Residual life of the (15HM) 13CrMo4-5 steel after 250 000 h service demonstrating internal damages in the form of voids

• Autorzy: Dziuba-Kałuża M. , Zieliński A. , Dobrzański J. , Sroka M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of the paper was to evaluate the material condition of the (15HM) 13CrMo4-5 steel after 250 000 h service under creep conditions demonstrating internal damages in the form of voids. Design/methodology/approach: The investigations of microstructure using the scanning electron microscopy and investigations of mechanical properties at room and elevated temperature were carried out. The brittle fracture appearance transition temperature was determined based on impact tests. Findings: The influence of long-term service under creep conditions on mechanical properties and structure degradation of 13CrMo4-5 steel was determined. Practical implications: The applied methodology and adopted practice will be used for evaluation of condition and estimation of further operation of elements in the pressure part of power equipment working under creep conditions. Originality/value: The obtained results of investigations are the elements of material characteristics developed by the Institute for Ferrous Metallurgy in Gliwice (Poland) for steels working under creep conditions.

Słowa kluczowe

EN

mechanical properties; structure; creep damage; steel 13CrMo4-5

PL

właściwości mechaniczne; struktura; degradacja pełzaniowa; stal 13CrMo4-5

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2015
• Tom: Vol. 73, nr 1
• Strony: 25--32
• Opis fizyczny: Bibliogr.

Twórcy

autor

Dziuba-Kałuża M.

• Institute for Ferrous Metallurgy, ul. K. Miarki 12-14, 44-100 Gliwice, Poland

autor

Zieliński A.

• Institute for Ferrous Metallurgy, ul. K. Miarki 12-14, 44-100 Gliwice, Poland

autor

Dobrzański J.

• Institute for Ferrous Metallurgy, ul. K. Miarki 12-14, 44-100 Gliwice, Poland

autor

Sroka M.

• Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

• [1] J. Dobrzański, Materials science interpretation of the life of steels for power plants, Open Access Library 3 (2011) 1-228.
• [2] A. Hernas, J. Dobrzański, Life-time and damage of boilers and steam turbines elements, Publishing House of the Silesian University of Technology, Gliwice, 2003 (in Polish).
• [3] A. Hernas, Materials and technologies for construction of supercritical boilers and waste incinerators, Joint publication edited by A. Hernas, Katowice, 2009.
• [4] J. Dobrzański, B. Kowalski, J. Wodzy ski, Technical diagnostics of critical components in the pressure part of power boilers working under creep conditions after exceeding the design work time, Current problems related to construction and operation of boilers; Silesian University of Technology, IMiUE 23 (2009) 85-126.
• [5] J. Dobrzański, A. Zieliński., H. Krztoń, Mechanical properties and structure of the Cr-Mo-V low-alloyed steel after long-term service in creep condition, Journal of Achievements in Materials and Manufacturing Engineering 23/1 (2007) 39-42.
• [6] J. Dobrzański, H. Krzto , A. Zieliński, Development of the precipitation processes in low-alloy Cr-Mo type steel for evolution of the material state after exceeding the assessed lifetime, Journal of Achievements in Materials and Manufacturing Engineering 23/2 (2007) 19-22.
• [7] M. Dziuba-Kałuża, J. Dobrzański, A. Zieliński: Life time of circumferential welded joints of critical elements of Cr-Mo and Cr-Mo-V low-alloy steel boilers after long-term service beyond the design time, Transactions of the Institute for Ferrous Metallurgy 65/3 (2013) 64-66.
• [8] A. Zieliński, J. Dobrzański, M. Dziuba-Kałuża, Structure of welded joints of 14MoV6-3 and 13CrMo4-5 steel elements after design work time under creep conditions, Archives of Materials Science and Engineering 61/2 (2013) 69-76.
• [9] G. Golański, A. Zieliński, A. Zielińska-Lipiec, Degradation of microstructure and mechanical properties in martensitic cast steel after ageing, Materialwissenschaft und Werkstofftechnik 46 (2015) 248-255.
• [10] A. Zieliński, G. Golański, M. Sroka, T. Tański, Influence of long-term service on microstructure, mechanical properties, and service life of HCM12A steel, Materials At High Temperatures (2015) doi: 10.1179/1878641315Y.0000000015
• [11] A. Zieliński, G. Golański, M. Sroka, J. Dobrzański, Estimation of long-term creep strength in austenitic power plant steels, Materials Science and Technology (2015) doi:10.1179/1743284715Y.0000000137
• [12] G. Golański, A. Zieliński, J. Słania, J. Jasak, Mechanical properties of vm12 steel after 30 000 hrs of ageing at 600°C temperature, Archives of Metallurgy and Materials 59 (2014) 1357-1360.
• [13] A. Zieliński, J. Dobrzański, H. Purzyńska, G. Golański, Properties, structure and creep resistance of austenitic steel Super 304H, Materials Testing 57 (2015) 859-865.
• [14] A. Zieliński, G. Golański, The influence of repair welded joint on the life of steam pipeline made of Cr-Mo steel serviced beyond the calculated working time, Archives of Metallurgy and Materials 60 (2015) 1045-1049.
• [15] A. Zieliński, M. Dziuba-Kałuża, J. Dobrzański, M. Sroka, The impact of repair welded joint on the life of Cr-Mo-V steel steam pipeline after service under creep conditions, Archives of Materials Science and Engineering 68/1 (2014) 36-44.
• [16] M. Sroka, A. Zieliński, Matrix replica method and artificial neural networks as a component of condition assessment of materials for the power industry, Archives of Materials Science and Engineering 58/2 (2012) 130-136.
• [17] J. Dobrzański, M. Sroka, Computer aided classification of internal damages the chromium-molybdenum steels after creep service, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 143-146.