Hot Consolidation of Partially Amorphous Cu-Ti Based Alloy: a Comparison Between Hot Extrusion and Hot Compaction by Sintering

Medeiros, Bruno Bellini; Kiminani, Cláudio Shyinti; Filho, Walter José Botta; Jorge, Alberto Moreira

doi:10.1590/1516-1439.277114

Cited by 3 publications

(2 citation statements)

References 21 publications

(23 reference statements)

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“…After rapid solidification, the formation of white oriented columnar structures is suppressed and the white phase is quenched into smaller structures (Figure 4 Furthermore, in SAEDP, small dispersive points in diffusive halo can be noted. This behavior can be related to small crystalline structures 31,32 . Figure 6 presents the polarization curves and the Table 3 displays the passivation current (I) for all analyzed samples.…”

Section: Resultsmentioning

confidence: 96%

Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

Castilho

Santos

2019

Mat. Res.

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In this paper, a composition of known high glass-forming ability, Cu 42 Zr 42 Al 8 Ag 8 and a novel Cu 42 Zr 42 Al 8 Ag 4 Sn 4 , were produced by suction-casting. After rapid solidification of both alloys, X-ray diffraction patterns along with crystallite size estimation by Scherrer equation and scanning electron microscopy images revealed a refined microstructure, composed mainly by AlCu 2 Zr, CuZr 2 and Cu 10 Zr 7 phases. Transmission electron microscopy indicated the presence of small crystalline precipitates in the Cu 42 Zr 42 Al 8 Ag 4 Sn 4 suction-casted sample. Polarization curves showed a higher passivation current in the Sn containing sample, suggesting a decrease in corrosion resistance.

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Section: Resultsmentioning

confidence: 96%

Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

Castilho

Santos

2019

Mat. Res.

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“…At present, the main preparation method of the Ti-based metallic glass is high-energy ball milling technology. [14,15] Dai et al [16] have modified tungsten powder by high-energy ball milling process to accelerate the diffusion of titanium in tungsten for preparing titanium-tungsten alloy. Wang et al [17] have prepared Cu-Ti-C alloy by two-step ballmilling treatments.…”

Section: Introductionmentioning

confidence: 99%

Preparation and electrochemical characterization of Ti‐based amorphous metallic glass with high strength

Zhang

Tian

et al. 2020

Materials & Corrosion

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Ti‐based amorphous metallic glasses have excellent mechanical, physical, and chemical properties, which is an important development direction and research hotspot of metal composite reinforcement. As a stable, simple, efficient, and large‐scale preparation technology of metallic powders, the gas atomization process provides an effective way of preparing amorphous metallic glasses. In this study, the controllable fabrication of a Ti‐based amorphous powder, with high efficiency, has been realized by using gas atomization. The scanning electron microscope, energy‐dispersive spectrometer, and X‐ray diffraction are used to analyze surface morphology, element distribution, and phase structure, respectively. A microhardness tester is used to measure the mechanical property. An electrochemical workstation is used to characterize corrosion behavior. The results show that as‐prepared microparticles are more uniform and exhibit good amorphous characteristics. The mechanical test shows that the hardness of amorphous powder is significantly increased as compared with that before preparation, which has the prospect of being an important part of engineering reinforced materials. Further electrochemical measurement shows that the corrosion resistance of the as‐prepared sample is also significantly improved. This study has laid a solid foundation for expanding applications of Ti‐based metallic glasses, especially in heavy‐duty and corrosive domains.

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Microstructure and Mechanical Behavior of Microwave Sintered Cu50Ti50 Amorphous Alloy Reinforced Al Metal Matrix Composites

Reddy

Ubaid

Shakoor

et al. 2018

JOM

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Hot Consolidation of Partially Amorphous Cu-Ti Based Alloy: a Comparison Between Hot Extrusion and Hot Compaction by Sintering

Cited by 3 publications

References 21 publications

Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

Preparation and electrochemical characterization of Ti‐based amorphous metallic glass with high strength

Microstructure and Mechanical Behavior of Microwave Sintered Cu50Ti50 Amorphous Alloy Reinforced Al Metal Matrix Composites

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