Microstructure and Mechanical Properties of Duplex Stainless steel for Anchor Bolt Application
Most buildings have been using anchor bolts
commonly for installing outdoor advertising structures. Anchor bolts
of common carbon steel are widely used and often installed
indiscriminately by inadequate installation standards. In the area
where strong winds frequently blow, falling accidents of outdoor
advertising structures can occur and cause a serious disaster, which is
very dangerous and to be prevented. In this regard, the development of
high-performance anchor bolts is urgently required. In the present
study, 25Cr-8Ni-1.5Si-1Mn-0.4C alloy was produced by traditional
vacuum induction melting (VIM) for the application of anchor bolt.
The alloy composition is revealed as a duplex microstructure from
thermodynamic phase analysis by FactSage® and confirmed by
metallographic experiment. Addition of Nitrogen to the alloy was
found to reduce the ferritic phase domain and significantly increase the
hardness and the tensile strength. Microstructure observation revealed
mixed structure of austenite and ferrite with fine carbide distributed
along the grain and phase boundaries.
[1] C.-M. Bae, W. J. Nam, C. S. Lee, Effect of microstructural features on
ductility in hypo-eutectoid steels, Scripta Materialia, 41(6), 1999, pp. 605-610
[2] R. C. Newman, and T. Shahrabi, Corrosion Science, 27(8), 1987, pp. 827-838
[3] J. I. Bae, S. T. Kim, T. H. Lee, H. Y. Ha, S. J. Kim and Y. H. Park, High
Temperature Precipitation Behavior of High-Nitrogen Duplex Stainless Steel, Kor. J. Met. Mater. 2011, Vol. 49, No. 2, p. 93-94
[4] T. H. Lee, C. S. Oh, C. G. Lee, S. J. Kim and S. Takaki, On the Crystallographic Features of Cr2N Precipitates in High-Nitrogen Behavior of the Second Phases during Isothermal Aging at 900¶ÇÇü, J. Kor. Inst. Met. & Mater. 2004, Vol. 42, No. 11, p.845
[5] T. Ogawa, S. Aoki, T. Sakamoto, and T. Zaizen, Welding Journal, 61(5),
1982,pp. 139-148
[6] Y. C. Lu, R. Bandy, C. R. Clayton, R. C. Newman, J. Electrochem. Soc.,
130, 1983, p. 1774
[7] M. Ceylan, V. Kuzucu, M. Aksoy, I. Aksoy, M. Kaplan and M.M. Yildirim, Investigation of the casting microstructure of a Fe-base,
Cr-Ni-Mo duplex alloy, Journal of Materials Processing Technology 69 (1997) p.238-246
[8] S. K. Kim, J. W. Kim, S. D. Shim and Y. Y. Lee, Solidification and
╬┤-ferrite Formation of High Alloyed Austenitic Stainless Steel, J. of the Kor. Inst. Met. & Mater. (1996) Vol. 34, No. 12, p.1576
[9] J. Charles, B. Bonnefois, Proc. Weldability of New Ferritic and Stainless
Steels, Cambridge, TWI, 1990.
[1] C.-M. Bae, W. J. Nam, C. S. Lee, Effect of microstructural features on
ductility in hypo-eutectoid steels, Scripta Materialia, 41(6), 1999, pp. 605-610
[2] R. C. Newman, and T. Shahrabi, Corrosion Science, 27(8), 1987, pp. 827-838
[3] J. I. Bae, S. T. Kim, T. H. Lee, H. Y. Ha, S. J. Kim and Y. H. Park, High
Temperature Precipitation Behavior of High-Nitrogen Duplex Stainless Steel, Kor. J. Met. Mater. 2011, Vol. 49, No. 2, p. 93-94
[4] T. H. Lee, C. S. Oh, C. G. Lee, S. J. Kim and S. Takaki, On the Crystallographic Features of Cr2N Precipitates in High-Nitrogen Behavior of the Second Phases during Isothermal Aging at 900¶ÇÇü, J. Kor. Inst. Met. & Mater. 2004, Vol. 42, No. 11, p.845
[5] T. Ogawa, S. Aoki, T. Sakamoto, and T. Zaizen, Welding Journal, 61(5),
1982,pp. 139-148
[6] Y. C. Lu, R. Bandy, C. R. Clayton, R. C. Newman, J. Electrochem. Soc.,
130, 1983, p. 1774
[7] M. Ceylan, V. Kuzucu, M. Aksoy, I. Aksoy, M. Kaplan and M.M. Yildirim, Investigation of the casting microstructure of a Fe-base,
Cr-Ni-Mo duplex alloy, Journal of Materials Processing Technology 69 (1997) p.238-246
[8] S. K. Kim, J. W. Kim, S. D. Shim and Y. Y. Lee, Solidification and
╬┤-ferrite Formation of High Alloyed Austenitic Stainless Steel, J. of the Kor. Inst. Met. & Mater. (1996) Vol. 34, No. 12, p.1576
[9] J. Charles, B. Bonnefois, Proc. Weldability of New Ferritic and Stainless
Steels, Cambridge, TWI, 1990.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:57837", author = "Gil Hwan Na and Woo Young Jung and Tae Kwon Ha", title = "Microstructure and Mechanical Properties of Duplex Stainless steel for Anchor Bolt Application", abstract = "Most buildings have been using anchor bolts
commonly for installing outdoor advertising structures. Anchor bolts
of common carbon steel are widely used and often installed
indiscriminately by inadequate installation standards. In the area
where strong winds frequently blow, falling accidents of outdoor
advertising structures can occur and cause a serious disaster, which is
very dangerous and to be prevented. In this regard, the development of
high-performance anchor bolts is urgently required. In the present
study, 25Cr-8Ni-1.5Si-1Mn-0.4C alloy was produced by traditional
vacuum induction melting (VIM) for the application of anchor bolt.
The alloy composition is revealed as a duplex microstructure from
thermodynamic phase analysis by FactSage® and confirmed by
metallographic experiment. Addition of Nitrogen to the alloy was
found to reduce the ferritic phase domain and significantly increase the
hardness and the tensile strength. Microstructure observation revealed
mixed structure of austenite and ferrite with fine carbide distributed
along the grain and phase boundaries.", keywords = "Anchor bolt, Duplex stainless steel, FactSage®,
Hardness, Thermodynamic phase analysis.", volume = "6", number = "10", pages = "942-4", }