Deformation-Induced Martensitic Transformation in Cu-Zr-Zn Bulk Metallic Glass Composites

Wu, Dong Yang; Song, Kai; Cao, Chongde; Li, Ran; Wang, Gang; Wu, Yuan; Wan, Feng; Ding, Fuli; Shi, Yue; Bai, Xiaojun; Kaban, I.; Eckert, J.

doi:10.3390/met5042134

Cited by 19 publications

(11 citation statements)

References 54 publications

(165 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fracture morphologies (Figure 5f) show a number of vein-like and river-like patterns while some fine river-like patterns appear at the interface between the amorphous phase and the crystals, implying that the "blocking effect" [52] originating from the crystals has a large influence on the fracture mode. Generally speaking, by introducing ductile shape memory crystals into the glassy matrix, the ductility of BMG composites can be improved [20][21][22][23][24][25][26]. During the early stage of deformation, martensitic transformation occurs within B2 crystals in CuZr-based BMG composites [20][21][22][23][24][25][26].…”

Section: Compositionmentioning

confidence: 99%

“…Generally speaking, by introducing ductile shape memory crystals into the glassy matrix, the ductility of BMG composites can be improved [20][21][22][23][24][25][26]. During the early stage of deformation, martensitic transformation occurs within B2 crystals in CuZr-based BMG composites [20][21][22][23][24][25][26]. With increasingly applied stress, martensitic transformation becomes more prominent while a large amount of twins form easily within B2 crystals with a relatively lower stacking fault energy [53].…”

Section: Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Based on the concept of transformation-induced plasticity (TRIP), CuZr-based BMG composites were developed by introducing the ductile, shape memory B2 CuZr phase into the glassy matrix [20][21][22][23][24][25][26]. Such BMG composites exhibit high strength and good plasticity together with obvious work-hardening under compressive and tensile loading conditions [20][21][22][23][24][25][26]. In order to promote the further development of such shape memory BMG composites, a lot of research has been devoted to applying this concept to other glass-forming compositions [27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Martensitic Transformation and Plastic Deformation of TiCuNiZr-Based Bulk Metallic Glass Composites

Sun

Song

Han

et al. 2018

Metals

Self Cite

View full text Add to dashboard Cite

In this study, the microstructural evolution and mechanical properties of TiCuNiZr-based bulk metallic glass (BMGs) composites were systematically investigated in order to optimize both the strength and the ductility of BMGs. By tailoring the glass-forming compositions, TiCuNiZr-based BMG composites with different volume fractions of B2 (Ti,Zr)(Cu,Ni) crystals precipitating in the glassy matrix exhibit not only macroscopic ductility but also high strength as well as work-hardening, which is due to the formation of multiple shear bands and martensitic transformation during deformation. Optimized mechanical properties can be achieved when the crystalline volume fraction is at least higher than 44 vol. %, which is attributed to the sizeable difference between Young's moduli of the B2 (Ti,Zr)(Cu,Ni) crystals and the glassy matrix, and the precipitation of Ti 2 Cu intermetallic compounds at the B2 crystal boundaries. Our study provides a complementary understanding of how to tailor mechanical properties of TiCu-based BMG composites.

show abstract

Section: Compositionmentioning

confidence: 99%

Section: Compositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Martensitic Transformation and Plastic Deformation of TiCuNiZr-Based Bulk Metallic Glass Composites

Sun

Song

Han

et al. 2018

Metals

Self Cite

View full text Add to dashboard Cite

show abstract

“…As aforementioned, metallic glasses are relatively brittle when tested in their fully amorphous as-prepared state. Strategies to increase plastic deformation based partial crystallization or formation of metallic glass composites are reported by D. Wu et al [21] and Ö. Balcı et al [22]. Formation of metallic glass porous frameworks is described by B. Sarac et al [23].…”

mentioning

confidence: 99%

Metallic Glasses

Chan¹,

Sort

2015

Metals

View full text Add to dashboard Cite

Metallic glasses are a fascinating class of metallic materials that do not display long-range atomic order. Due to their amorphous character and the concomitant lack of dislocations, these materials exhibit mechanical properties that are quite different from those of other solid materials [1,2]. For example, they can be twice as strong as steels, show more elasticity and fracture toughness than ceramics and be less brittle than conventional oxide glasses. In addition to their unique mechanical properties, metallic glasses have also demonstrated interesting physical and chemical properties. For example, some metallic glasses have been found to exhibit superior soft magnetic properties [3], good magnetocaloric effects [4] and outstanding catalytic performance [5], thus having potential for a widespread range of technological applications [6].Metallic glasses become relatively malleable when heated in the supercooled liquid region, allowing moulding and shaping with microscale precision by means of thermoplastic processing [7]. This has facilitated the development of diverse products based on these alloys, including sporting goods, medical and electronic devices and advanced defence and aerospace applications. However, in spite of their large elasticity, metallic glasses exhibit poor room-temperature macroscopic plasticity compared to polycrystalline metals [8]. This low plastic deformation, particularly evidenced when testing metallic glasses under tension, is related to the formation and rapid propagation of shear bands [2]. Therefore, novel routes to enhance plasticity of metallic glasses include procedures to hinder shear band propagation. This can be achieved, for example, by designing composite materials consisting of particles which act as second-phase reinforcements embedded in the amorphous matrix [9,10]. Other approaches towards toughening of metallic glasses have also been developed, such as the preparation of the so-called dual-phase amorphous metals [11], some specific surface treatments (e.g., laser or shot pinning) [12], or making their overall structure porous (i.e., metallic glass foams) [13]. OPEN ACCESS

show abstract

Effect of cooling rate during solidification on structure and mechanical properties of Cu45Zr48Al7 glass-forming alloy

Kozieł,

Cios,

Rutkowski

et al. 2023

J Mater Sci

View full text Add to dashboard Cite

The CuZr-based bulk metallic glass matrix composites have attracted great attention in recent years owing to their unique mechanical properties compared to bulk glassy samples. The vital effect of B2 CuZr phase on mechanical properties was previously confirmed in CuZr-based alloys with equiatomic concentrations of copper and zirconium. In this paper, the structures and mechanical properties of the Cu45Zr48Al7 alloy, which has hypereutectoid composition with respect to stoichiometric B2 CuZr phase, were studied. This alloy exhibits high glass-forming ability, but low tendency to form the B2 CuZr phase during solidification. However, we demonstrated that depending on the cooling rate during solidification, governed by sample diameter, either bulk metallic glass or bulk metallic glass matrix composite can be produced. In order to allow partial crystallization of the B2 phase during solidification with the volume fraction allowing to observe the strain hardening effect, the minimum cooling rate should be lower than 40 K/s. The composite consisting of a glassy outer layer and a crystalline core composed of the B2 phase exhibits fracture strength of the same level as the bulk glassy sample (above 1800 MPa) obvious work-hardening with a plastic deformation of about 6%.

show abstract

Deformation-Induced Martensitic Transformation in Cu-Zr-Zn Bulk Metallic Glass Composites

Cited by 19 publications

References 54 publications

Martensitic Transformation and Plastic Deformation of TiCuNiZr-Based Bulk Metallic Glass Composites

Martensitic Transformation and Plastic Deformation of TiCuNiZr-Based Bulk Metallic Glass Composites

Metallic Glasses

Effect of cooling rate during solidification on structure and mechanical properties of Cu45Zr48Al7 glass-forming alloy

Contact Info

Product

Resources

About