Investigation of hot extruded GW84 alloy on high temperature tensile properties and microstructure evolution

Yan, Lipeng; Li, Quanan; Zhu, Limin; Chen, Xiaoya; Yang, Laidong; Chen, Jun; Li, Wuhui

doi:10.1016/j.jmrt.2021.04.092

Cited by 19 publications

(5 citation statements)

References 38 publications

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“…In the Mg-8%Gd-4%Y-1%Sm-0.5%Zr alloy [35], sufficiently high strength properties were obtained in testing at elevated temperatures. The authors do not give mechanical properties at room temperature, possibly due to low plastic characteristics under these conditions.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The effect of samarium on magnesium alloys with yttrium and gadolinium was investigated in [35][36][37][38][39]. In works [35,36], alloys with a high content of gadolinium were considered. Mechanical properties mainly at elevated temperatures and creep resistance of Mg-8%Gd-4%Y-1%Sm-0.5%Zr and Mg-11%Gd-2%Y-3%Sm-0.5%Zr alloys were studied.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of samarium on the mechanical properties in tensile and compression tests and the kinetics of hardening during aging were investigated for as-cast Mg-5.5%Y-5.5%Gd-3%Sm-0.7%Zr and Mg-7.5%Y-7.5%Gd-5%Sm-0.7%Zr alloys in [37]. In general, studies [35][36][37] were focused on sufficiently rich REE compositions (more than 13% ∑REEs). It was shown that the alloys had low ductility in tensile tests.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Samarium on the Properties of Hot-Extruded Mg–Y–Gd–Zr Alloys

Lukyanova,

Martynenko,

Rybalchenko

et al. 2023

Crystals

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The effect of such an additional promising alloying element as samarium on hot-extruded Mg–Y–Gd–Zr alloys is investigated. The microstructure, kinetics of aging during the decomposition of a supersaturated Mg solid solution, and the mechanical properties of the alloys are studied. The differences of the recrystallization processes that occur in hot-extruded alloys with various contents of samarium (0, 1.7, 2.5%) are demonstrated. After hot extrusion, Mg–Y–Gd–Zr and Mg–Y–Gd–Sm–Zr alloys are additionally hardened during aging due to the decomposition of a supersaturated Mg solid solution. At the same time, samarium changes the nature of this hardening. The alloys with samarium are hardened faster, and the maximum hardness is achieved with shorter aging exposures. The mechanical properties of hot-extruded Mg–Y–Gd–Zr alloys with samarium addition are determined at room and elevated up to 300 °C temperatures. The efficiency and expediency of using samarium both as a separate alloying element and as a partial replacement of more expensive rare-earth elements in alloys with yttrium and gadolinium are shown.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Samarium on the Properties of Hot-Extruded Mg–Y–Gd–Zr Alloys

Lukyanova,

Martynenko,

Rybalchenko

et al. 2023

Crystals

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“…To meet the cementing requirements of horizontal wells under relatively low geothermal conditions, an early-strength, thermoplastic, micro-expansive cement slurry cementation technology for thermal recovery wells has been developed [12][13][14][15] . By increasing the number of accelerators and plasticizers in the cement slurry and incorporating modified composite toughening materials, the filtrate resistance of the cement slurry is enhanced, improving its leak prevention and plugging performance and augmenting the slurry's strength, resilience, and rheology (Table 2).…”

Section: Cement Slurry Performance Optimization Under Low-temperature...mentioning

confidence: 99%

Research and application of drilling technologies in junggar basin for neogene ultra-shallow horizontal wells

Liu,

Wang,

Liu

2024

J. Phys.: Conf. Ser.

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The ultra-shallow heavy oil reservoir in Chunfeng Oilfield has become an important position in increasing reserves and production. Vertical wells have low production and poor benefits. The development engineering technology of horizontal wells faces many technical problems. Aiming at the drilling problems of ultra-shallow heavy oil horizontal wells, research and application have been carried out from the aspects of drilling engineering optimization design and shallow soft formation trajectory control. Shallow heavy oil cementing and completion and key drilling and completion technologies suitable for the efficient development of ultra-shallow heavy oil in the Neogene of Junggar Basin have been formed. The field application results show that the technology has well supported the development of ultra-shallow heavy oil reservoirs and has accumulated many construction records, such as the shallowest vertical depth, the largest vertical ratio, and the shortest drilling and completion period. The new production capacity of 50 thousand tons has strongly supported the benefit and production increase of Shengli exploration area in the Junggar Basin.

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