Abstract
Tensile tests of GH4169 alloy were performed at room temperature. Different fractions, distributions and shapes of δ phase was prepared by aging treated at 880 °C, 930 °C and 980 °C for 5 h or 10 h. The effect of δ phase on the mechanical properties of GH4169 alloy was investigated. The results show that 0.2% yield strength and ultimate tensile strength of GH4169 alloy increase by 61 MPa and 78 MPa respectively when the fraction of δ phase increases from 2.20% to 5.21%. Then, the ultimate tensile strength remains at 1 012 MPa even when the fraction of δ phase reaches 7.56%. The fraction effect of δ phase on the strength improvement of GH4169 alloy is more significant than morphology, and the critical fraction value is 5.21%. In addition, the elongation decreases by 14.1% when the fraction of δ phase increases from 2.20% to 7.56%. Excessive needle or short rod shaped δ phase is responsible for the reduction of elongation.
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References
N. Zhou, D. C. Lv, H. L. Zhang, D. McAllister, F. Zhang, M. J. Mills, Y. Wang, Acta Metall. 65 (2014) 270–286.
L. Zheng, M. C. Zhang, R. Chellali, H. Bouchikhaoui, J. X. Dong, Mater. Sci. Technol. 28 (2013) 122–128.
Y. C. Lin, X. M. Chen, D. X. Wen, M. S. Chen, Comput. Mater. Sci. 83 (2014) 282–289.
L. Zheng, M. C. Zhang, R. Chellali, J. X. Dong, Appl. Surf. Sci. 257 (2011) 9762–9767.
L. Zheng, M. C. Zhang, R. Chellali, J. X. Dong, Mater. Des. 32 (2011) 1981–1986.
Y. Huang, T. G. Langdon, J. Mater. Sci. 42 (2007) 421–427.
M. Sundararaman, P. Mukhopadhyay, S. Banerjee, Metall. Mater. Trans. A 23 (1992) 2015–2028.
X. P. Wei, W. J. Zheng, Z. G. Song, T. Lei, Q. L. Yong, Q. C. **e, J. Iron Steel Res. Int. 21 (2014) 375–381.
Y. Q. Ning, M. W. Fu, X . Chen, Mater. Sci. Eng. A 540 (2012) 164–173.
Y. Wang, W. Z. Shao, L. Zhen, B. Y. Zhang, Mater. Sci. Eng. A 528 (2011) 3218–3227.
G. A. Rao, M. Kumar, M. Srinivas, D. S. Sarma, Mater. Sci. Eng. A 355 (2003) 114–125.
H. Y. Zhang, S. H. Zhang, M. Cheng, Mater. Charact. 61 (2010) 49–53.
H. Y. Zhang, S. H. Zhang, M. Cheng, Z. X. Li, J. Eng. Manuf. 224 (2010) 103–110.
W. C. Liu, F. R. **ao, M. Yao, J. Mater. Sci. 16 (1997) 769–771.
D. Y. Cai, W. C. Liu, R. B. Li, W. H. Zhang, M. Yao, J. Mater. Sci. 39 (2004) 719–721.
W. C. Liu, F. R. **ao, M. Yao, Z. L. Chen, Z. Q. Jiang, S. G. Wang, Scripta Mater. 37 (1997) 59–64.
F. L. Sui, Y. Zuo, X. H. Liu, L. Q. Chen, Appl. Math. Modell. 37 (2013) 8776–8784.
C. Z. Wang, R. B. Li, J. Mater. Sci. 39 (2004) 2593–2595.
W. C. Liu, M. Yao, Z. L. Chen, S. G. Wang, J. Mater. Sci. 34 (1999) 1–4.
X. S. Zhou, Y. B. He, J. H. Liu, S. J. **n, D. Wang, Y. F. Cui, P. Li, Y. Dong, Ordnance Material Science and Engineering 35 (2012) No. 6, 74–77.
H. Y. Zhang, Research on the Control Mechanisms of Microstructure of GH4169 Alloy during the Delta Process and Its Applications, Institute of Metal Research, CAS, Shenyang, 2010.
Y. C. Lin, J. Deng, Y. Q. Jiang, D. X. Wen, G. Liu, Mater. Sci. Eng. A 598 (2014) 251–262.
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Foundation Item: Item Sponsored by the Fund of China State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology (SKLAB02014001)
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Ye, Ny., Cheng, M., Zhang, Sh. et al. Effect of δ phase on mechanical properties of GH4169 alloy at room temperature. J. Iron Steel Res. Int. 22, 752–756 (2015). https://doi.org/10.1016/S1006-706X(15)30068-6
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DOI: https://doi.org/10.1016/S1006-706X(15)30068-6