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Abstrakty
This work presents the analysis the effort of phases which are present in the austenitic cast steel Fe-Ni-Cr-C, applied for elements of technological instrumentation for carburising furnaces. The reduced stresses [sigma]_red in the carbides and the austenitic matrix were determined in accordance with the assumed hypotheses of effort, on the basis of the structural stresses [sigma]_x [...] calculated by the finite element method for two model location cases of the carbides towards the cast steel surface. The hypotheses referred to the crack condition were applied to evaluate the elastic carbide efforts, while for the elastic-plastic austenitic matrix - the hypotheses referred to the plasticity condition were used. There were compared the reduced stresses óred determined in accordance with various hypotheses and the correctness of their applying. It was demonstrated on the basis of the executed analysis of the effort that the carbides are destroyed only when they are not entirely surrounded by the austenitic matrix.
Czasopismo
Rocznik
Tom
Strony
205--210
Opis fizyczny
Bibliogr. 32 poz., rys., tab.
Twórcy
autor
- Department of Engineering of Transport, Maritime University, Wały Chrobrego 1-2, 70-500 Szczecin, Poland, j.tuleja@am.szczecin.pl
Bibliografia
- [1] H. M. Tawancy, Degradation of mechanical strength of pyrolysis furnace tubes by high-temperature carburization in a petrochemical plant, Engineering Failure Analysis 16 (2009) 2171-2178.
- [2] A. Ul-Hamid, H. M. Tawancy, Failure analysis of furnace radiant tubes exposed to excessive temperature, Engineering Failure Analysis 13 (2006) 1005-1021.
- [3] R. K. Pandey, Failure analysis of styrene reactor tubes, Engineering Failure Analysis 13 (2006) 1314-1325.
- [4] K. Guan, H. Xu, Z. Wang, Analysis of failed ethylene cracking tubes, Engineering Failure Analysis 12 (2005) 420-431.
- [5] H. C. Furtado, I. Le May, High Temperature Degradation in Power Plants and Refineries, Materials Research, 7 (2004) 103-110.
- [6] A. Abada, Why Do Heat-Resistant Alloys Fail? Industrial Heating 69 (2002) 55-59.
- [7] B. Piekarski, Austenitic steel casting used in construction of carburising furnaces. WU PS Nr 573, Szczecin, 2003 (in Polish).
- [8] P. Gutowski, Research of fracture reason carrying-elements used in carburising furnaces, Doctoral dissertation, PS, 1989 (in Polish).
- [9] J. Grzyb, J. Trzeciałkowski, Mechanisms for heat treatment in adjustable atmospheres, WNT, Warszawa, 1975 (in Polish).
- [10] P. Kula, Engineering of surface layer, Publishing house PŁ, Łódź, 2002 (in Polish).
- [11] T. Pełczyński, Heat – chemical treatment of metals and semiconductors, Publishing house PL, Lublin, 2000 (in Polish).
- [12] P. Gutowski, J. Tuleja, The effort analysis of fracture propagation in stable austenitic casting alloy under rapid change of temperature, ATMiA, 25 (2006) 25-37 (in Polish).
- [13] J. Tuleja, P. Gutowski, M. Leus, Tessellated stresses in stable austenitic casting under rapid changes of temperature, Archives of Foundry 6/22 (2006) 590-597 (in Polish).
- [14] J. Tuleja, Fracture formation in austenitic cast steel during thermal fatigue, Archives of Foundry Engineering, 8/1 (2008) 139-142.
- [15] P. Gutowski, Development of tessellated stresses in cast steel LH17N36S as an effect of carburization and thermal shocks, ATMiA 12 (1993) 231-246 (in Polish).
- [16] P. Gutowski, The Use of the Finite Element Method to Calculate Tessellated Stresses in Multiphase Alloys, Proceedings of the 10th Congress on Material Testing, 1 (1991) 267-272.
- [17] H. Dąbrowski, Structural – statistic criterion of effort of multi-phase materials on example of fibrous polymeric composites, Publishing house PW, Wrocław, 2003 (in Polish).
- [18] M. Syczewski, J. Wiszniewski, The analysis of the reinforced concrete element effort which has been subjected to the destructive processes, ZN PB – Building, 24 (2003) 203-212 (in Polish).
- [19] R. Bąk, T. Burczyński, Strength with elements of computational quantification, WNT, Warszawa, 2001 (in Polish).
- [20] M. Biel-Gołaska, L. Gołaski, Strength theories and diagrams of mechanical behaviour of the metallic materials, Works IO 1-2 (1998) 107-121 (in Polish).
- [21] N. N. Malinin, J. Rżysko, Mechanics of materials, PWN, Warszawa, 1981 (in Polish).
- [22] Z. Dyląg and oth., Strength of materials, PWN, Warszawa, 1996 (in Polish).
- [23] J. Rżysko, Static and strength of materials, PWN, Warszawa, 1977 (in Polish).
- [24] A. Gawęcki, Mechanics of materials and rod constructions, Alma Mater, Poznań, 2003 (in Polish).
- [25] E. Rusiński i in., Advanced finite element method in supporting structures, Publishing house PW, Wrocław, 2000 (in Polish).
- [26] T. Niezgodziński, Photo-elasticity and finite element method in fracture mechanics, Monographs PŁ, Łódź, 2007 (in Polish).
- [27] R. Żuchowski, Strength of materials, Publishing house PW, Wrocław, 1996 (in Polish).
- [28] M. E. Niezgodziński, T. Niezgodziński, Strength of materials, PWN, Warszawa, 1984 (in Polish).
- [29] W. Burzyński, The chosen works, t. 1, PWN, Warszawa, 1982 (in Polish).
- [30] D. Music, U. Kreissing, R. Mertens, Electronic structure and mechanical properties of Cr7C3, Physics Letters A 326 (2004) 473-476.
- [31] B. Xiao, J. D. Xing, J. Feng, Theoretical study on the stability and mechanical property of Cr7C3, Physica B 40
- [32] Union Carbide Corporation, December 1986, ME, s.189.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ3-0037-0035