Search Results - "Knowles, Alexander J."

A nickel based superalloy reinforced by both Ni3Al and Ni3V ordered-fcc precipitates by J Knowles, Alexander, Reynolds, Lucy, A Vorontsov, Vassili, Dye, David

“…A nickel based superalloy has been designed where the fcc γ Ni matrix is reinforced by two different ordered-fcc intermetallic compounds, γ′ L12 Ni3Al and γ′′…”
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Laves phase intermetallic matrix composite in situ toughened by ductile precipitates by Knowles, Alexander J, Bhowmik, Ayan, Purkayastha, Surajit, Jones, Nicholas G, Giuliani, Finn, Clegg, William J, Dye, David, Stone, Howard J

“…Laves phase based materials are of interest for elevated temperature applications for their high melting points and strengths but are critically limited by…”
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Effect of ageing on the microstructural evolution in a new design of maraging steels with carbon by Gong, Peng, Wynne, Bradley P, Knowles, Alexander J, Turk, Andrej, Ma, Le, Galindo-Nava, Enrique I, Rainforth, W Mark

“…A new maraging steel, based on carbide precipitation, is described. Two alloys were designed namely Fe-10Mn-0.25C-2Cr-1Mo wt% (2CrMo) and Fe-10Mn-0.25C-1Cr-2Mo…”
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Data on a Laves phase intermetallic matrix composite in situ toughened by ductile precipitates by Knowles, Alexander J., Bhowmik, Ayan, Purkayastha, Surajit, Jones, Nicholas G., Giuliani, Finn, Clegg, William J., Dye, David, Stone, Howard J.

“…The data presented in this article are related to the research article entitled “Laves phase intermetallic matrix composite in situ toughened by ductile…”
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Data on a new beta titanium alloy system reinforced with superlattice intermetallic precipitates by Knowles, Alexander J., Jun, Tea-Sung, Bhowmik, Ayan, Jones, Nicholas G., Britton, T. Ben, Giuliani, Finn, Stone, Howard J., Dye, David

“…The data presented in this article are related to the research article entitled “a new beta titanium alloy system reinforced with superlattice intermetallic…”
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A new beta titanium alloy system reinforced with superlattice intermetallic precipitates by Knowles, Alexander J, Jun, Tea-Sung, Bhowmik, Ayan, Jones, Nicholas G, Britton, T Ben, Giuliani, Finn, Stone, Howard J, Dye, David

“…Titanium alloys traditionally lack a nm-scale intermetallic precipitate that can be exploited for age-hardening from solid solution. Here such a strengthening…”
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Investigation of microstructure and mechanical property evolution in a novel low-cost Ni-free maraging steel based on Mn and C through cold rolling followed by aging by Gong, Peng, Kwok, T.W.J., Knowles, Alexander J., Xiao, Bin, Du, Jinlong, Galindo-Nava, Enrique I., Rainforth, W. Mark

“…In this work, we investigate the microstructures and mechanical properties evolution on a novel carbon-based maraging steel with the compositions of…”
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Tungsten-based bcc-superalloys by Knowles, Alexander J, Dye, David, Dodds, Russel J, Watson, Andy, Hardie, Christopher D, Humphry-Baker, Samuel A

“…•First demonstration of a Tungsten-based bcc-superalloy concept comprising a bcc beta-W matrix reinforced by beta’ TiFe intermetallic phase.•W-Ti-Fe ternary…”
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Pt accelerated coarsening of A15 precipitates in Cr-Si alloys by Ulrich, Anke S., Knowles, Alexander J., Cantatore, Valentina, Bhowmik, Ayan, Wharmby, Michael T., Geers, Christine, Panas, Itai, Galetz, Mathias C.

“…[Display omitted] •Pt enhances coarsening of A15 precipitates in Cr-rich Cr-Si-alloys.•A ternary Cr-rich Cr-Si-Pt phase diagram at 1200°C is proposed.•Pt…”
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The Kinetics of Primary Alpha Plate Growth in Titanium Alloys by Ackerman, Abigail K., Knowles, Alexander J., Gardner, Hazel M., Németh, André A. N., Bantounas, Ioannis, Radecka, Anna, Moody, Michael P., Bagot, Paul A. J., Reed, Roger C., Rugg, David, Dye, David

“…The kinetics of primary α -Ti colony/Widmanstätten plate growth from the β are examined in Ti-6246, comparing a simple quasi-analytic model to experiment. The…”
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Spinodally reinforced W-Cr fusion armour by Knowles, Alexander J, Cheung, Tat Yiu Spencer, Ma, Kan, Dodds, Russel, Humphry-Baker, Samuel A, Morgado, Felipe F., Katnagallu, Shyam S, Saiz, Eduardo, Gault, Baptiste, Hardie, Christopher D, Dye, David

“…•Novel two-phase reinforced W-Cr alloy investigated, with nano-scale lamellae W(Cr) and Cr(W) 200–600 nm formed heterogeneously from grain boundaries,…”
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Deformation mechanisms in a metastable beta titanium twinning induced plasticity alloy with high yield strength and high strain hardening rate by Gao, Junheng, Huang, Yuhe, Guan, Dikai, Knowles, Alexander J., Ma, Le, Dye, David, Rainforth, W. Mark

“…Metastable β titanium alloys with both twinning (TWIP) and martensite transformation (TRIP) usually exhibit a low yield strength of between 200 and 500 MPa,…”
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ω phase strengthened 1.2GPa metastable β titanium alloy with high ductility by Gao, Junheng, Knowles, Alexander J., Guan, Dikai, Rainforth, W. Mark

“…This paper provides a novel approach for exploiting ω phase strengthening in a metastable β titanium alloy while retaining high ductility. The addition of…”
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Nanocrystalline Y2O3-modified metal matrix composite coatings with improved resistance to thermocyclic oxidation and V2O5-induced type II hot corrosion by Grimme, Christoph, Ma, Kan, Kupec, Robin, Oskay, Ceyhun, White, Emma M.H., Knowles, Alexander J., Galetz, Mathias C.

“…Incorporating reactive elements (RE) into turbine coatings is a well-established surface treatment. However, suboptimal RE concentrations can lead to…”
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Development of Ni-free Mn-stabilised maraging steels using Fe2SiTi precipitates by Knowles, Alexander J., Gong, Peng, Rahman, Khandaker M., Rainforth, W. Mark, Dye, David, Galindo-Nava, Enrique I.

“…Computational alloy design has been used to develop a new maraging steel system with low cost, using Mn for austenite reversion and Heusler Fe2SiTi nm-scale…”
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Tungsten-based bcc-superalloys: Thermal stability and ageing behaviour by Parkes, Neal, Dodds, Russel, Watson, Andy, Dye, David, Hardie, Chris, Humphry-Baker, Samuel A., Knowles, Alexander J.

“…Tungsten is considered as a primary material for the divertor and first wall in many fusion reactor designs. There has been further interest in nano-structured…”
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Chromium-based bcc-superalloys strengthened by iron supplements by Ma, Kan, Blackburn, Thomas, Magnussen, Johan P., Kerbstadt, Michael, Ferreirós, Pedro A., Pinomaa, Tatu, Hofer, Christina, Hopkinson, David G., Day, Sarah J., Bagot, Paul A.J., Moody, Michael P., Galetz, Mathias C., Knowles, Alexander J.

“…Chromium alloys are being considered for next-generation concentrated solar power applications operating > 800 °C. Cr offers advantages in melting point, cost,…”
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Rapid electron backscatter diffraction mapping: Painting by numbers by Tong, Vivian S., Knowles, Alexander J., Dye, David, Britton, T. Ben

“…Microstructure characterisation has been greatly enhanced through the use of electron backscatter diffraction (EBSD), where rich maps are generated through…”
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A candidate fusion engineering material, WC-FeCr by Humphry-Baker, Samuel A., Harrison, Robert W., Greaves, Graeme, Knowles, Alexander J., Smith, George D.W., Donnelly, Stephen E., Lee, William E.

“…A new candidate fusion engineering material, WC-FeCr, has been irradiated with He ions at 25 and 500 °C. Ions were injected at 6 keV to a dose of ~15 dpa and…”
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Enhanced cryogenic mechanical properties of heterostructured CrCoNi multicomponent alloy: Insights from in-situ neutron diffraction by Naeem, Muhammad, Sánchez Cruz, Ricardo J., Esquivel Neri, Miguel A., Ma, Yuemin, Amigó Borrás, Vicente, González, Gonzalo, Knowles, Alexander J., Gong, Wu, Harjo, Stefanus, Zhu, Yuntian T., Wang, Xun-Li, Romero-Resendiz, Liliana

“…Heterostructured materials (HSMs) has been shown to improve the strength-ductility trade-off of conventional alloys but their cryogenic performance has not…”
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