A Basic Study for the Production of Co-based and Fe-based Superalloy Blades

A Basic Study for the Production of Co-based and Fe-based Superalloy Blades

© 2022 by IJETT Journal
Volume-70 Issue-2
Year of Publication : 2022
Authors : Jei Pil Wang
DOI :  10.14445/22315381/IJETT-V70I2P214

How to Cite?

Jei Pil Wang, "A Basic Study for the Production of Co-based and Fe-based Superalloy Blades," International Journal of Engineering Trends and Technology, vol. 70, no. 3, pp. 126-131, 2022. Crossref, https://doi.org/10.14445/22315381/IJETT-V70I2P214

In this study, a Co-based superalloy in which about 16~17wt.% of W was added and a high C-high Cr-based Fe-based superalloy that is similar to white cast iron was each designed with alloy composites, shot blasting machine blades were produced as standard size products by precision casting, and a field test was carried out on the products in the as-cast state. The goal of this study was to satisfy the key evaluation indicators (Blade replacement cycle of 1344 hours or more and hardness of HRC58 or more). However, due to nonconformities in alloy design, casting method, post-casting heat treatment, etc., brittleness of both Co-based and Fe-based blade castings increased, and most of them could not withstand the impact of the shot ball and failed the field test. The failure factors and field test results according to the development performance of the Co-based and Fe-based superalloy blades were summarized and organized, respectively.

Blade, Co-based Superalloy, Fe-based Superalloy, Precision Casting.

[1] Hyun-Jung Lee, Behavior of the segregate and solidification structure according to the solidification speed of the super heat-resisting FSX-414 Co-based alloy, M.S. Thesis, Changwon National University, (2008) 12.
[2] Joon-hong Kim, Melting and casting and high-temperature mechanical properties of a Co-18.5%Cr-15%W-10%Ni alloy, M.S. Thesis, Yeungnam University, (2008).
[3] Hyun-jeong Lee et al., Behavior of the solidification structure and carbide formation in a super heat-resisting Co-based alloy, Journal of the Korean Society for Precision Engineering, 26(2) (2009) 16~20.
[4] Byung-ho Jeong et al., Effect of aging treatment on the microstructure and hardness of the stellite 12 alloy overlaid deposit according to the PTA method, Park Yong Journal of Mechanical Engineering, 26(1) (2002) 68-75.
[5] Baek-gyu Choi et al., Super heat-resisting alloys and their application components, Trends in Metals & Materials Engineering, 24(2) (2011) 4-9.
[6] In-bae Kim, Heat treatment of superheat resisting alloys, Journal of the Korean Society for Heat Treatment, 3(3) (1990) 37-42.
[7] E.F. Badly, Superalloy, A technical guide, ASM, (1988).
[8] www.deloro.com, Deloro wear solutions components, Alloy characteristics