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http://dx.doi.org/10.12656/jksht.2018.31.5.213

Effect of Hot Forging Ratio and Solution Treatment Temperature on the Mechanical Properties of Incoloy 825 Alloy  

Kim, D.H. (Dept. of Metallurgical Engineering, Pukyong National University)
Park, Y.T. (Dept. of Applied Materials, Korea Polytechnic College VII)
Son, Y.M. (Dept. of Metallurgical Engineering, Pukyong National University)
Kang, C.Y. (Dept. of Metallurgical Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society for Heat Treatment / v.31, no.5, 2018 , pp. 213-219 More about this Journal
Abstract
This study was carried out to investigate the effect of hot forging ratio and solution treatment temperature on the mechanical properties of incoloy 825 alloy. With an increasing of the hot forging ratio, grain size and range of grain size was decreased. With an increasing of the solution treatment temperature after 90% forging, grain size and range of grain size was increased. Cr carbides and Ti nitrides was precipitated at below $900^{\circ}C$ and volume fraction of precipitate was increased with an decreasing of the solution treatment temperature. With an increasing of the hot forging ratio, hardness, tensile strength and elongation, toughness was increased. With an increasing of the solution treatment temperature after 90% forging, hardness and strength was increased, elongation and toughness was decreased by grain refinement. With an increasing of the forging ratio, effect of solution treatment temperature on the hardness, strength and elongation was small, but on the toughness was large.
Keywords
Hot forging ratio; Solution treatment; Impact value; Incoloy 825; Tensile properties; Hardness;
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  • Reference
1 K. D. Kuhn and K. H. Koch : Kerntechnik, 15 (1973) 257.
2 E. Grundy : Mater. Sci. Technol, 3 (1987) 782.   DOI
3 H. Grimmer, D. Grman, N. Iniotakis, and U. Zimmermann : Mater. Sci. Eng, 87 (1987) 189.   DOI
4 P. S. Kim, H. Y. Kim, S. Y. Choi, Y. S. Kim, and J. D. Kim : KOSME, 38 (2014) 698.
5 Y. T. Park, Y. H. Jeong, and C. Y. Kang : J. KSHT, 29 (6) (2016) 259.
6 C. T. Sims, N. S. Stoloff, and W. C. Hagel : John Wiley & Sons Pub, SUPERALLOYS, II (1987) 111.
7 H. Nahm : J. Moteff, Metal Transactions A, 7 (1976) 1473.   DOI
8 M. J. Donachie, Jr. and O. H. Kriege : J. Mater, 7 (1972) 269.
9 C. Y. Kang, S. H. Kim, and Y. T. Park : J. KSPSE, 27(2) (2017) 20.
10 E. W. Ross and C. T. Sims : Ohn Wiley & Sons, Nickel-base Alloys in SUPERALLOYS, II (1987) 120.
11 M. A. Shaikh, M. Iqbal, M. Ahmad, J. I. Akhtar, and K. A. Shoaib : Journal of Materials Science Letter, 11 (1992) 1009.   DOI