A comparison of Ti–Ni and Ti-Sn binary alloys processed using powder metallurgy

Liu, Hung-Wei; Bishop, D.P.; Plucknett, Kevin P.

doi:10.1016/j.msea.2015.07.085

Cited by 28 publications

(18 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 c). Similar microstructures have been reported in the literature, for low Ni content TieNi alloys processed by spark plasma powder metallurgy technique [45]. On the other hand, the microstructures of the Cu-containing alloys {Alloy 2 (Tie13Cu) (Fig.…”

Section: Optical Microstructuressupporting

confidence: 86%

A comparison of the microstructures, thermal and mechanical properties of pressed and sintered Ti–Cu, Ti–Ni and Ti–Cu–Ni alloys intended for dental applications

Machio

Mathabathe

Bolokang

2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

The effect of Ni and Cu on the a/b phase transformation temperature, possible retention of the b-phase, and mechanical properties of Ti, Tie13Cu, Tie4.5Ni and Tie13Cue4.5Ni (compositions in wt. %) alloys were investigated. The alloys were developed using the conventional uniaxial cold press and sintering technique. The thermal properties of the sintered alloys were traced by the differential scanning calorimetry (DSC) analysis. The x-ray diffraction (XRD) and electron backscatter diffraction (EBSD) analysis determined phase composition, crystal structures and grain orientations. It has emerged that the Ti e13Cu and Tie13Cue4.5Ni retained the b-Ti phase. The mechanical properties were evaluated under tension with Tie13Cu and Tie4.5Ni possessing high ultimate tensile strength (UTS) and percentage elongation (%El) than the Tie13Cu-4.5Ni alloy. Although all the alloys have revealed the presence of porosity, its effect on mechanical properties was more on the Tie13Cue4.5Ni alloy. While the mechanical properties of Tie13Cu-4.5Ni alloy were inferior due to extensive porosity, those of Ti, Tie13Cu and Ti e4.5Ni allow them to be classified as Type 3 and Type 4 dental alloys, respectively, proving that the conventional powder metallurgy process has potential to be used as a processing technique for TieCubased dental alloys.

show abstract

Section: Optical Microstructuressupporting

confidence: 86%

A comparison of the microstructures, thermal and mechanical properties of pressed and sintered Ti–Cu, Ti–Ni and Ti–Cu–Ni alloys intended for dental applications

Machio

Mathabathe

Bolokang

2020

Journal of Alloys and Compounds

View full text Add to dashboard Cite

show abstract

“…Please note that Al is the main α stabilizing element providing the strengthening of α phase in these Ti alloys. The strengthening effect of Sn in Ti alloys is, however, much lower than that of Al [ 63 , 64 ]. The same is probably true for Zr alloys resulting in the limited strengthening of the studied alloys by Sn.…”

Section: Resultsmentioning

confidence: 99%

Novel α + β Zr Alloys with Enhanced Strength

et al. 2021

View full text Add to dashboard Cite

Low-alloyed zirconium alloys are widely used in nuclear applications due to their low neutron absorption cross-section. These alloys, however, suffer from limited strength. Well-established guidelines for the development of Ti alloys were applied to design new two-phase ternary Zr alloys with improved mechanical properties. Zr-4Sn-4Nb and Zr-8Sn-4Nb alloys have been manufactured by vacuum arc melting, thermo-mechanically processed by annealing, forging, and aging to various microstructural conditions and thoroughly characterized. Detailed Scanning electron microscopy (SEM) analysis showed that the microstructural response of the alloys is rather similar to alpha + beta Ti alloys. Duplex microstructure containing primary alpha phase particles surrounded by lamellar alpha + beta microstructure can be achieved by thermal processing. Mechanical properties strongly depend on the previous treatment. Ultimate tensile strength exceeding 700 MPa was achieved exceeding the strength of commercial Zr alloys for nuclear applications by more than 50%. Such an improvement in strength more than compensates for the increased neutron absorption cross-section. This study aims to exploit the potential of alpha + beta Zr alloys for nuclear applications.

show abstract

“…The effect of nickel powder blended with titanium or pre‐alloyed titanium alloy was also studied . As it is seen in Figure , a large improvement in the densification of titanium was obtained by addition of nickel .…”

Section: Challenges For Pm Titaniummentioning

confidence: 99%

“…In addition, a hardening effect of around 12% occurs, when 7.5 wt% of nickel is added and sintered at 1300 °C. This fact is explained by solid solution strengthening and formation of the intermetallic Ti 2 Ni …”

Section: Challenges For Pm Titaniummentioning

confidence: 99%

See 1 more Smart Citation

Powder Metallurgy Strategies to Improve Properties and Processing of Titanium Alloys: A Review

et al. 2017

View full text Add to dashboard Cite

Powder metallurgy (PM) is an attractive technology for manufacturing net-shape titanium-based components. However, it is challenging to make PM titanium products competitive in terms of mechanical properties. This article gives an overview of the current challenges in PM titanium and the best strategies to overcome them by alloying. By adding suitable alloying elements the properties of PM titanium components can be enhanced. The use of sintering aids helps to control the typical residual porosity of PM titanium alloys. Furthermore, controlling microstructure by alloying offers the possibility to go for high performance applications. Moreover, ductility is improved by adding elements that scavenge oxygen. A favorable selection of alloying elements offers a practical and competitive approach to meet the mechanical requirements in future PM titanium applications.

show abstract

A comparison of Ti–Ni and Ti-Sn binary alloys processed using powder metallurgy

Cited by 28 publications

References 26 publications

A comparison of the microstructures, thermal and mechanical properties of pressed and sintered Ti–Cu, Ti–Ni and Ti–Cu–Ni alloys intended for dental applications

A comparison of the microstructures, thermal and mechanical properties of pressed and sintered Ti–Cu, Ti–Ni and Ti–Cu–Ni alloys intended for dental applications

Novel α + β Zr Alloys with Enhanced Strength

Powder Metallurgy Strategies to Improve Properties and Processing of Titanium Alloys: A Review

Contact Info

Product

Resources

About