Insight into the hot corrosion behavior of GH4251 high-temperature superalloy fabricated by selective laser melting

Lv, Yuting; Ouyang, Xing; Tian, Ying; Yu, Hongyao; Wei, Guijiang

doi:10.1016/j.jallcom.2024.175166

Journal of Alloys and Compounds

2024

DOI: 10.1016/j.jallcom.2024.175166

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Insight into the hot corrosion behavior of GH4251 high-temperature superalloy fabricated by selective laser melting

Yuting Lv,

Xing Ouyang,

Ying Tian

et al.

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Cited by 3 publications

References 43 publications

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Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

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Wen,

Huang

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Journal of Alloys and Compounds

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Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

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Wen,

Huang

et al. 2025

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High temperature corrosion of wrought and wire arc additively manufactured 316L stainless steel in a simulated boiler environment

Mannan,

Jang

2024

Journal of Materials Research and Technology

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Hot corrosion behavior of selective laser melted TiC/GT D222 nickel-based composite in 75% Na₂SO₄ and 25% K₂SO₄ molten salt medium at 900°C

Lv,

Ouyang,

Liu

et al. 2024

ACMM

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Purpose This paper aims to investigate the differences in hot corrosion behavior of the GTD222 superalloy and TiC/GTD222 composite in a mixed salt of 75% Na2SO4 and 25% K2SO4 at 900°C. Design/methodology/approach The GTD222 superalloy and TiC/GTD222 nickel-based composite were prepared using selective laser melting (SLM). Subsequently, the hot corrosion behavior of the two alloys was systematically investigated in a salt mixture consisting of 75% Na2SO4 and 25% K2SO4 (Wt.%) at 900°C. Findings The TiC/GTD222 composite exhibited better hot corrosion resistance compared to the GTD222 superalloy. First, the addition of alloying elements led to the formation of a protective oxide film on the TiC/GTD222 composites 20 h before hot corrosion. Second, TiC/GTD222 composite corrosion surface has a higher Ti content, after 100 h of hot corrosion, the composite corrosion surface Ti content of 10.8% is more than two times the GTD222 alloy 4% Ti. The Ti and Cr oxides are tightly bonded, effectively resisting the erosion of corrosive elements. Originality/value The hot corrosion behavior of GTD222 superalloy and TiC/GTD222 composites prepared by SLM in a mixed salt of 75% Na2SO4 and 25% K2SO4 was studied for the first time. This study provides insights into the design of high-temperature alloys resistant to hot corrosion.

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Insight into the hot corrosion behavior of GH4251 high-temperature superalloy fabricated by selective laser melting

Cited by 3 publications

References 43 publications

Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

High temperature corrosion of wrought and wire arc additively manufactured 316L stainless steel in a simulated boiler environment

Hot corrosion behavior of selective laser melted TiC/GT D222 nickel-based composite in 75% Na₂SO₄ and 25% K₂SO₄ molten salt medium at 900°C

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Insight into the hot corrosion behavior of GH4251 high-temperature superalloy fabricated by selective laser melting

Cited by 3 publications

References 43 publications

Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

Achieving simultaneous control of second phase and grain structure in directed energy deposited Inconel 718 alloy: insights from heat treatment

High temperature corrosion of wrought and wire arc additively manufactured 316L stainless steel in a simulated boiler environment

Hot corrosion behavior of selective laser melted TiC/GT D222 nickel-based composite in 75% Na2SO4 and 25% K2SO4 molten salt medium at 900°C

Contact Info

Product

Resources

About

Hot corrosion behavior of selective laser melted TiC/GT D222 nickel-based composite in 75% Na₂SO₄ and 25% K₂SO₄ molten salt medium at 900°C