Some aspects of electron beam welded and laser welded ferritic Fe-22Cr-3Mo-5Ni-0.3Ru alloy

Tjong, S.C.; Ku, J. S.; Ho, New-Jin

doi:10.1007/bf00356813

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Alloying with a small amount of platinum group elements, such as Pt, Rh and Ru, has been found to improve the corrosion resistance and mechanical properties of Fe-based alloys. [2,3] Furthermore, some recent studies have shown that up to a few percent of these platinum group atoms, such as Ru, are ferromagnetically coupled with the surrounding magnetic atoms and thus suppress the moment dilution. For example, Reddy et al [4] studied the effect of different impurities in FeCo alloys and showed that the Ru atoms in FeCo alloy prefer to occupy Fe sites, being coupled ferromagnetically with the surrounding Co atoms and carrying as high a magnetic moment as the Co atoms.…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of FeCoRu Alloy

Huang¹,

Bonhote

Lam

et al. 2007

ECS Trans.

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The electrodeposition of FeCoRu alloys was studied with rotating disk electrode, surface pH measurements and galvanotstatic plating in a paddle cell. The Ru deposition does not occur until a potential of -0.9 V versus MSE is reached, much higher than the literature reversible potential. In the FeCoRu system, the presence of Ru inhibits the Fe plating rate but exerts no effect on the Co. Surface pH measurements further confirmed the high potential for Ru deposition and a significant hydrogen evolution reaction was observed causing enhanced local agitation at the electrode surface. The effect of complexing agent was also studied for FeCoRu plating. The presence of citrate, tartrate or histidine, were all found to decrease the current efficiency at the conditions of study. While the decrease observed in the citrate and tartrate cases was probably due to the buffering effect, which increases the hydrogen evolution current, histidine was believed to complex with metal cations and to inhibit the metal deposition.

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Section: Introductionmentioning

confidence: 99%

Electrodeposition of FeCoRu Alloy

Huang¹,

Bonhote

Lam

et al. 2007

ECS Trans.

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Properties of electron beam welded SAF 2205 duplex stainless steel

Tjong

1997

Journal of Materials Processing Technology

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The effect of addition of Ru to Fe on the electronic structure and magnetic properties

Kobayashi¹,

Ando²,

Kai³

et al. 1995

J. Phys.: Condens. Matter

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Band structure calculations based on the Korringa-Kohn-Rostoker coherent-potential approximation method are used to study the electronic structure and magnetic properties of BCC FeRu alloys within a Ru concentration of 20 at.%, although it is experimentally known that FeRu alloys include the FCC and HCP structures beyond a 5 at.% Ru concentration. The results show that the ruthenium is ferromagnetic in alpha -Fe with a moment of about 0.5mu B and that the ruthenium addition to alpha -Fe enhances the magnetic moment at Fe sites by about 0.02mu B/Ru at.% because of the magnetovolume effect and large spin splitting by Ru addition. The density of states calculated in the paramagnetic state shows that the strong d-d hybridization between Fe and Ru causes the spin splitting of Ru. The BCC structure is important in the process of Ru becoming ferromagnetic. We have clarified the reason why the average magnetic moment of the FeRu BCC alloy scarcely decreases with the Ru addition.

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Some aspects of electron beam welded and laser welded ferritic Fe-22Cr-3Mo-5Ni-0.3Ru alloy

Cited by 3 publications

References 20 publications

Electrodeposition of FeCoRu Alloy

Electrodeposition of FeCoRu Alloy

Properties of electron beam welded SAF 2205 duplex stainless steel

The effect of addition of Ru to Fe on the electronic structure and magnetic properties

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