Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2016 - zeszyt 4

Investigation of Ni-base coatings after corrosion test

10.15199/28.2016.4.7

nr katalogowy: 100292
10.15199/28.2016.4.7

Inconel 625 and 686 are Ni-Cr-Mo alloys used for its high strength, outstanding corrosion resistance, and excellent fabricability. For this reason, these alloys are typically used as a one of the most important coating material and can be applied to chemical and petrochemical plants, power generation sector, heat exchanger tubing for boilers of waste incinerators. To perform the Ni-base weld overlays, without introducing too much Fe, a new weld technique called Cold Metal Transfer (CMT) was used. This paper presents the mechanisms of high-temperature corrosion, microstructure and chemical composition of boiler elements after the waste incineration form ashes at 650°C from 500 h. Microstructure examinations of the Inconel 625 and Inconel 686 corroded surface were carried out by scanning electron microscopy (SEM) supported by energy dispersive spectroscopy (EDS). The phase compositions of the corroded surfaces were carried out by means of X-ray diffraction. Key words: Inconel 625, Inconel 686, corrosion layer.1. INTRODUCTION Corrosion-resistant Ni-base superalloys like Inconel 625 and Inconel 686 are widely used in several industrial sectors, including petrochemical or power generations, due to their high performance in aggressive environments. The field of their application as the structural materials depends, to a large extent, on the concentrations and the ratios between the contents of their main alloying components, primarily, chromium and molybdenum. Nowadays, Ni-base alloys are typically used to manufacture engineering components, or coatings for protection of cheaper metallic substrates, which should work in extreme conditions including mechanical loads and an aggressive environment at high temperature. Due to the excellent high temperature corrosion resistance and good strength at high temperatures Ni-base alloys can work in aggressive environments [1, 2]. Inconel 625 is a metallic materials, austenitic alloy, showing an extrao[...]

Bibliografia

[1] Stevens C. E., Ross R. W.: Production, fabrication, and performance of alloy 625 clad steel for aggressive corrosive environments. Journal Materials For Energy Systems 8 (1986) 7÷16.
[2] Mrowec S., Weber T.: Nowoczesne materiały żaroodporne. WNT, Warszawa (1968).
[3] Solecka M., Petrzak P., Radziszewska A.: The microstructure of weld overlay Ni-base alloy deposited on carbon steel by CMT method. Solid State Phenomena 231 (2015) 119÷124.
[4] Marketing materials Fronius company: CMT: Cold Metal Transfer-MIG/ MAG dip-transfer arc process.
[5] Barna J. L., Rivers K. B.: Improving recovery boiler furnace reliability with advanced materials and application methods. Canadian Pulp and Paper Association 25-29 (1999) 1÷7.
[6] Young-Ho L., Kim I.-S.: The effect of subsurface deformation on the wear behavior of steam generator tube materials. Wear 253 (2002) 438÷47.
[7] Madsen O. H.: New technologies for waste to energy plants. 4th International Symposium on Waste Treatment Technologies, Sheffield, UK, June 29th÷July 2nd (2003) 1÷12.
[8] Rozmus-Gornikowska M., Cieniek Ł., Blicharski M., Kusinski J.: Microstructure and microsegregation of an Inconel 625 weld overlay produced on steel pipes by the cold metal transfer technique. Archives of Metallurgy and Materials 59 (2014) 1081÷1084.
[9] Pickin C. G., Williams S., Lunt W. M.: Characterization of the cold metal transfer (CMT) process and its application for low dilution cladding. Journal of Materials Processing Technology 211 (2011) 496÷499.
[10] Bruckner J.: CMT Method — revolution in welding technology. Przeglad Spawalnictwa 7-8 (2009) 24÷27.
[11] Kameswari S.: DTA studies on the corrosion behevior of titanium powder in NaCl and Na2SO4. Jurnal of Thermal Analysis 36 (1990) 23÷33.
[12] Chatterjee U. K., Bose S. K., Roy S. K.: Environments degradation of metal. Marcel Dekker, New York (2001).
[13] Mrowec S., Weber T.: Korozja gazowa metali. Wyd. Śląsk, Katowice (1975).
[14] Special Metals Corporation: Inconel and Incoloy are trademarks of the Special Metals Corporation group of companies. Publication Number SMC-063 (2006).
[15] Special Metals Corporation: Inconel, Incoloy, Inco-Weld, Incoflux and 686CPT are trademarks of the Special Metals Corporation group of companies. Publication Number SMC-024 (2005).
[16] Petrzak P., Blicharski M., Dymek S., Solecka M.: Electron microscopy investigation of Inconel 625 weld overlay on boiler steel. Solid State Phenomena 231 (2015) 113÷118.
[17] Kusiński J., Blicharski M., Cieniek Ł., Dymek S., Rozmus-Górnikowska M., Solecka M., Faryj K.: Struktura i właściwości powłok ze stopów Inconel 625 i 686 napawanych metodą CMT na rury i ściany szczelne kotłów energetycznych. Inżynieria Materiałowa 36 (2015) 363÷367.

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