Ultrafine grained Ti-based composites with ultrahigh strength and ductility achieved by equiaxing microstructure

Liu, Lehua; Chao, Yang; Wang, F.; Qu, Shengguan; Li, X. Q.; Zhang, W. W.; Li, Y. Y.; Zhang, Lai-Chang

doi:10.1016/j.matdes.2015.04.032

Cited by 91 publications

(20 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5c. It's known that cracks emerge in the matrix would deteriorate the strength and plasticity [29,30]. Besides, the fragile S2 phases retard the propagation of dislocations in the UFGed bulk alloys (Fig.…”

Section: Resultsmentioning

confidence: 99%

Biomedical TiNbZrTaSi alloys designed by d-electron alloy design theory

Chao

Wang

et al. 2015

Materials & Design

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Biomedical TiNbZrTaSi alloys designed by d-electron alloy design theory

Chao

Wang

et al. 2015

Materials & Design

Self Cite

View full text Add to dashboard Cite

“…The samples before and after being corroded were weighed using an analytical balance (Cubis, MSE224S-0CE-DU, Goettingen, Germany) with an accuracy of 0.01 mg. Figure 2 shows the microstructure of the experimental alloy after β-quenching. Lath structures are easily formed in the alloys which transformed from the body-centered cubic (BCC) structural β phase to the hexagonal close-packed (HCP) α phase [4,[29][30][31][32]. In this work, the experimental alloy was quenched from 1050 • C (in the β-phase region), undergoing a transformation from the β to α phase.…”

Section: Corrosion Testsmentioning

confidence: 99%

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Chen

Sang

Zhang

et al. 2018

Metals

View full text Add to dashboard Cite

Homogeneous distribution of fine second-phase particles (SPPs) fabricated by cycles of deformation and annealing in zirconium alloys is a critical consideration for the corrosion resistance of fuel claddings. Different deformation degrees of zirconium alloys would result in distinctive microstructures, leading to a distinct growth of SPPs during subsequent annealing. Unfortunately, the homogenization and growth behavior of SPPs in deformed zirconium alloys have not been well studied. In this work, a β-quenched Zr–Sn–Nb–Fe–Cu–Si–O alloy was rolled and annealed at 580 °C or 680 °C. The morphologies, distributions, and sizes of SPPs resulting from the different processing procedures were investigated. A linear distribution of SPPs is found in the β-quenched sample. Afterward, SPPs grow and are randomly distributed during heat treatment as the deformation degree or annealing time (or temperature) increases. The homogenization and growth of SPPs are attributed to the Ostwald ripening mechanism that is governed by lattice diffusion and short-circuit diffusion. The sample with a higher deformation degree is speculated to have a larger number of defects that provide more shortcuts for the mass transfer of SPPs, thereby facilitating a homogeneous distribution of fine SPPs during annealing.

show abstract

“…One point should be mentioned that many equiaxed grain-structured Ti-based alloys also have been reported to exhibit ultrahigh strength and good ductility. For example, equiaxed grain-structured TiNb alloys were prepared via introducing strengthening phase FeTi or CoTi 2 into b-Ti matrix and exhibited excellent mechanical properties, including high strength, good ductility, and high wear resistance [21][22][23][24][25]. Here, an equiaxed grain structure without any precipitates was formed in the annealed TiZ-rAlV alloy.…”

Section: Resultsmentioning

confidence: 99%

Tailoring Microstructure and Tribological Properties of Cold Deformed TiZrAlV Alloy by Thermal Treatment

Zhang

Guo

et al. 2017

Acta Metall. Sin. (Engl. Lett.)

View full text Add to dashboard Cite

Microstructure evolution and tribological properties of a new TiZrAlV alloy have been investigated in the present study. Various microstructures, i.e., equiaxed grain structure, dual-phase lamella structure, and heterogeneous lamellar structure, have been successfully prepared, and the effect of the microstructure on tribological properties was explored by means of cold severe plastic deformation combined with subsequent recrystallization annealing and aging treatments. The special heterogeneous lamellar-structured alloy exhibits a high ultimate tensile strength (*1545 MPa), reasonable ductility (*7.9%), and excellent wear resistance as compared with the equiaxed grain-structured and dualphase lamella-structured alloy. The present study demonstrates an alternative route for enhancing the tribological properties of alloys with heterogeneous lamellar structure.

show abstract

Ultrafine grained Ti-based composites with ultrahigh strength and ductility achieved by equiaxing microstructure

Cited by 91 publications

References 29 publications

Biomedical TiNbZrTaSi alloys designed by d-electron alloy design theory

Biomedical TiNbZrTaSi alloys designed by d-electron alloy design theory

Homogenization and Growth Behavior of Second-Phase Particles in a Deformed Zr–Sn–Nb–Fe–Cu–Si–O Alloy

Tailoring Microstructure and Tribological Properties of Cold Deformed TiZrAlV Alloy by Thermal Treatment

Contact Info

Product

Resources

About