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Evaluation of Monkman-Grant Parameters for Type 316LN and Modified 9Cr-Mo Stainless Steels  

Kim, Woo-Gon (Department of Nuclear Material Technology Development, Korea Atomic Energy Research Institute)
Kim, Sung-Ho (Department of Nuclear Material Technology Development, Korea Atomic Energy Research Institute)
Ryu, Woo-Seog (Department of Nuclear Material Technology Development, Korea Atomic Energy Research Institute)
Publication Information
Journal of Mechanical Science and Technology / v.16, no.11, 2002 , pp. 1420-1427 More about this Journal
Abstract
The Monkman-Grant (M-G) and its modified parameters were evaluated for type 316LN and modified 9Cr-Mo stainless steels prepared with minor element variations. Several sets of creep data for the two alloy systems were obtained by constant-load creep tests in 550～650$\^{C}$ temperature range. The M-G parameters, m, m', C, and C' were proposed and discussed for the two alloy systems. The m value of the M-C relation was 0.90 in type 316LN steel and 0.84 in modified 9Cr-Mo steel. The m' value of the modified relation was 0.94 in type 316LN steel and 0.89 in 9Cr-Mo steel. Although creep fracture modes and creep properties between type 316LN and modified 9Cr-Mo steels showed a basic difference, the M-G and its modified relations demonstrated linearity quite well. The m' of modified relation almost overlapped regardless of the creep testing conditions and chemical variations in the two alloy systems, and the parameter m' was closer to unity than that of the M-G relation.
Keywords
Monkman-Grant (M-G) Parameter; Creep; Type 316 LN Stainless Steel; 9Cr-Mo Stainless Steel; Steady-State Creep Rate; Rupture Time;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Nakazawa, T., Abo, H., Tanino, M., Komatsu, H., Nishida, T. and Tashimo, M., 1988, 'Effect of Nitrogen and Carbon on Creep Properties of Type 316 Stainless Steels,' Proc. of High Nitrogen Steels-HNS 88, held at Lile in France, pp. 218-223
2 Penny, R.K. and Marriott, D.L., 1995, Design for Creep, Chapman & Hall, London, pp. 139-199
3 Riedel, H., 1987, Fracture at High Temperature, Material Research and Engineering, Edited by Ilschner, B. and Grant, N.J., Springer Verlag, pp. 389-390
4 Viswanathan, R., 1989, Damage Mechanisms and Life Assessment of High-Temperature Components, ASM International, pp. 10-18
5 Kim, W.G., Kim, D.W. and Ryu, W.S., 2000, 'Applicability of Monkman-Grant Relationships to Type 316L(N) Stainless Steel,' Transactions of the KSME A, Vol. 24, No. 9, pp. 2326-2333
6 Dobes, F. and Milika, K., 1976, 'The Relation Between Minimum Creep Rate and Time to Fracture,' Metal Science, Vol. 10, pp. 382-384   DOI
7 ASTM standard, 1983, 'Standard Practice for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials,' ASTM E139, pp. 305-314
8 Berns, H. and Krafft, F., 1990, '12%Cr Steels Alloyed with Nitrogen under Pressure and The Influence of A Thermo-mechanical Treatment on Their Mechnical Properties,' Proc. of the Conf. on Rupture Ductility of Creep Resistance Steels, Edited by Strang, A., held at York, pp. 116-124
9 Cadek, J. 1988, Creep in Metallic Materials, Materials Science Monographs, Vol. 48, Elsevier, Amsterdam-Oxfrod-New York-Tokyo, pp. 335-338
10 Fujiwara, M., Uchida, H., Ohta, S., Yuhara, S., Tani, S. and Sato, Y., 1986, 'Development of Modified Type 316 Stainless Steel for Fast Breeder Reactor Fuel Cladding Tubes,' Ridiation-Induced Change in Microstructure 13th Int. Sym. - Part I, ASTM STP 955, pp. 127-145   DOI
11 Kim, W.G., Kim, D.W. and Ryu, W.S., 2001, 'Creep Design of Type 316LN Stainless Steel by K-R Damage Theory,' Vol. 25, No. 2, pp. 296-303   과학기술학회마을
12 Evans, R.W. and Wilshire, B., 1985, Creep of Metals and Alloys, The Institute of Metal, London, pp. 9-12
13 Kim, W.G. and Ryu, W.S., 2000, 'Application of K-R Creep Damage Constitutive Equation to Type 316LN Stainless Steel,' Proc. of Materials and Fracture Part of the KSME-00MF078, Sungkyunkwan University, pp.232-238
14 Ryu, W.S., Kim, W.G., Kim, D.W., Kuk, I.H., Jang, J., Rhee, C.K., Chung, M.G., Park, S.D. and Han, C.H., 1998, 'A State of the Art Report on LMR Structure Materials,' KAERI/AR-487/98, pp. 37-47
15 Kim, W.G., Kim, S.H. and Ryu, W.S., 2001, 'Creep Characterization of Type 316LN Stainless Steel and HT-9 Stainless Steels by the K-R Damage Model,' KSME International Journal, Vol. 15, No. 11, pp. 1463-1471   과학기술학회마을
16 Oh, Y.J. and Hong, J.H., 2000, 'Nitrogen Effect on Precipitation and Sensitization in Cold-Worked Type 316L(N) Stainless Steel,' Journal of Nuclear Materials, Vol. 278, pp. 242-250   DOI   ScienceOn
17 Manfred, E. and Vitale, E., 1984, 'Creep Strength and Hot Tensile Behavior in AISI 316 Austenitic Steels,' Proc. of the 2nd International Conference on Creep and Fracture of Engineering Materials and Structures-Part II, Edited by B. Wilshire and D.R.J. Owen, Pineridge Press, Swansea, U.K., pp. 1239-1249
18 Nabarro, F.R.N. and Villers, H.L., 1995, The Physics of Creep-Creep and Creep-Resistant Alloys, Taylor & Francis Ltd., pp. 22-26