Effect of Zirconium Addition on High-Temperature Cyclic Oxidation of Diffusion Chromo-Aluminized Ni-Base Superalloy

Elhelaly, M. A.; El-Zomor, Mohamed A.; Ahmed, Mohamed Hussien; Youssef, A.M.

doi:10.1007/s11085-018-9871-4

Cited by 8 publications

(7 citation statements)

References 38 publications

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“…Furthermore, β-NiAl coatings were effective in enhancing the high-temperature oxidation resistance up to 1100 • C of Rene 108DS [16] and CMSX-4 [17]. It has been reported that the NiAl coatings doped with zirconia [18][19][20] and hafnium [21] also reduce the oxidation rate of nickel-based superalloys since the addition of these elements leads to the formation of stable oxides, inhibiting aluminum depletion. Other significant studies report that a functional NiCoCrAlY coating improves the hot-corrosion resistance of Inconel 738L exposed to air for 100 h at 700 • C [22].…”

Section: Pack Cementation (Pc) and Above The Pack/vapor-phase Alumini...mentioning

confidence: 99%

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Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Kopec

2024

Coatings

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Thermal barrier coatings (TBCs) are widely used to improve the oxidation resistance and high-temperature performance of nickel-based superalloys operating in aggressive environments. Among the TBCs, aluminide coatings (ACs) are commonly utilized to protect the structural parts of jet engines against high-temperature oxidation and corrosion. They can be deposited by different techniques, including pack cementation (PC), slurry aluminizing or chemical vapor deposition (CVD). Although the mentioned deposition techniques have been known for years, the constant developments in materials sciences and processing stimulates progress in terms of ACs. Therefore, this review paper aims to summarize recent advances in the AC field that have been reported between 2019 and 2023. The review focuses on recent advances involving improved corrosion resistance in salty environments as well as against high temperatures ranging between 1000 °C and 1200 °C under both continuous isothermal high-temperature exposure for up to 1000 h and cyclic oxidation resulting from AC application. Additionally, the beneficial effects of enhanced mechanical properties, including hardness, fatigue performance and wear, are discussed.

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Section: Pack Cementation (Pc) and Above The Pack/vapor-phase Alumini...mentioning

confidence: 99%

“…It could be noticed that PC methods are mainly used to deposit pure NiAl or β-NiAl coatings [6,7,[12][13][14][15][16][17]23,24]. Some reports analyze the addition of different oxides [8,9] and Zr [18][19][20].…”

Section: Summary and Future Perspectivesmentioning

confidence: 99%

Recent Advances in the Deposition of Aluminide Coatings on Nickel-Based Superalloys: A Synthetic Review (2019–2023)

Kopec

2024

Coatings

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“…Unsur unsur tersebut biasanya ditambahkan pada paduan logam dalam jumlah prosentasi yang kecil dengan tujuan untuk memperbaiki ketahanan oksidasi paduan logam pada temperatur tinggi. Penelitian sebelumnya menunjukkan bahwa penambahan zirkonium pada pelapisan Cr-Al dapat meningkatkan ketahanan siklik oksidasi pada temperatur 1000 °C paduan logam berbasis Ni superalloy Nimonic 75 [8]. Penambahan logam unsur tanah jarang Re pada paduan logam NiAl juga dapat meningkatkan ketahan patah dan oksidasi pada temperatur 1000 °C [9].…”

Section: Pendahuluanunclassified

Ketahanan Oksidasi Zirkaloy-4 yang Dipadu dengan Yttrium Pada Suhu Tinggi

Immanuel

Ambardi²,

Prajitno³

2019

urania

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KETAHANAN OKSIDASI ZIRCALOY-4 YANG DIPADU DENGAN YTTRIUM PADA TEMPERATUR TINGGI. Yttrium merupakan salah satu logam unsur tanah jarang yang digunakan untuk memperbaiki sifat logam. Penelitian ini dilakukan untuk mengetahui pengaruh penambahan Yttrium terhadap ketahanan oksidasi paduan zirkonium-4 pada temperatur tinggi dengan menggunakan metode oksidasi isothermal pada temperatur 900 °C dan 1000 °C. Penelitian ini dilakukan dengan tiga (3) variasi konsentrasi yttrium yaitu 0 % berat, 0,5 % berat dan 1 % berat dan sebagai pemadu pada zircaloy-4 (Zr, Sn, Fe, dan Cr). Proses oksidasi isotermal dilakukan pada temperatur 900 °C dan 1000 °C dengan waktu pemanasan 9 jam terhadap sampel as cast di dalam tungku tabung. Sampel zircaloy-4 yang telah dioksidasi kemudian dilakukan pengujian meliputi metalografi, kekerasan, X-Ray Difraction (XRD) dan pengukuran ketebalan oksida. Hasil pengujian menunjukkan bahwa kandungan variasi yttrium tidak mempengaruhi nilai kekerasan yang berarti. Semakin besar kandungan yttrium yang ditambahkan mengakibatkan nilai kekerasan semakin menurun, namun penambahan unsur yttrium dapat mempengaruhi ketahanan oksidasi pada temperatur tinggi yang ditunjukkan oleh perubahan grafik ketebalan oksida serta morfologi permukaan oksidasi dari setiap sampel yang dianalisis.Kata Kunci : zircaloy-4, oksidasi isotermal, variasi yttrium.

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“…TRD has the advantage that it can deposit homogenous and dense layers that can be applied to steels and alloys containing carbon that has percentages higher than 0.3 wt.% [10]. TRD is usually used to produce diffusion carbide coatings via one of three methods, pack cementation [11][12][13], fluidized bed [14][15][16], or molten salt bath [17][18][19][20][21] method (used in this paper).…”

Section: Introductionmentioning

confidence: 99%