Enhanced corrosion resistance of titanium foil from nickel, nickel–molybdenum and palladium surface alloying by high intensity pulsed plasmas

Bonilla, F.A.; Ong, Tek Sing; Skeldon, P.; Thompson, G.E.; Piekoşzewski, J.; Chmielewski, A.G.; Sartowska, B.; Stanisławski, J.

doi:10.1016/s0010-938x(02)00125-7

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…Surface-alloying of titanium with nickel, nickel-molybdenum or palladium by high intensity pulsed plasma beams results in improvement in the corrosion resistance of titanium foil in 0.1 M H 2 SO 4 solution at 80 °C by about two orders of magnitude [9]. Plasma surface niobium alloying process was applied to Ti-6Al-4V alloy, the results of immersion tests shows that corrosion resistance of the niobium modified alloy was improved remarkably in H 2 SO 4 solution, showing [10].…”

Section: Research Developmentmentioning

confidence: 99%

Progress in Surface Corrosion-Resistance Coatings of Titanium and its Alloys

Han

Chen

2013

KEM

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Titanium and its alloys are widely used in the fields of chemistry, aerospace, biomedicine, automobile manufacturing, ship industry, and so on, due to the properties of light weight, high strength, high thermal stability and corrosion resistance. However, the shortcomings of Titanium and its alloys are prominent as well, such as unsatisfactory corrosion resistance in reducing acid, insufficient wear resistance and serious oxidation at high temperature. Surface modification can solve the problems effectively. In this paper, the recent researches of some surface modification techniques such as plasma spraying, surface alloying, magnetron sputtering and vacuum depositing to improve the corrosion resistant of titanium and its alloys are summarized. The characteristics of structures and properties of the coatings are introduced. And the future prospect of further investigations is presented.

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Section: Research Developmentmentioning

confidence: 99%

Progress in Surface Corrosion-Resistance Coatings of Titanium and its Alloys

Han

Chen

2013

KEM

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“…Sedriks et al [16] studied the electrochemical behavior of titanium and Ti-Ni alloys in acid NaCl solution at ambient temperature and boiling point, finding that introduction of Ti 2 Ni intermetallic compounds enhanced corrosion resistance of titanium by increasing the efficiency of the cathodic process. Bonilla et al [17] improved corrosion resistance of titanium in 0.1 M H2SO4 at 80 • C via surface alloying with Ni, Ni-Mo, or Pd. Wang et al [18] compared the corrosion behavior of Ti-0.3Mo-0.8Ni, Ti-0.2Pd, and pure titanium in 25 • C fluoride-containing sulfuric acids.…”

Section: Introductionmentioning

confidence: 99%

Effects of Heat Treatment on Microstructures and Properties of Cold Rolled Ti-0.3Ni Sheets as Bipolar Plates for PEMFC

Hong

Wang

Meng

et al. 2022

Metals

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As promising materials for bipolar plates substrate, as-cold rolled Ti-0.3Ni (wt.%) sheets were heat treated with three different processes in this work. As-cold rolled sheets consist of α matrix and dispersed Ti2Ni intermetallic precipitates, and typical Widmanstatten microstructure can be observed after heat treatment. Lamellar Ti2Ni precipitates inside the colonies. Elongation of as-cold rolled sheets equals less than 7% while this value rises up to around 20%, and tensile strength decreases by more than 47% after heat treatment. Open circuit potentials of as-cold rolled sheets treated at 950 °C for 1 h followed by wind cooling (950 °C/1 h/WC), sheets aged at 500 °C for 3 h followed by air cooling (950 °C/1 h/WC + 500 °C/3 h/AC), and sheets treated at 950 °C for 1 h followed by furnace cooling (950 °C/1 h/FC) equals −0.536 V, −0.476 V, −0.486 V, −0.518 V, respectively. A potentiodynamic polarization test reveals that all of the specimens exhibit typical active–passive transition behavior. Sheets treated at 950 °C/1 h/WC possess the lowest corrosion current density (155.4 μA·cm−2). Results of electrochemical impedance spectroscopy (EIS) show that 950 °C/1 h/WC treated sheets possess the largest polarization resistance (Rpol), 122.6 Ω·cm2. Moreover, steady-state current densities (Iss) increase in the order of 950 °C/1 h/WC, 950 °C/1 h/WC + 500 °C/3 h/AC, 950 °C/1 h/FC according to the results of potentiostatic polarization. This can be attributed to various amounts of Ti2Ni precipitation caused by different cooling rates.

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“…In spite of TiAl-alloy has specific ability of corrosion resistance, but in some special medium such as reducibility acid [2] , it will be susceptible corroded. At present there are many ways to improve its corrosion resistance, such as ion implantation [3] , high energy plasma pulses [4] , alloying by laser [5] . Based on the earlier research, this article analyzes the microstructure of TiAl-alloy layer which processed by niobsing or plasma niobising and carburization.…”

Section: Introductionmentioning

confidence: 99%

Study of TiAl Alloy Surface Plasma Modified Corrosion Resistance

Wang

Yuan

Liu

2010

AMR

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Effects of Nb surface alloying and Nb-C duplex treatment alloying on corrosion behavior of TiAl in particular medium by constant potential of the three electrochemical corrosion properties, respectively, compared with the experimental base after alloying of corrosion resistance. Experimental results show that the corrosion resistance of the niobizing alloyed layer and the plasma carburized layer are increased in 3.5% NaCl,5.8% HCl,in 8.8% H2SO4 solution.

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Enhanced corrosion resistance of titanium foil from nickel, nickel–molybdenum and palladium surface alloying by high intensity pulsed plasmas

Cited by 13 publications

References 17 publications

Progress in Surface Corrosion-Resistance Coatings of Titanium and its Alloys

Progress in Surface Corrosion-Resistance Coatings of Titanium and its Alloys

Effects of Heat Treatment on Microstructures and Properties of Cold Rolled Ti-0.3Ni Sheets as Bipolar Plates for PEMFC

Study of TiAl Alloy Surface Plasma Modified Corrosion Resistance

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