Tensile properties and fracture mechanism of IN-100 superalloy in high temperature range
AbstractTensile properties and fracture mechanism of a polycrystalline IN-100 superalloy have been investigated in the range from room temperature to 900°C. Optical microscopy (OM) and transmission electron microscopy (TEM) applying replica technique were used for microstructural investigation, whereas scanning electron microscopy (SEM) was utilized for fracture study. High temperature tensile tests were carried out in vacuumed chamber. Results show that strength increases up to 700°C, and then sharply decreases with further increase in temperature. Elongation increases very slowly (6-7.5%) till 500°C, then decreases to 4.5% at 900°C. Change in elongation may be ascribed to a change of fracture mechanism. Appearance of a great number of microvoids prevails up to 500°C resulting in a slow increase of elongation, whereas above this temperature elongation decrease is correlated with intergranular crystallographic fracture and fracture of carbides.
G. Bi, C.N. Sun, H.C. Chan, F.L. Ng, C.C. Ma, Mater. Design 60 (2014) 401-408.
A. Jafari, S. M. Abbasi, A. Rahimi, M. Morakabati, M. Seifollahi, Metall. Mater. Eng. 21 (2015) 167-181. LINK
R. Acharya, S. Das, Metall. Mat. Trans. A 46 (2015) 3864-3875.
A.M. Wusatowska-Sarneka. G.B. Olson, M.J. Blackburn, M. Aindow, J. Mater. Res. 7 (2003) 2653-2663.
W.W. Milligan, E.L. Orth, J.J. Schirra, M.F. Savage, Superalloys 2004, Eds. K.A. Green et al., TMS (The Minerals, Metals & Materials Society), Warrendale, Pennsylvania, 2004.
Metals Handbook, 9th Edition, Volume 9, Metallography and Microstructures, Eds. K. Mills et al., ASM (American Society for Metals), Metals Park, Ohio, 1985.
M.T. Jovanović, Metall. Mater. Eng. 22 (2016) 205-220.
J.L. Smialek, Exploratory Study of Oxidation-Resistant Aluminized Slurry Coatings for IN 100 and WI-52 Superalloys, Retrieved April 10, 2017, from https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710015970.pdf
M. Cavacece, P. P. Valentini, L. Vita, Int. J Comput. Appl. T. 28 (2007) 275-280.
N. Ejaz,, I.N. Qureshi,S.A. Rizvi, Eng. Failure Anal. 18 (2011) 1407-1414.
X. Huang, Z. Zhang, Z. Liu, H. Zhuangqi, Metall. Mat. Trans. A 28 (1997) 2143-2147.
The Superallys, Eds. C. Sims, W. Hagel, John Wiley, New York, 1972.
R. Jensen, T. Tien, Met. Trans. A 16 (1985) 1049-1068.
J. King, Mat. Sci. Techn. 3 (1987) 750-764.
P. Hicks, C.J. Altsletter, Met. Trans. A 21 (1990) 365-380.
H.K.D.H. Bhadeshia, Nickel Based Superalloys, Retrieved April 10, 2017, from http://www.msm.cam.ac.uk/phase-trans/2003/Superalloys/superalloys.html
Copyright (c) 2017 Milan T. Jovanović, Đorđe Drobnjak, Ivana Cvijović‐Alagić, Vesna Maksimović
This work is licensed under a Creative Commons Attribution 4.0 International 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 acknowledgement 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 acknowledgement 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.