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Displaying assets from 1 to 30 out of 22
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Description Compressive stress–strain curves demonstrating the dramatic enhancement in ductility by cold rolling to 50% thickness reduction. Other studies have shown similar benefit from as little as 2%...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Differences observed in the bending and tensile behaviors of BMGs. (a) Extensive deformation by multiple shear bands is observed in bending for the Zr63.47Ti4.53Cu23Al9 BMG composition (Z4‐28). (b)...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Compressive and bending ductility for Zr–Cu–Ni–Al BMGs. (A) Compressive true stress–strain curves for high aspect ratio (AR = 2) rods of Zr61.88Cu18Ni10.12Al10 (S1), Zr64.13Cu15.75Ni10.12Al10 (S2),...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Filtered and threshold HRTEM images of the shear band/matrix interface region for (a) a cold rolled and (b) a cold‐rolled and annealed Al86.8Ni3.7Y9.5 metallic glass. Dark spots indicate nanovoids...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Ashby plot showing yield strength − fracture toughness relationships for various engineering materials illustrating the excellent combinations that can be achieved by metallic glasses. Diagonal...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Plot of shear band density, ρSB, versus true plastic strain, ϵ, showing the power law relation indicated in Equation for various Zr‐based BMG compositions subjected to different cold rolling or...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description The poor fatigue resistance for some Zr–Ti–Ni–Cu–Be BMG compositions has been attributed to a strong corrosion fatigue affect in ambient air that is not observed for more fatigue resistant...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description (a–c) Schematics of an imprinting process that has been successfully used to improve the ductility of BMGs. (d, e) Examples of imprinted tensile samples. Reprinted from ref. with permission from...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Vickers microhardness maps of the cross‐section of (a) an as‐cast BMG Zr52.5Ti5Cu18Ni14.5Al10 sample and (b) one imprinted using the process shown in Figure . Panel (c) shows improved ductility...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Twenty two tensile stress–strain curves for a Zr48Cu45Al7 BMG showing excellent strength reliability despite essentially zero percent elongation. For this BMG, a Weibull modulus of 36.5 was...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Roughly a factor of two difference is seen in the fatigue limit for Zr41.25Ti13.75Ni10Cu12.5Be22.5 BMGs produced by different manufacturers, Howmet and Liquidmetal. This difference was found to be...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Plot showing the much more dramatic increase in toughness observed for some studies of Vitrely 1 (Zr41.2Ti13.8Cu12.5Ni10.0Be22.5) compared to several steels, a beta titanium alloy, and an aluminum...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Pre‐crack tip in a Zr52.5Cu17.9Ni14.6Al10Ti5 BMG that has blunted to a crack tip opening displacement on the order of tens of micrometers. Reprinted from ref. with permission from Elsevier.
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description The effect of cooling rate on the compressive ductility of Zr48Cu45Al7 BMG rods. Sample “a” was cooled more slowly than sample “b,” and the slower cooled sample “b” demonstrates more shear banding...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description For the BMG composition Zr56Al16Co28, there is no effect of strain rate on the tensile strength in Hank's balanced salt solution (HBSS), phosphate‐buffered saline (PBS(−)), or 0.9% NaCl, suggesting...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description (a) Improved compressive ductility achieved in 1.5 mm diameter Zr62Cu24Fe5Al9 BMG rods as a function of the number of thermal cycles between 77 and 338 K. (b) The effect of thermal cycling between...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Cold working by mechanical imprinting induces increased fracture toughness of Zr52.5Cu17.9Al10Ni14.6Ti5 while greatly reducing the scatter. Figure produced using data from ref.
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Improved compressive ductility achieved by shot peening Vitreloy 1 (Zr41.2Ti13.8Cu12.5Ni10.0Be22.5). Inset (b) shows the sporadic shear banding on the as‐cast samples while inset (c) shows the...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Reduction in fracture toughness for a BMG (Zr44Ti11Ni10Cu10Be25) as the free volume is reduced by sub‐Tg annealing. Δvf/vm is the percent change of free volume per atom induced by annealing....
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Example of notch strengthening observed in Vitreloy 1 with nominal composition Zr41.2Ti13.8Cu12.5Ni10.0Be22.5. Only samples that failed at large inclusion defects, marked with arrows, did not show...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description Apparent fracture toughness, KQ, as a function of the uncracked ligament size, b. (a) The behavior for a BMG with composition Zr52.5Cu17.9Al10Ni14.6Ti5. Note how some samples show a dramatic...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials -
Description While the range of reported fatigue resistance for Vitreloy 1 (Zr41.25Ti13.75Ni10Cu12.5Be22.5) is usually low, other BMG compositions, such as Zr52.5Cu17.9Al10Ni14.6Ti5, exhibit good fatigue...
Article Title: Bulk Metallic Glasses as Structural Materials: A Review
Publication Title: Advanced Engineering Materials
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