serbia

autor

Aleksic V.

• Technical College, Serbia

Bibliografia

• [1] ASM HANDBOOK. 1989. VOLUME 9. Metallography and Microstructure. ASM Handbook Committee. 1989.
• [2] ASM HANDBOOK. 1989. VOLUME 11. Failure analysis and prevention. ASM Handbook Committee. 1989.
• [3] ASM HANDBOOK. 1989. VOLUME 17. Nondestructive Evaluation and Quality Control. ASM Handbook Committee. 1989.
• [4] "Emergency Standard Practice for Production and Evaluation of Field Metallographic Replicas", ASTM ES-12-87.
• [5] Kehl G.L., 1949. The Principles of Metallographic Laboratory Practice, 3rd Ed., 1949.
• [6] Kovačević Z., Karastojković Z., Janjušević Z. 2009. Characteristic changes in microstructure of steel ČSN 15223.9 from boiler drum at power station monitored by replica method. Mining and Metallurgy Institute. Bor. 2009. 41th International October Conference on Mining and Metallurgy. Kladovo 2009.
• [7] "NDT-Metallographic Replica Techniques of Surface Examinations". ISO 3057-1974.
• [8] Neubuer B. & Wedel U. 1994. NDT Replication Avoids Unnecessary Replacement of Power Plant Components. Power Engineering. 1994.
• [9] Vander Vort G.F. 1984. Metallography: Principles and Practice. McGraw-Hill.