Correlation between the Hydrogen Absorption Properties and the Vanadium Concentration of Ti-V-Cr Based Alloys

Skryabina, N. E.; Fruchart, D.; Medvedeva, N. A.; Rango, Patricia de; Mironova, Anastasiya A.

doi:10.4028/www.scientific.net/ssp.257.165

Cited by 8 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to check this assumption, systematic SEM investigations were performed and in part already discussed in [9]. It can be underlined that for the ternary (TiCr 1.8 ) 100-x V x alloys the SEM images appear homogeneous, but the distribution of elements exhibits peculiarities depending on the composition.…”

Section: Structurementioning

confidence: 99%

Formation of microstructures in Ti-Cr-V alloys with high hydrogen sorption capacity

Skryabina¹,

Fruchart²,

Medvedeva³

et al. 2016

Chem. Met. Alloys

Self Cite

View full text Add to dashboard Cite

TiVCr alloys known for their potentially large hydrogen uptake were formulated as (TiCr 1.8) 100-x V x in order to quantify the impact of the vanadium concentration. Parallel to this series of pure ternaries, a second one was synthesized with 4 mol.% of Zr 7 Ni 10 addition. Structural investigation and electrochemical charging with hydrogen revealed a fair dependence of the hydrogen uptake and hydride stability on the vanadium content, but conversely different due to the presence of the Zr-Ni additive.

show abstract

Section: Structurementioning

confidence: 99%

Formation of microstructures in Ti-Cr-V alloys with high hydrogen sorption capacity

Skryabina¹,

Fruchart²,

Medvedeva³

et al. 2016

Chem. Met. Alloys

Self Cite

View full text Add to dashboard Cite

show abstract

“…Alloying Ti–V–Cr alloys with Zr [ 14 , 15 , 16 ] or Zr 7 Ni 10 [ 17 , 18 ] results in improvement of the activation and kinetics of absorption. This improvement has been explained by the appearance of a secondary phase, which acts as a gateway for hydrogen to reach the main phase.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of First Hydrogenation of Ti1V0.9Cr1.1 BCC Alloy by Cold Rolling and Ball Milling

2020

View full text Add to dashboard Cite

In this study, we evaluated the effects of a mechanical treatment by cold rolling (CR) and ball milling (BM) on the first hydrogenation of Ti1V0.9Cr1.1 alloy. The as-cast alloy has a body-centered cubic (BCC) crystal structure, and the first hydrogenation at room temperature under 20 bars of hydrogen is practically impossible. However, the samples mechanically activated by CR or BM readily absorbed hydrogen. The sample cold-rolled for one pass exhibited faster kinetics than the sample ball-milled for five minutes, but both samples reached the same storage capacity of 3.6 wt % hydrogen. Increasing the amount of rolling or the milling time decreased the hydrogen capacity. CR is considered the best and most efficient method for the activation of Ti1V0.9Cr1.1 alloy.

show abstract

“…Different approaches have been taken to overcome this drawback. These include heat treatment [12], addition of Zr 7 Ni 10 [12][13][14][15][16], or Zr [17,18] and by element substitution [19,20]. Another approach was made by Edalati K. et al [21] who used high-pressure torsion to induce microstructural modification and so enhancing hydrogen storage properties of Ti-V BCC alloys.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

Sleiman

Huot

2017

Inorganics

View full text Add to dashboard Cite

Abstract:The effect of adding Zr on microstructure and hydrogen storage properties of BCC Ti 1 V 0.9 Cr 1.1 synthesized by arc melting was studied. The microstructures of samples with Zr were multiphase with a main BCC phase and secondary Laves phases C15 and C14. The abundance of secondary phases increased with increasing amount of zirconium. We found that addition of Zr greatly enhanced the first hydrogenation kinetics. The addition of 4 wt % of Zr produced fast kinetics and high hydrogen storage capacity. Addition of higher amount of Zr had for effect of decreasing the hydrogen capacity. The reduction in hydrogen capacity might be due to the increased secondary phase abundance. The effect of air exposure was also studied. It was found that, for the sample with 12 wt % of Zr, exposure to the air resulted in appearance of an incubation time in the first hydrogenation and a slight reduction of hydrogen capacity.

show abstract

Correlation between the Hydrogen Absorption Properties and the Vanadium Concentration of Ti-V-Cr Based Alloys

Cited by 8 publications

References 11 publications

Formation of microstructures in Ti-Cr-V alloys with high hydrogen sorption capacity

Formation of microstructures in Ti-Cr-V alloys with high hydrogen sorption capacity

Enhancement of First Hydrogenation of Ti1V0.9Cr1.1 BCC Alloy by Cold Rolling and Ball Milling

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

Contact Info

Product

Resources

About