Effects of drawing on the tensile fracture strength and its reliability of small-sized metallic glasses

Weibull Statistical Reliability Analysis of Mechanical and Magnetic Properties of FeCuNbxSiB Amorphous Fibers

“…where n is the total number of the samples tested, and i is the sample ranking in ascending order of the failure stress [17]. Figure 9 shows the Weibull plots of the samples calculated by Equation (1).…”

“…Weibull-statistical analysis has been introduced to characterize the strength reliability of the glass-coated fibers [16][17][18]. The Weibull equation is usually used to determine the Weibull modulus in the double logarithmic form…”

An index of shear banding susceptibility of metallic glasses

“…(4) demonstrates the role of stress gradients in the incubation of shear bands in MGs, because that the initiation of shear banding is always attributed to the stress concentrators of MGs, namely, local defects or the sites where free volume accumulates [1], where both scenarios associate with stress gradients. Stress gradients enhanced shear banding propensity of MGs have widely been proved, such as indentation where severe stress gradients beneath the indenter trigger large amounts of shear bands [47], the stress gradients introduced by shot peening [48] or drawing [49] leading to pronounced shear bands proliferation and the stress gradients introduced via adjusting the shape of MGs, like the aspect ratio [50,51], the notch [52] and the unparalleled ends Table 1 Shear banding susceptibility of several metallic glasses. [53].…”

Magnetic Fibers

“…The amorphous ibers prepared by diferent techniques are as follows: (1) in-rotating-water ibers, (2) glass-covered ibers and (3) melt-extracted ibers. Diferent preparation methods lead to diferent cooling rates, which in turn cause diferent properties.…”

“…The amorphous ibers are deined as microibers that have a diameter of dozens of micrometers and long-range disordered structure. This kind of ibers not only have high strength and some interesting mechanical properties [1], but they also exhibit unique magnetic efects such as large Barkhausen efect [2], Mateucci efect, giant magneto-impedance (GMI) efect [3] and giant stress-impedance efect, because of their unique internal stress distribution and magnetic domain structures [4]. As these characteristic magnetic efects are the foundation of various sensors, more and more atentions are atracted.…”