Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Mariano A. Kappes"'
Autor:
Mariano A. Kappes, Teresa E. Perez
Publikováno v:
Journal of Pipeline Science and Engineering, Vol 3, Iss 4, Pp 100141- (2023)
Blending hydrogen in existing natural gas pipelines compromises steel integrity because it increases fatigue crack growth, promotes subcritical cracking and decreases fracture toughness. In this regard, several laboratories reported that the fracture
Externí odkaz:
https://doaj.org/article/f5cff114c0d546b0808b57836d362377
Autor:
Mariano A. Kappes, Teresa Perez
Publikováno v:
Corrosion Reviews. 41:319-347
Existing natural gas pipelines provide an economic alternative for the transport of hydrogen (H2) in an envisioned hydrogen economy. Hydrogen can dissolve in the steel and cause hydrogen embrittlement (HE), compromising pipeline structural integrity.
Publikováno v:
Corrosion. 78:1067-1078
The double loop-electrochemical potentiokinetic reactivation (DL-EPR) method estimates the degree of sensitization in stainless steels with ir/ia, the ratio of peak current densities during reactivation (reverse) and activation (forward) scans. Beyon
Publikováno v:
Corrosion. 78:931-935
This work describes an inexpensive holder for corrosion experiments, developed to avoid crevice corrosion during pitting corrosion tests of corrosion-resistant alloys. It is based on a flooded gasket, incorporated in a Stern-Makrides sample holder. U
Publikováno v:
International Journal of Hydrogen Energy. 47:3141-3156
Hydrogen permeation experiments were performed in quenched and tempered (Q&T) low alloy steels with varying Ni contents exposed to 1 bar H2 at 30, 50 and 70 °C. From the analysis of build-up and decay transients, it is concluded that the permeation
Publikováno v:
Materials and corrosion-Werkstoffe und Korrosion
In this study, six flexible pipe steel armor wires used in oil and gas transportation are characterized, and their hydrogen diffusion coefficients and hydrogen uptakes are measured using an electrochemical hydrogen permeation technique. The wires hav
Publikováno v:
Corrosion. 76:786-795
Low potential pitting corrosion (LPPC) of Alloys 690 and 800 (UNS N06690 and N08800) was studied in neutral solutions, containing chloride ions from 0.1 M to 1 M and thiosulfate ions from 5 × 10−5 M to 10−3 M. LPPC occurred close to the corrosio
Autor:
Mariano A. Kappes
Publikováno v:
Corrosion Reviews. 38:1-24
Fluorides, bromides, and iodides, despite being less common than chlorides, are present in various environments of industrial relevance. Stainless steels suffer pitting corrosion in solutions of all halides except fluorides, which can be understood c
Publikováno v:
Corrosion Science. 198:110121
Autor:
Raul B. Rebak, Patricia Bozzano, Ricardo M. Carranza, Martín A. Rodríguez, Mariano A. Kappes, Magali E. Gonzalez
Publikováno v:
Corrosion. 74:210-224
Nickel alloy 690 (UNS N06690) is one of the current choices for nuclear power plant steam generator tubing. The severity of certain stress corrosion cracking submodes in Ni-Cr-Fe alloys, such as Alloy 690, may be a function of the alloy sensitization