Evaluation of High-Temperature Oxidation Behavior of Inconel 600 and Hastelloy C-22

Hashim, Ammar Abdulkareem; Hammood, Ali Sabea; Hammadi, Nawal J.

doi:10.1007/s13369-015-1766-y

Cited by 11 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, peaks of polycrystalline oxides are present even in the tapes having undergone just cold rolling or cold rolling plus heat treatment in vacuum, indicating that an oxide layer is always present and is composed by randomly oriented oxides, namely Cr 2 O 3 but also complex oxides, such as spinel NiCr 2 O 4 . The formation of complex spinel oxides was already reported in literature [33,36], and it could be ascribed to a layered structure of the oxide layer.…”

Section: The Substratesmentioning

confidence: 65%

“…Mehta et al [32], in their study about the evolution of crystallographic texture and anisotropy during cold rolling of Hastelloy, showed that a strong component of deformation by twinning is common in this alloy. Moreover, the information about the controlled oxidation of Hastelloy are limited: Hashim et al [33] studied the oxidation of HASTELLOY ® C22 and of Inconel, showing that such alloys have a good tendency to develop a uniform chromium oxide coating, although a smaller amount of spinel oxides were also observed for samples heat treated at higher temperature.…”

Section: The Hastelloy Substratementioning

confidence: 99%

See 1 more Smart Citation

The role of texturing and thickness of oxide buffer layers in the superconducting properties of Fe(Se,Te) Coated Conductors

Sylva¹,

Bernini²,

Celentano³

et al. 2020

Supercond. Sci. Technol.

View full text Add to dashboard Cite

In this paper the roles of texturing and thickness of different buffer layers employed in the fabrication of Fe(Se,Te) coated conductors are studied. Fe(Se,Te) thin films were deposited either on rolling assisted biaxially textured substrates substrates with highly textured CeO2 buffer layer and on HASTELLOY® C276 substrates with a randomly oriented native oxide grown through different oxidizing processes. It was found that the buffer layer has to be both thick enough to block Ni interdiffusion from the metallic tape to the Fe(Se,Te) overlayer, and textured enough to ensure good in-plane alignment of the superconducting film, and consequently good critical current densities (Jc). The best results in terms of critical temperature (Tc) and critical current were obtained using a highly textured 350 nm thick CeO2 buffer layer, but a fairly good Jc of 1.2 104 A cm−2 in self field at 5 K was also obtained using an HASTELLOY® C276 substrate with a 400 nm thick randomly oriented native oxide. The obtained results indicate that the superconducting properties of the Fe(Se,Te) coated conductors are determined by a trade-off between degree of texturing of the substrate and inhibition of Nickel interdiffusion.

show abstract

Section: The Substratesmentioning

confidence: 65%

Section: The Hastelloy Substratementioning

confidence: 99%