Enhanced glass forming ability and plasticity of a Ni-free Zr-based bulk metallic glass

Liu, Zhonghui; Chan, Kang Cheung; Liu, L.

doi:10.1016/j.jallcom.2009.08.030

Cited by 52 publications

(19 citation statements)

References 33 publications

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“…From DSC and DTA curves, some important thermodynamic data, such as glass transition temperature (T g ), crystallization temperature (T x ), supercooled liquid region (DT x = T x -T g ), melting and liquidus temperature (T m and T l ) as well as the parameters T rg (= T g /T l ) and r = T x /(T g + T l ) can be derived as shown in Table 1. It can be seen that Zr 60.14 Cu 22.31 Fe 4.85 Al 9.7 Ag 3 [27] and Zr 53 Co 18.5 Al 23.5 Ag 5 alloys [28] exhibit a critical dimension of BMG over 10 mm, which also have a relatively larger value of T rg and g. It is noted that some Nifree and Cu-free Zr-based BMGs were also developed [28], which should have a better potential for biomedical applications.…”

Section: Development Of Ni-free Zr-based Bmgsmentioning

confidence: 98%

“…To verify the potential for use as biomaterials of the Ni-free Zr-based BMGs, the mechanical properties of some BMGs developed in this work were examined by compressive testing using Zwick or TMS testing machine. Figure 4 shows the stress-strain (σ-ε) curves of some BMG samples (with aspect ratio of 1∶2) under a constant strain rate of 1Â10 -4 s -1 [27,34]. It can be seen that the BMGs tested exhibit not only high yield strength, but also significant plasticity.…”

Section: Mechanical Behavior Of the Ni-free Zr-based Bmgsmentioning

confidence: 99%

“…Figure 2 shows the out-shape of a few BMG rods and plates prepared by using copper-mould casting. Table 1 lists a few Ni-free BMGs that were newly developed at HUST in recent years [17,[25][26][27][28]. Most of them show very good glass forming ability with critical dimension from 3 to 10 mm in diameter.…”

Section: Development Of Ni-free Zr-based Bmgsmentioning

confidence: 99%

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The potential of Zr-based bulk metallic glasses as biomaterials

Chen

Liu

Zhang

2010

Front. Mater. Sci. China

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Zr-based bulk metallic glasses (BMGs) are a new type of metallic materials with disordered atomic structure that exhibit high strength and high elastic strain, relatively low Young's modulus, and excellent corrosion resistance and biocompatibility. The combination of these unique properties makes the Zr-based BMGs very promising for biomaterials applications. In this review article, the authors give an overview of the recent progress in the study of biocompatibility of Zr-based BMGs, especially the relevant work that has been done in the metallic glasses group in Huazhong University of Science and Technology (HUST), including the development of Ni-free Zr-based BMGs, the mechanical and wear properties, the bio-corrosion resistance, the in vitro and in vivo biocompatibility and the bioactive surface modification of these newly developed BMGs.

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Section: Development Of Ni-free Zr-based Bmgsmentioning

confidence: 98%

Section: Mechanical Behavior Of the Ni-free Zr-based Bmgsmentioning

confidence: 99%

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The potential of Zr-based bulk metallic glasses as biomaterials

Chen

Liu

Zhang

2010

Front. Mater. Sci. China

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“…In fact, over the past two decades, many Zr-based BMGs with the formula Zr-Al-TM have been successfully developed. 3,5,[10][11][12][13][14][15] The quaternary alloys in this system are summarized in Fig. 1; the elements linked with a solid line in the rectangular box represent the transition metals in the pre-existing quaternary alloys.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work, it was found that the addition of Ag was effective in enhancing the ductility of Zr-Cu-Fe-Al BMG. 14) In order to improve the plasticity of the Zr-Pd-Fe-Al alloy, Ag was added in partial substitution of Pd, and the mechanisms for the improvement in plasticity are discussed in a later section.…”

Section: Introductionmentioning

confidence: 99%

Development of Ni- and Cu-Free Zr-Based Bulk Metallic Glasses for Biomedical Applications

2011

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Two Ni-and Cu-free bulk metallic glasses (BMGs) of Zr 65 Pd 17:5 Fe 10 Al 7:5 and Zr 65 Pd 12:5 Ag 5 Fe 10 Al 7:5 , with a critical casting diameter of 6 mm and a compressive strength above 1500 MPa, were developed. While the Zr 65 Pd 17:5 Fe 10 Al 7:5 alloy showed little plastic strain before fracture, the Zr 65 Pd 12:5 Ag 5 Fe 10 Al 7:5 alloy exhibited much larger plasticity by the relatively stable, intermittent propagation of the major shear band under compression. This unusual plastic deformation behavior was interpreted on the basis of the contribution of the icosahedral shortrange order. Potentiodynamic polarization tests revealed that the Zr 65 Pd 12:5 Ag 5 Fe 10 Al 7:5 alloy has a higher corrosion resistance than the Zr 65 Pd 17:5 Fe 10 Al 7:5 alloy in phosphate buffered saline at 37 C. X-ray photoelectron spectroscopy analysis revealed that the passive film of Zr 65 Pd 12:5 Ag 5 Fe 10 Al 7:5 alloy consisted mostly of ZrO 2 , which may be responsible for the excellent corrosion resistance of this alloy. Ni-and Cufree BMGs with a critical diameter of 6 mm, together with enhanced mechanical properties and corrosion resistance, may be promising in biomedical applications.

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Development of Bulk Metallic Glasses for Biomedical Application

2017

Metallic Biomaterials

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Enhanced glass forming ability and plasticity of a Ni-free Zr-based bulk metallic glass

Cited by 52 publications

References 33 publications

The potential of Zr-based bulk metallic glasses as biomaterials

The potential of Zr-based bulk metallic glasses as biomaterials

Development of Ni- and Cu-Free Zr-Based Bulk Metallic Glasses for Biomedical Applications

Development of Bulk Metallic Glasses for Biomedical Application

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