The Effect of Boron and Zirconium on Microstructure and Stress-Rupture Life of Nickel-based Superalloy ATI 718Plus
DOI:
https://doi.org/10.63278/mme.v21i4.72Keywords:
boron, zirconium, 718Plus alloy, microstructure, Stress-rupture life.Abstract
The effects of boron and zirconium on the microstructure, hardness and stressrupture life of the nickel-based superalloy ATI 718Plus were investigated in this study. Four alloys with different percentages of boron (0.005-0.01 wt.%) and zirconium (0-0.1 wt%) were cast through a vacuum induction melting furnace and then were rolled. The microstructural studies indicated an increased percentage of δ phase, carbide precipitates and twins in the presence of zirconium. The percentage of carbide (boron carbide) precipitates was increased and the solidification range of the alloy was decreased in the presence of boron in the composition. Furthermore, the results obtained from the hardness and stress-rupture tests showed the significant role of both elements in increasing hardness and improved rupture life of the alloy. The maximum rupture life was observed in the alloy which contained the highest percentages of boron and zirconium in its composition. This can be attributed mainly to the increased percentage of δ phase on grain boundaries and their enhanced high-temperature strength.
References
M.C. Kushan, S.C. Uzgur, Y. Uzunonat, F. Diltemiz, Recent advances in aircraft technology. InTech, Rijeka (Croatia) (2012) 75-96.
R.E. Schafrik, D.D. Ward, J.R. Groh, Superalloys 718, 625, 706 and various derivatives (2001) 1-11.
R. Kennedy, Superalloys 718 (2005) 625-706.
W. Cao, R. Kennedy, Superalloys 2004 (2004) 91-99.
X. Xie, C. Xu, G. Wang, J. Dong, W. Cao, R. Kennedy, Metals & Materials Society (2005) 193-202.
O. Adegoke, Degree Project in Metal Forming and. Surface Technology (2012).
R.F. Decker, J.W. Freeman, NACA TN 4286, (1957).
W. Pennington, Metal Progr. 73 (1958) 82-86.
K. Antony, J. Radavich, Proceedings of The Third International Symposium, Claitor Publishing, (1976) 137-146.
Y. Zhu, S. Zhang, T. Zhang, L. Lou, Y. Tong, X. Ning, Z. Hu, X. Xie, Superalloys 718, 625, 706 and various derivatives (1994) 89-98.
N. Li, W. Sun, Y. Xu, S. Guo, D. Lu, Z. Hu, Materials Letters 60 (2006) 2232-35.
D. Heydari, A.S. Fard, A. Bakhshi, J.-M. Drezet, Journal of Materials Processing Technology 214 (2014) 681-87.
L. Yamin, L. Hongjun, L. Jie, W. Zhipeng, H. Yuan, Research & Development 9 (2012) 6-10.
T. Fedorova, J. Rösler, B. Gehrmann, J. Klöwer, Superalloy 718 and Derivatives (2010) 836-46.
T. Alam, P.J. Felfer, M. Chaturvedi, L.T. Stephenson, M.R. Kilburn, J.M. Cairney, Metallurgical and Materials Transactions A 43 (2012) 2183-91.
Z.-j. MIAO, A.-d. SHAN, Y.-b. WU, J. LU, Y. HU, J.-l. LIU, H.-w. SONG, Transactions of Nonferrous Metals Society of China 22 (2012) 318-23.
J. Andersson, G. Sjöberg, J. Larsson, Superalloy 718 and Derivatives (2010) 439-54.
W.-D. Cao, Sixth International Special Emphasis Symposium on Superalloys 718, 625, 706 and Derivatives, 2005, p. 165.
Z. Simona, J. DOBROVSKÃ, B. SMETANA, M. Å¢ALUDOVÃ, Metal 2011 (2011).
A. Mitchell, A. Schmalz, C. Schvezov, S. Cockroft, Superalloys 718, 625 and various derivatives (1994) 65-78.
H.-E. Huang, C.-H. Koo, Materials Transactions 45 (2004) 554-61.
D. Lin, Y. Gu, J. Guo, MRS Proceedings. Cambridge Univ Press, 1994, p. 885.
L. Xiao, M.C. Chaturvedi, D. Chen, Journal of materials engineering and performance 14 (2005) 528-38.
E. Ross, C.T. Sims, C.T. Sims, N. Stoloff, W. Hagel, Superalloys II. Wiley, New York, 1987.
W. Wang, Reverse engineering: Technology of reinvention, CRC Press, 2010.
Downloads
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their published articles online (e.g., in institutional repositories or on their website, social networks like ResearchGate or Academia), as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
Except where otherwise noted, the content on this site is licensed under a Creative Commons Attribution 4.0 International License.
According to the 