Microstructure and improved corrosion properties of TP347H stainless steel via vacuum cladding high-entropy alloy coating DOI
Changsheng Zhai, Fang Xie, Xi Zhang

и другие.

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, Год журнала: 2024, Номер 43(1)

Опубликована: Дек. 5, 2024

Developing advanced materials for high-temperature components in supercritical coal-fired boilers is essential ensuring their longevity and safety. In this study, NiMoFeCoCrSiB high-entropy alloy (HEA) coatings were vacuum-cladded on the surface of TP347H steel. The result shows that HEA coating composed an FCC (Bauhinia equiaxed crystal) + σ eutectic phase. exhibited strong metallurgical bonding with substrate. Thermodynamic parameters (ΔHmix = −10.28 kJ/mol, ΔSmix 15.07 J/(mol K), δ 8.46%, Ω 2.19) supported phase formation. a 0.5 mol/l H2SO4 solution, compared TP347H, HEACs showed greater arc resistance, lower Icorror (4.8 μA/cm2), higher Ecorror (121.7 mV), whose impedance modulus |Z| (2070.29 W cm2) was 3.38 times former. average rate corrosion steel 81.2 55% solution. severe fast heterogeneous corrosion, while uniform corrosion. improved resistance can be attributed to comprehensive effect both passivation film phases. This study offers valuable insights developing ultra-supercritical boiler tubes.

Язык: Английский

Recent developments in CoCrFeNi-based high entropy alloy coatings: design, synthesis, and properties DOI
Fengling Zhang, Xiaohong Chen, He Liu

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179193 - 179193

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

2
Experimental investigations into milling characteristics of CoCrFeNiMn high-entropy alloy assisted by low-temperature regulation DOI
Yin Liu,

Zhenshan Luo,

Haosheng Dong

и другие.

Journal of the Brazilian Society of Mechanical Sciences and Engineering, Год журнала: 2025, Номер 47(7)

Опубликована: Май 29, 2025

Язык: Английский

Процитировано

0
Microstructure and improved corrosion properties of TP347H stainless steel via vacuum cladding high-entropy alloy coating DOI
Changsheng Zhai, Fang Xie, Xi Zhang

и другие.

Journal of Vacuum Science & Technology A Vacuum Surfaces and Films, Год журнала: 2024, Номер 43(1)

Опубликована: Дек. 5, 2024

Developing advanced materials for high-temperature components in supercritical coal-fired boilers is essential ensuring their longevity and safety. In this study, NiMoFeCoCrSiB high-entropy alloy (HEA) coatings were vacuum-cladded on the surface of TP347H steel. The result shows that HEA coating composed an FCC (Bauhinia equiaxed crystal) + σ eutectic phase. exhibited strong metallurgical bonding with substrate. Thermodynamic parameters (ΔHmix = −10.28 kJ/mol, ΔSmix 15.07 J/(mol K), δ 8.46%, Ω 2.19) supported phase formation. a 0.5 mol/l H2SO4 solution, compared TP347H, HEACs showed greater arc resistance, lower Icorror (4.8 μA/cm2), higher Ecorror (121.7 mV), whose impedance modulus |Z| (2070.29 W cm2) was 3.38 times former. average rate corrosion steel 81.2 55% solution. severe fast heterogeneous corrosion, while uniform corrosion. improved resistance can be attributed to comprehensive effect both passivation film phases. This study offers valuable insights developing ultra-supercritical boiler tubes.

Язык: Английский

Процитировано

1