Response to comment by Mueller et al.

Mathur, Shubhra; Vyas, Rishi; Jain, Rohit; Sachdev, K.; Sharma, Sanjeev

doi:10.1016/j.jnoncrysol.2013.04.068

Cited by 1 publication

(2 citation statements)

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“…Some of these studies include oxidation of Zr-based bulk metallic glasses containing Ti [55][56]. Oxidation of several Zr-based amorphous alloys and of Ti 60 Ni 40 in different structural states (amorphous and nanocrystalline) has extensively been investigated in the author's laboratory [11][12][13]104,105]. The results of these investigations again point to the fact that fine grained nanocrystalline alloys exhibit better oxidation resistance than their amorphous or coarse grained crystalline forms.…”

Section: (B) Oxidation Studiesmentioning

confidence: 99%

“…The oxidation behavior of Ti-based alloys is illustrated by mentioning below the results of the investigations carried out on amorphous and nanocrystalline Ti 60 Ni 40 in the author's laboratory [104,105]. Some typical plots representing the mass gain per unit area (g/cm 2 ) versus logarithmic of oxidation time [log t (min)] in the temperature range 280 0 C-380 0 C for the amorphous and nanocrystalline states of the alloy Ti 60 Ni 40 are shown in Fig.…”

Section: (B) Oxidation Studiesmentioning

confidence: 99%

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Corrosion and Oxidation Behavior of Ti-Based Amorphous and Nanocrystalline Alloys

Sharma

2011

SSP

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Amorphous alloys, in general, exhibit superior mechanical and chemical properties as compared to their crystalline counterparts, which is attributed to their chemical homogeneity and to the absence of crystal-like structural defects. Nanocrystalline and fully crystallized forms of these alloys can be easily obtained by a suitable thermal annealing treatment. It is important to have the knowledge of corrosion/oxidation behavior of amorphous and nanocrystalline alloys for various possible applications. In contrast to many investigations on corrosion and oxidation behavior of amorphous alloys reported in the literature, only limited studies have been carried out on comparison of corrosion/oxidation behavior of amorphous and nanocrystalline states of the same alloy. With this motivation potentiodynamic polarization studies were carried out on amorphous and nanocrystalline states of the alloy Ti60Ni40 in several aqueous media at room temperature. The oxidation in air was also investigated in the temperature range 2800C-3800C using a thermogravimetric analyzer. It was found from these investigations that nanocrystalline state exhibits the maximum corrosion/oxidation resistance in comparison to amorphous and crystalline states. The better corrosion/oxidation resistance of nanocrystalline state can be explained in terms of the nature of the nanocrystalline phase/phases and the size of the crystallites. The results of the present study are supported by other similar studies reported in the literature. A short review on comparison of corrosion/oxidation behaviour of amorphous and nanocrystalline Ti-based alloy is also presented in the paper.

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