The influence of manganese on the High‐temperature oxidation of iron‐chromium alloys

Stott, F.H.; Wei, Feng; Enahoro, C. A.

doi:10.1002/maco.19890400403

Cited by 108 publications

(47 citation statements)

References 31 publications

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“…Cr 2 O 3 has a corundum structure, which consists of an hcp array of oxygen with two-thirds of the octahedral sites occupied by the metal [26][27][28]. µm.…”

Section: Microstructures Of the Cr-rich Oxide Scalementioning

confidence: 99%

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

et al. 2016

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L. (2016). Influence of Cr-Rich oxide scale on sliding wear mechanism of ferritic stainless steel at high temperature. Tribology Letters, 63 (2), 1-13.Influence of Cr-Rich oxide scale on sliding wear mechanism of ferritic stainless steel at high temperature AbstractThe tribological tests of a ferritic stainless steel (FSS) 445 in contact with high-speed steel (HSS) were performed on a high-temperature pin-on-disc tribometer. Wear exhibited significant difference when the FSS 445 was oxidised with a Cr-rich oxide scale on the surface. The HSS pin displayed adhesive wear when there was no oxide scale on the stainless steel disc, and in the early stages, the coefficient of friction fluctuated significantly, but the level of wear changed as Cr2O3 particles formed. The wear was then reduced, and the coefficient of friction remained stable. The Cr-rich oxide scale which formed on the stainless steel was able to stabilise the coefficient of friction, to reduce the wear rate and to help form a glazed layer on the HSS surface. The abrasive wear of the HSS pin took place at 850 °C, indicating that the hardness of the Cr-rich oxide scale increased as the temperature decreased. AbstractThe tribological tests of a ferritic stainless steel (FSS) 445 in contact with high speed steel (HSS)were performed on a high temperature pin-on-disc tribometer. Wear exhibited significant difference when the FSS 445 was oxidised with a Cr-rich oxide scale on the surface. The HSS pin displayed adhesive wear when there was no oxide scale on the stainless steel disc and in the early stages, the coefficient of friction fluctuated significantly but the level of wear changed as Cr 2 O 3 particles formed. The wear was then reduced and the coefficient of friction remained stable. The Cr-rich oxide scale which formed on the stainless steel was able to stabilize the coefficient of friction, to reduce the wear rate and to help form a glazed layer on the HSS surface. The abrasive wear of the HSS pin took place at 850 °C, indicating that the hardness of the Cr-rich oxide scale increased as the temperature decreased.

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“…Cr 2 O 3 has a corundum structure, which consists of an hcp array of oxygen with two-thirds of the octahedral sites occupied by the metal [26][27][28]. µm.…”

Section: Microstructures Of the Cr-rich Oxide Scalementioning

confidence: 99%

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

et al. 2016

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“…Based on the results it can be suggested that the formation of larger voids underneath the oxide scale in Ti rich Ni-based alloys is invoked not only by process described by researchers [13,14,1415] but can be enhanced further by oxygen vacancies existing in the TiO 2 phase that formed here, however, for analytical instruments used in this study it was unreachable.…”

Section: Voids Formationmentioning

confidence: 72%

“…Another mechanism for voids formation have been described by Stott at al. [14], and Juana at al. [15] suggesting that the phenomena is related strictly to the breaking mechanism of the oxide scale in pure steam at 700°C.…”

Section: Voids Formationmentioning

confidence: 94%

“…Scale failure at high temperatures is also caused due to relatively rapid rates of diffusion of manganese across the Cr and O scale and the formation of a Mn-Cr spinel on its outer surface The scale consists of a layer of Cr 2 O 3 , containing a small concentration of manganese, with an outer layer of the spinel oxide. During the early stages, an inner layer of the spinel also develops, but, eventually, this almost completely disappears as the manganese diffuses into the outer scale according to work describe by Stott et al [14].…”

Section: Voids Formationmentioning

confidence: 94%

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Steam Oxidation Resistance of Advanced Steels and Ni-Based Alloys at 700 °C for 1000 h

Dudziak¹,

Jura²,

Polkowska³

et al. 2017

Oxid Met

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The aim of the work was to investigate corrosion resistance of highly alloyed steels and Ni-based alloys in a steam atmosphere for 1000 h at 700°C. In these steam oxidation experiments, two solid solution strengthened alloys; Haynes Ò 230 Ò , 617 alloy, two gamma-prime (c 0 ) strengthened alloys; 263 and Haynes Ò 282 Ò and three Cr?Ni-rich stainless steels: 309S, 310S and HR3C austenitic steels were exposed. The study showed that the materials exposed commonly developed thin oxide scales; in Ni-based alloys, these consisted of mainly MnCr 2 O 4 spinels and Cr 2 O 3 , with the exception of 617 alloy where NiCr 2 O 4 spinels and Cr 2 O 3 were found. In Fe-based alloys, Cr 2 O 3 , MnCr 2 O 4 spinels, Fe,Mn(SiO) 4 , and finally Fe 3 O 4 developed. No evaporation of chromia has been found within 1000 h test period. Furthermore, the development of TiO 2 was not observed into a large extent in Haynes Ò 282 Ò and 263 alloy, in contrast to the study performed at 800°C under the same steam environment conditions.

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“…Este resultado mostra que a liga estudada possui baixa resistência à oxidação em 800°C quando comparada com os dados reportados na literatura para o comumente utilizado 304 oxidado na mesma temperatura por até 100 h (cerca de 0,23 mg/cm 2 ) (ISSARTEL et al, 2004). Entretanto, deve ser mencionado que o aço 304 possui elevado teor de Cr e baixo teor de Mn que são elementos que influenciam significativamente na resistência à oxidação em elevada temperatura (STOTT, et al, 1989). A Figura 3 (b) mostra o quadrado do ganho de massa da liga estudada, onde é possível observar um incremento linear com o tempo de oxidação, indicando que o comportamento de oxidação dos materiais estudados obedece à lei parabólica.…”

Section: Resultsunclassified

CARACTERIZAÇÃO DO COMPORTAMENTO DE OXIDAÇÃO DE UMA LIGA INOXIDÁVEL Fe-Mn-Si-Cr-Ni-Co COM EFEITO DE MEMÓRIA DE FORMA EM ELEVADA TEMPERATURA

Arana

Silva

Rovere

2017

JCEC

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The influence of manganese on the High‐temperature oxidation of iron‐chromium alloys

Cited by 108 publications

References 31 publications

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

Influence of Cr-Rich Oxide Scale on Sliding Wear Mechanism of Ferritic Stainless Steel at High Temperature

Steam Oxidation Resistance of Advanced Steels and Ni-Based Alloys at 700 °C for 1000 h

CARACTERIZAÇÃO DO COMPORTAMENTO DE OXIDAÇÃO DE UMA LIGA INOXIDÁVEL Fe-Mn-Si-Cr-Ni-Co COM EFEITO DE MEMÓRIA DE FORMA EM ELEVADA TEMPERATURA

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