Failure of 17-4PH stainless steel components in offshore platforms

Tavares, Sérgio Souto Maior; Corte, J.S.; Pardal, Juan Manuel

doi:10.1016/b978-0-08-100117-2.00019-4

Cited by 7 publications

(6 citation statements)

References 26 publications

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“…Instead, the difference between the specimens built with WFS = 8m/min and WFS = 9m/min is statistically significant (p-value = 0.0192). The hardness test results using a tandem troch pulse MIG welding with a lowest deposition rate of 4.5kg was seen to be around 398 HV [10]. The results obtained for higher deposition rates are close to the single CMT process from the past study, which at much lower deposition rate achieved a hardness of 340 HV.…”

Section: Hardness Testssupporting

confidence: 76%

“…17-4 PH stainless steel is a precipitate hardened lath martensitic steel widely used in various industries like aerospace, nuclear plant and oil and gas due to the high strength, high toughness and corrosion resistance [10] obtained due to the uniform distribution of fine intermetallic phases or alloying elements such as niobium and copper.…”

Section: Introductionmentioning

confidence: 99%

“…Solution treatment in which it is subjected to both high and low temperature to solubilize the alloy element present and to avoid high growth in the grain size. The aging phenomena can promote the strength but can reduce the toughness of the material [10]. The 17-4 PH stainless steel is a martensitic stainless steel which contains around 3 % Cu and it gains its strength by the precipitation of highly dispersed copper particles in the martensitic matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Aging the 17-4 PH results in precipitation hardening due to the formation of a rich copper precipitates [10].…”

Section: Introductionmentioning

confidence: 99%

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Tandem metal inert gas process for high productivity wire arc additive manufacturing in stainless steel

Martina

Ding

Williams

et al. 2019

Additive Manufacturing

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This study investigates the feasibility of achieving high deposition rate using wire + arc additive manufacturing in stainless steel to reduce lead time and cost of manufacturing. The pulse MIG welding technique with a tandem torch was used for depositing martensitic stainless steel 17-4 PH. The mechanical and metallurgical properties of the manufactured component were analysed to evaluate the limitations and the extent to which the rate of deposition reaches a maximum without any failure or defect being evident in the manufactured component. Deposition rate of 9.5 kg/hr was achieved. The hardness was matched for the as deposited condition.

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Section: Hardness Testssupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Aging the 17-4 PH results in precipitation hardening due to the formation of a rich copper precipitates [10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tandem metal inert gas process for high productivity wire arc additive manufacturing in stainless steel

Martina

Ding

Williams

et al. 2019

Additive Manufacturing

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show abstract

“…It is proven to increase the metal’s corrosion resistance and mechanical strength via precipitation hardening of Cu-rich precipitates. 170 , 171 When it comes to applications requiring thermo-mechanical processing, Cu is an impurity that must be removed as it substantially decreases the resistance to hot rolling and leads to surface hot shortness. 172 This is caused by the preferential oxidation of iron and the resulting formation of Cu-rich regions which are melting during hot working.…”

Section: Greener Reactants and Recycled Feeds In Pyrometallurgymentioning

confidence: 99%

Greener reactants, renewable energies and environmental impact mitigation strategies in pyrometallurgical processes: A review

Harvey

Courchesne

et al. 2022

MRS Energy & Sustainability

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Metals and alloys are among the most technologically important materials for our industrialized societies. They are the most common structural materials used in cars, airplanes and buildings, and constitute the technological core of most electronic devices. They allow the transportation of energy over great distances and are exploited in critical parts of renewable energy technologies. Even though primary metal production industries are mature and operate optimized pyrometallurgical processes, they extensively rely on cheap and abundant carbonaceous reactants (fossil fuels, coke), require high power heating units (which are also typically powered by fossil fuels) to calcine, roast, smelt and refine, and they generate many output streams with high residual energy content. Many unit operations also generate hazardous gaseous species on top of large CO2 emissions which require gas-scrubbing and capture strategies for the future. Therefore, there are still many opportunities to lower the environmental footprint of key pyrometallurgical operations. This paper explores the possibility to use greener reactants such as bio-fuels, bio-char, hydrogen and ammonia in different pyrometallurgical units. It also identifies all recycled streams that are available (such as steel and aluminum scraps, electronic waste and Li-ion batteries) as well as the technological challenges associated with their integration in primary metal processes. A complete discussion about the alternatives to carbon-based reduction is constructed around the use of hydrogen, metallo-reduction as well as inert anode electrometallurgy. The review work is completed with an overview of the different approaches to use renewable energies and valorize residual heat in pyrometallurgical units. Finally, strategies to mitigate environmental impacts of pyrometallurgical operations such as CO2 capture utilization and storage as well as gas scrubbing technologies are detailed. This original review paper brings together for the first time all potential strategies and efforts that could be deployed in the future to decrease the environmental footprint of the pyrometallurgical industry. It is primarily intended to favour collaborative work and establish synergies between academia, the pyrometallurgical industry, decision-makers and equipment providers. Graphical abstract Highlights A more sustainable production of metals using greener reactants, green electricity or carbon capture is possible and sometimes already underway. More investments and pressure are required to hasten change. Discussion Is there enough pressure on the aluminum and steel industries to meet the set climate targets? The greenhouse gas emissions of existing facilities can often be partly mitigated by retrofitting them with green technologies, should we close plants prematurely to build new plants using greener technologies? Since green or renewable resources presently have limited availability, in which sector should we use them to maximize their benefits?

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The effect of low hydrogen content on hydrogen embrittlement of additively manufactured 17–4 stainless steel

Ben-Hamu,

Metalnikov,

Eliezer

2024

Prog Addit Manuf

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This work aims to evaluate the impact of small amounts of hydrogen on the hydrogen-assisted cracking (HAC) of 17-4 martensitic stainless steel (SS) prepared by additive manufacturing (AM). To elucidate the effect of processing on the hydrogen–material interactions, the obtained results were compared with a conventionally manufactured (CM) counterpart. It was found that the hydrogen uptake of AM 17-4 SS is higher compared to CM; however, its resistance to HAC is improved. These differences are attributed to the presence of stronger hydrogen trapping sites, retained austenite and the absence of Nb-rich precipitates in the AM 17-4 SS. The effect of processing on the microstructure and the susceptibility to hydrogen-induced damage and hydrogen embrittlement is discussed in detail.

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Failure of 17-4PH stainless steel components in offshore platforms

Cited by 7 publications

References 26 publications

Tandem metal inert gas process for high productivity wire arc additive manufacturing in stainless steel

Tandem metal inert gas process for high productivity wire arc additive manufacturing in stainless steel

Greener reactants, renewable energies and environmental impact mitigation strategies in pyrometallurgical processes: A review

The effect of low hydrogen content on hydrogen embrittlement of additively manufactured 17–4 stainless steel

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