Non-repeatability of large plasticity for Fe-based bulk metallic glasses

Yang, Weiming; Sun, Baoan; Zhao, Yucheng; Li, Qiang; Hou, Long; Luo, Ning; Dun, Chaochao; Zhao, Chengliang; Ma, Zhuang; Liu, Haishun; Shen, Baolong

doi:10.1016/j.jallcom.2016.03.169

Cited by 23 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bulk amorphous alloys have excellent properties such as high strength, high hardness and low modulus of elasticity, making them a very good application prospect as structural materials [1][2][3][4].Researchers have developed multi-component bulk amorphous alloys such as Pd-based, Zr-based, Fe-based, Co-based, Ni-based and Ti-based [5][6][7]. However, the plastic rheology of amorphous alloys imited to the shear bands is achieved by localized shear deformation [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

Shan¹,

Zhang²,

Jia³

et al. 2019

Preprint

View full text Add to dashboard Cite

A series of Ti40Zr25Cu9Ni8Be18)100-xTMx (x = 0, 1, 2, 3, 4 at.%, TM = Nb, Y) Bulk amorphous alloys were designed and prepared using the copper mold casting method. The microstructures, glass forming ability and mechanical properties of the alloys were investigated by means of X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), differential scanning colorimetry (DSC), depth-sensitive nanoindentation and uniaxial compressive test. The Bulk amorphous alloys with different ductility were investigated by measuring their plastic deformation energy (PDE) of the first pop-in events during loading. The relationships between the PDE value, shear band formation and ductility in Bulk amorphous alloys have been investigated. The results show that the PDE value decreases by the Nb addition and promotes the generation of multiple shear bands easily, which increase the fracture strength and plasticity significantly. Substituting Nb with Y has exactly the reverse effect. A useful rule for preparing of Bulk amorphous alloys with high plasticity is herein proposed, whereby the chemical composition of the Bulk amorphous alloys can be tailored to possess a lower PDE value.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

Shan¹,

Zhang²,

Jia³

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Thus, the various deformation modes in BMGs are determined by different shear banding behaviors. Extensive reports have shown that the shear banding behaviors and hereby deformation modes are influenced by various factors, including material compositions [14][15][16], loading rate [17][18][19][20][21][22][23][24] and temperature [25][26][27][28]. In addition, sample size [29][30][31] and stress state during loading [32,33] also affect deformation mode.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses

Zhou

Hou

et al. 2018

Intermetallics

View full text Add to dashboard Cite

A B S T R A C TThe rate effect on the deformation mode of bulk metallic glasses (BMGs) is investigated by a comparative study between ductile and brittle compositions via real-time photographing. The strain-rate controls the deformation mode transition from shear-dominated sliding under quasi-static compression to cracking-dominated fracture under dynamic compression. In ductile BMGs, progressive sliding occurs at lower strain rate and contributes to a stable deformation manner. In brittle BMGs, however, unstable deformation occurs through rapid sliding even under quasi-static compression. Both ductile and brittle BMGs undergo unstable deformation under dynamic compression. The rate-dependent and composition-dependent tendency of stable or unstable deformation is well characterized by a model based on the ratio of the applied strain energy to the critical dissipation energy at the local shear banding region.

show abstract

“…The required magnetic properties are usually large saturation magnetization, low coercive field and high magnetic permeability. Fe-based metallic glasses can be characterized by their chemical compositions containing metalloids (B, Si, P), other metals (Co, Ni, Cu, Zr, Hf, Mo, Nb, Al, Ta) and also rare earth elements [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties and Structure after Crystallization of Fe_80-xB₂₀Nb_x (x=4, 6, 10) Metallic Glasses

et al. 2017

View full text Add to dashboard Cite

The ferromagnetic Fe-based amorphous alloys were studied due to properties for soft magnetic applications. Depending on different Nb addition, the formation of crystalline phases after annealing of amorphous Fe80−xB20Nbx (x = 4, 6, 10) alloys was studied. The crystallization products as well as the phase structure were determined using the Mössbauer spectrometry combined with differential scanning calorimetry and magnetic measurements. The addition of Nb caused a shift of crystallization process towards higher temperatures and induced changes in coercive force and decreased the saturation magnetization. It was found that Nb addition changed the crystallization process from single crystallization for Fe76B20Nb4 alloy to binary crystallization in the Fe74B20Nb6 and Fe70B20Nb10 glasses. The annealing process at the onset crystallization temperature induced complex phase formation including the α-Fe, Fe3B, and Fe2B phases for alloys x = 4, 6.

show abstract

Non-repeatability of large plasticity for Fe-based bulk metallic glasses

Cited by 23 publications

References 33 publications

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses

Magnetic Properties and Structure after Crystallization of Fe_80-xB₂₀Nb_x (x=4, 6, 10) Metallic Glasses

Contact Info

Product

Resources

About

Non-repeatability of large plasticity for Fe-based bulk metallic glasses

Cited by 23 publications

References 33 publications

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

Effect of Niobium and Yttrium Modified Ti-Based Bulk Amorphous Alloy on Correlation of Plastic Deformation Energy and Ductility

A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses

Magnetic Properties and Structure after Crystallization of Fe80-xB20Nbx (x=4, 6, 10) Metallic Glasses

Contact Info

Product

Resources

About

Magnetic Properties and Structure after Crystallization of Fe_80-xB₂₀Nb_x (x=4, 6, 10) Metallic Glasses