The structure and mechanical properties of as-cast Zr–Ti alloys

Hsu, Hsueh-Chuan; Wu, Shih-Ching; Sung, Yu-Chih; Ho, Wen-Fu

doi:10.1016/j.jallcom.2009.08.105

Cited by 144 publications

(74 citation statements)

References 28 publications

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“…It was worth noting that a 0 phase had higher hardness, bending strength and modulus compared to b phase. A similar result was obtained in as-cast Zr-Ti alloys 30 and Ti-Nb alloys. 39 Zr-1Mo alloy exhibited a high hardness (close to CoCr alloy, 4.28 GPa 43 ) and bending strength (similar to TC4).…”

Section: Discussionsupporting

confidence: 86%

“…The pre-set maximum deflection at middle span was 8 mm. The bending strength is determined using the equation, 30 r ¼ 3PL/2bh 2 , where r is the bending strength (MPa), P is the load (N), L is the span length (mm), b and h are the width (mm) and the thickness (mm) of the specimens, respectively. In this process, the span length was 30 mm, and the dimension of test specimen was 3 mm (width) Â 1 mm (thickness).…”

Section: Mechanical Properties Measurementmentioning

confidence: 99%

“…In this process, the span length was 30 mm, and the dimension of test specimen was 3 mm (width) Â 1 mm (thickness). The modulus of elasticity (E) in bending is calculated from the equation, 30 E ¼ L 3 DP/4bh 3 Dd, where DP is the load increment and Dd is the deflection increment at middle span. The DP/Dd is determined from the load increment and the corresponding deflection increment on the straight line of the stress-deflection profile.…”

Section: Mechanical Properties Measurementmentioning

confidence: 99%

“…This result suggested that cubic b phase appeared to be softer than hexagonal a 0 phase in Zr-Mo alloys, which was similar to the cast Zr-Ti alloy reported in a previous study. 30 Corrosion behavior OCP is the potential at which the metal reaches equilibrium with the liquid environment. 35 Figure 4 shows OCP vs. time curves of pure Zr and Zr-Mo alloys together with TC4 and 316L SS in SBF solution.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

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Microstructure, mechanical property, corrosion behavior, and in vitro biocompatibility of Zr–Mo alloys

et al. 2012

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In this study, the microstructure, mechanical properties, corrosion behaviors, and in vitro biocompatibility of Zr-Mo alloys as a function of Mo content after solution treatment were systemically investigated to assess their potential use in biomedical application. The experimental results indicated that Zr-1Mo alloy mainly consisted of an acicular structure of a 0 phase, while x phase formed in Zr-3Mo alloy. InZr-5Mo alloy, retained b phase and a small amount of precipitated a phase were observed. Only the retained b phase was obtained in Zr-10Mo alloy. Zr-1Mo alloy exhibited the greatest hardness, bending strength, and modulus among all experimental Zr-Mo alloys, while b phase Zr-10Mo alloy had a low modulus.

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Section: Discussionsupporting

confidence: 86%

Section: Mechanical Properties Measurementmentioning

confidence: 99%

Section: Mechanical Properties Measurementmentioning

confidence: 99%

Section: Mechanical Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Microstructure, mechanical property, corrosion behavior, and in vitro biocompatibility of Zr–Mo alloys

et al. 2012

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“…Several Ti-X binary alloys have been developed, such as Ti-Nb [5][6][7], Ti-Ag [8,9], Ti-Au [10], Ti-Hf [11], Ti-Mn [12], Ti-Cr [13,14], Ti-Mo [15], Ti-Sn [16], Ti-Zr [17][18][19], Ti-Ta [20,21], Ti-Co [22], Ti-Pd [23], Ti-Ge [24] and Ti-Cu [25] alloys. The mechanical properties of Ti alloys are influenced by their microstructure, which, in turn, depends on chemical composition and synthetic processing.…”

Section: Introductionmentioning

confidence: 99%

Effect of Indium Content on the Microstructure, Mechanical Properties and Corrosion Behavior of Titanium Alloys

Han

Hwang

et al. 2015

Metals

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Ti-xIn (x = 0, 5, 10, 15 and 20 wt%) alloys were prepared to investigate the effect of indium on the microstructure, mechanical properties, and corrosion behavior of titanium with the aim of understanding the relationship between phase/microstructure and various properties of Ti-xIn alloys. The Ti-xIn alloys exhibited a lamellar α-Ti structure at an indium content of up to 20 wt%. High-resolution TEM images of the Ti-xIn alloys revealed that all the systems contained a fine, acicular martensitic phase, which showed compositional fluctuations at the nanoscopic level. The mechanical properties and corrosion behavior of Ti-xIn alloys were sensitive to the indium content. The Vickers hardness increased as the In content increased because of solid solution strengthening. The Ti-xIn alloys exhibited superior oxidation resistance compared to commercially pure Ti (cp-Ti). Electrochemical results showed that the Ti-xIn alloys exhibited a similar corrosion resistance to cp-Ti. Among the alloys tested, Ti-10In showed a potential for use as a dental material.

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Enhancing Mechanical Properties of TiZrAlV by Engineering a Multi‐Modal‐Laminated Structure

Shi

Wang

et al. 2015

Adv Eng Mater

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In the present study, microstructure and mechanical properties of a new b-metastable TiZrAlV prepared via thermomechanical processing (TMP) treatments have been studied. An excellent combination of ultimate tensile strength (s b % 1 630 MPa) and ductility (e f % 6.6%) has been achieved in the alloy after cold rolling, thermal annealing (665 C/1 h), and two-step aging (650 C/ 0.5 h þ 450 C/2 h). This is attributed to the formation of a refined b microstructure with grain size of %10 mm and a multi-modal-laminated structure that consists of large primary a p grains (2 mm, 9.5 vol %) and coarse a precipitates (300 nm, 21 vol%) and fine a platelets (50 nm, 65 vol%). The fine a platelets contribute to high strength while the large primary a p grains and the refined b grain size provide ductility.b-Metastable titanium alloys have been considered attractive materials for widespread applications, such as aircraft design and automotive industries, because of the combination of high strength-to-density ratio (50-280 MPa cm 3 g À1 ), good corrosion resistance, and excellent fatigue property (e.g., HCF strength of 500-650 MPa at 10 7 cycles). [1,2] Mechanical properties of b-metastable Ti alloys are usually enhanced by the precipitation of fine secondary a phase using aging treatment, which leads to increased strength and decreased ductility. [1,2] However, at strength levels above 1 300 MPa, their practical applications (e.g., the material's service lifetime) have been limited by low ductility. [3] It is, therefore, significant to enhance the ductility of high-strength b-Ti alloys for practical applications, as the enhanced ductility can enhance the material's resistance to fatigue and extend the material's service lifetime. [4] Usually, the ductility of b-Ti alloys is controlled not only by b grain size but also by the morphology and distribution of a precipitates. [5,6] Previous studies show that a combination of a fine-grain b microstructure and the fine and uniform precipitation of a precipitates can lead to an exceptional combination of high strength and reasonable ductility in TIMETAL-LCB and b-21S alloys. [3,7] Recently, a multi-modal-laminated structure, [8][9][10][11][12] consisting of large a p grains and fine a precipitates or of coarse and fine a precipitates, has been extensively reported to achieve an excellent balance of strength (ultimate strength > 1 500 MPa) and ductility (elongation to failure > 6%) in many Ti alloys.A new b-metastable high-strength TiZrAlV alloy has been recently designed for aerospace applications. [13][14][15] Previous studies demonstrate that the chemical properties of Zr and Ti are similar, these two metals have a stronger solid solution strengthening response and the b transition temperature of the ZrTi binary alloys can be modulated by varying the element contents. [13,16,17] These favorable conditions may contribute to develop a new TiZrAlV alloy with excellent mechanical properties. However, the relationship between the microstructure and mechanical properties of this new TiZrAlV...

show abstract

The structure and mechanical properties of as-cast Zr–Ti alloys

Cited by 144 publications

References 28 publications

Microstructure, mechanical property, corrosion behavior, and in vitro biocompatibility of Zr–Mo alloys

Microstructure, mechanical property, corrosion behavior, and in vitro biocompatibility of Zr–Mo alloys

Effect of Indium Content on the Microstructure, Mechanical Properties and Corrosion Behavior of Titanium Alloys

Enhancing Mechanical Properties of TiZrAlV by Engineering a Multi‐Modal‐Laminated Structure

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