Zobrazeno 1 - 10
of 149
pro vyhledávání: '"John Hald"'
Publikováno v:
Heliyon, Vol 10, Iss 11, Pp e31995- (2024)
The corrosion behavior of alloy Ni 201 in molten sodium hydroxide (NaOH) at 600 °C was investigated at varying basicity levels of the molten NaOH. The ability for Ni 201 to form passivating oxides was investigated after immersion tests varying from
Externí odkaz:
https://doaj.org/article/c33ea961814d4698aa791210768e426a
Publikováno v:
Metals, Vol 12, Iss 1, p 3 (2021)
This paper presents the results of an experimental investigation of a 12% Cr steel where a significant increase in Charpy impact toughness and a slight decrease in ductile-brittle transition temperature (DBTT) from 70 °C to 65 °C were obtained thro
Externí odkaz:
https://doaj.org/article/081dee3b3cb64b069db32908fb666dde
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d1569d1c11a14c8e55f96892113453
https://doi.org/10.2139/ssrn.4160331
https://doi.org/10.2139/ssrn.4160331
Publikováno v:
Materials Characterization. 194:112413
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::226b7e0cf4a8a5f611a4a497c40abefd
https://doi.org/10.1016/j.matchar.2022.112413
https://doi.org/10.1016/j.matchar.2022.112413
Autor:
Yohanes Chekol Malede, Kristian Vinter Dahl, John Hald, Melanie Montgomery, Flemming Bjerg Grumsen
Publikováno v:
Journal of Materials Science. 54:13787-13809
The effect of ageing of AISI 347H FG austenitic steel on KCl-induced corrosion was investigated by comparing the corrosion attack on tube material previously service-exposed for 100000 h and that on an as-received tube. Cr-rich σ-phase precipitates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2c81082bc8435b74ba5570b5130405f
https://doi.org/10.1007/s10853-019-03863-4
https://doi.org/10.1007/s10853-019-03863-4
Autor:
Torbjörn Jonsson, John Hald, Julien Phother Simon, Kristian Vinter Dahl, Yohanes Chekol Malede, Melanie Montgomery
Publikováno v:
Materials and Corrosion. 70:1486-1506
Ni–(35–45)Cr–4Nb alloys containing different fractions of α-Cr were exposed to potassium chloride (KCl)-induced corrosion. The corrosion exposures were carried out for 168 hr at 600°C in a 15% (vol/vol) H2O (g) + 5% (vol/vol) O2 (g) + N2 (g;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dc18549f310bbd6d3e4393ce3af6314
https://doi.org/10.1002/maco.201810658
https://doi.org/10.1002/maco.201810658
Publikováno v:
Microscopy and Microanalysis. 25:462-469
Small additions of boron can remarkably improve the long-term creep resistance of 9–12% Cr steels. The improvement has been attributed to boron segregation to grain boundaries during quenching, and subsequent boron incorporation into certain famili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e2925d363749acb9792e92f05570be9
https://doi.org/10.1017/s1431927618015726
https://doi.org/10.1017/s1431927618015726
Publikováno v:
Niessen, F, Gazder, A A, Hald, J & Somers, M A J 2021, ' Multiscale in-situ studies of strain-induced martensite formation in inter-critically annealed extra-low-carbon martensitic stainless steel ', Acta Materialia, vol. 220, 117339 . https://doi.org/10.1016/j.actamat.2021.117339
An extra low carbon martensitic stainless steel with 16% ultrafine grained metastable reverted austenite was subjected to uniaxial tensile testing and investigated with in-situ energy-dispersive synchrotron X-ray diffraction (XRD) and in-situ electro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c72eed09a1826d641ec3e08f988cb256
https://orbit.dtu.dk/en/publications/c3fb455b-4084-4f33-9fc7-1102c20b173c
https://orbit.dtu.dk/en/publications/c3fb455b-4084-4f33-9fc7-1102c20b173c
Publikováno v:
Niessen, F, Apel, D, Danoix, F, Hald, J & Somers, M A J 2020, ' Evolution of substructure in low-interstitial martensitic stainless steel during tempering ', Materials Characterization, vol. 167, 110494 . https://doi.org/10.1016/j.matchar.2020.110494
Materials Characterization
Materials Characterization, Elsevier, 2020, 167, pp.110494. ⟨10.1016/j.matchar.2020.110494⟩
Materials Characterization, 2020, 167, pp.110494. ⟨10.1016/j.matchar.2020.110494⟩
Materials Characterization
Materials Characterization, Elsevier, 2020, 167, pp.110494. ⟨10.1016/j.matchar.2020.110494⟩
Materials Characterization, 2020, 167, pp.110494. ⟨10.1016/j.matchar.2020.110494⟩
The evolution of the substructure and the distribution of interstitial elements in lath martensite during tempering in soft martensitic stainless steel X4CrNiMo16-5-1 was studied with line profile analysis of diffractograms from energy dispersive syn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca722e6c6c24094700d7dbcdf47eb305
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102307
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=102307
Autor:
Thomas Christiansen, John Hald, Flemming Bjerg Grumsen, M. Montgomery, Kristian Vinter Dahl, D.L. Wu
Publikováno v:
Wu, D L, Dahl, K V, Grumsen, F B, Christiansen, T L, Montgomery, M & Hald, J 2020, ' Breakdown mechanism of γ-Al 2 O 3 on Ni 2 Al 3 coatings exposed in a biomass fired power plant ', Corrosion Science, vol. 170, 108583 . https://doi.org/10.1016/j.corsci.2020.108583
A Ni2Al3 coated tube was exposed in a wood firing power plant for 7100 h. The exposure resulted in protective behaviour in most areas, while corrosion attack occurred in local areas. In areas exhibiting protective behaviour, a 30−50 nm thick γ-Al2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bc226144c94c2d1b075a6bbe199d9ed
https://orbit.dtu.dk/en/publications/41b9471e-a810-4714-942e-82375da241cf
https://orbit.dtu.dk/en/publications/41b9471e-a810-4714-942e-82375da241cf