Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Jim Stian Olsen"'
Publikováno v:
Metals, Vol 10, Iss 11, p 1451 (2020)
In this study, the effect of precipitates on the surface mechanical properties in the presence of hydrogen (H) is investigated by in situ electrochemical nanoindentation. The nickel superalloy 718 is subjected to three different heat treatments, lead
Externí odkaz:
https://doaj.org/article/e2a191f362744d6695e758150085a9fb
Publikováno v:
Corrosion Science. 142:45-55
In this work, a spinodal Copper alloy – C72900, was tested to investigate the resistance against environmentally assisted degradation. The material was tested according to ISO 15156-3 Level V in sour H2S solution and to cathodic polarization in sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e590fd32d82a1019ba1cf051d891803c
https://doi.org/10.1016/j.corsci.2018.06.031
https://doi.org/10.1016/j.corsci.2018.06.031
Publikováno v:
Engineering Failure Analysis. 89:74-87
The two different precipitation hardened nickel alloys, Alloy 718 and Alloy 725, were tested in its as received condition. Their susceptibility to hydrogen stress cracking was examined by the use of stepwise increasing load testing. The mechanical pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b9a644611189d3c84c3e675549dfb2
https://doi.org/10.1016/j.engfailanal.2018.02.023
https://doi.org/10.1016/j.engfailanal.2018.02.023
Publikováno v:
International Journal of Hydrogen Energy. 43:10104-10128
Experimentally, it has been shown that hydrogen can either enhance the internal necking failure or induce internal shearing failure of microvoids. In this study, the numerical investigation of hydrogen-microvoid interactions under the framework of hy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad44c2d79a3ed7ea183e7980214e2489
https://doi.org/10.1016/j.ijhydene.2018.04.064
https://doi.org/10.1016/j.ijhydene.2018.04.064
Publikováno v:
International Journal of Hydrogen Energy. 43:6765-6776
Due to its high strength and acceptable corrosion resistance, Alloy 718 is a viable material for the use in subsea applications. The alloy's susceptibility to hydrogen embrittlement is however limiting its viability. In this work the effect of micros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b68b3ca977e9ef278df3cc5980414b
https://doi.org/10.1016/j.ijhydene.2018.02.088
https://doi.org/10.1016/j.ijhydene.2018.02.088
Publikováno v:
Engineering Failure Analysis. 81:79-93
The size and misorientation effects on hydrogen embrittlement of a four grain nickel aggregate are studied with the help of hydrogen informed cohesive zone model. The grain misorientation angle is parameterized by fixing the lower grains while rotati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bc65ea87c2376251e25546583b0f56d
https://doi.org/10.1016/j.engfailanal.2017.07.027
https://doi.org/10.1016/j.engfailanal.2017.07.027
Publikováno v:
International Journal of Hydrogen Energy. 42:15933-15942
In situ electrochemical nanoindentation has been used to study the effect of hydrogen on the nanomechanical response of Alloy 718. Observations show that hardness increase as a result of hydrogen charging. Also, the hydrogen charging gives a reduced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::881711b66ffbce476dddca90439c1825
https://doi.org/10.1016/j.ijhydene.2017.04.290
https://doi.org/10.1016/j.ijhydene.2017.04.290
Publikováno v:
2415–2429
The International Journal of Advanced Manufacturing Technology
The International Journal of Advanced Manufacturing Technology
Residual stress in additive manufacturing (AM) is one of the key challenges in terms of structural integrity and the finish quality of printed components. Estimating the distribution of residual stresses in additively manufactured components is compl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab496ff633d2e8a6847da9649f3a25ac
http://urn.fi/urn:nbn:fi-fe202101181999
http://urn.fi/urn:nbn:fi-fe202101181999
Publikováno v:
Engineering Fracture Mechanics. 166:23-42
The convergence problem during the cohesive zone modeling of hydrogen embrittlement in constant displacement scenario is attributed to the numerical instability which is studied analytically in the present work. The property of numerical stability is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b653eeb75f5d2ae593984ac70643f3b
https://doi.org/10.1016/j.engfracmech.2016.08.019
https://doi.org/10.1016/j.engfracmech.2016.08.019
Publikováno v:
Engineering Fracture Mechanics. 157:56-71
The degrading effect of hydrogen on high strength steels is well recognized. The hydrogen degradation is dependent not only on hydrogen content, but also on geometric constraints or equivalently, level of stress triaxiality, which means the hydrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53bbb99621e2eb69b5a062469ef335b3
https://doi.org/10.1016/j.engfracmech.2016.02.001
https://doi.org/10.1016/j.engfracmech.2016.02.001