[HTML][HTML] Alloys for application at ultra-high temperatures: Nb-silicide in situ composites: Challenges, breakthroughs and opportunities
P Tsakiropoulos - Progress in Materials Science, 2022 - Elsevier
The paper reflects on the development of Nb-silicide based alloys vis-à-vis property goals
and compares them with refractory-complex-concentrated-alloys (RCCAs) for their density …
and compares them with refractory-complex-concentrated-alloys (RCCAs) for their density …
Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes
Oxygen, one of the most abundant elements on Earth, often forms an undesired interstitial
impurity or ceramic phase (such as an oxide particle) in metallic materials. Even when it …
impurity or ceramic phase (such as an oxide particle) in metallic materials. Even when it …
Mechanical behavior of high-entropy alloys: A review
High-entropy alloys (HEAs) are materials that consist of equimolar or near-equimolar
multiple principal components but tend to form single phases, which is a new research topic …
multiple principal components but tend to form single phases, which is a new research topic …
Phase-field modeling of dislocation–interstitial interactions
The mechanical behavior of body-centered cubic (BCC) materials can be dramatically
affected by the presence of interstitial solute atoms. We present a new phase-field …
affected by the presence of interstitial solute atoms. We present a new phase-field …
Assessing the factors underlying the high yield strength of laser powder bed fusion processed niobium
The present study focuses on the factors underlying the substantially higher yield strength
(YS) and ultimate tensile strength (UTS) in laser powder bed fusion (LPBF) processed …
(YS) and ultimate tensile strength (UTS) in laser powder bed fusion (LPBF) processed …
Isothermal oxidation mechanism of Nb–Ti–V–Al–Zr alloy at 700–1200 C: Diffusion and interface reaction
J Zheng, X Hou, X Wang, Y Meng, X Zheng, L Zheng - Corrosion Science, 2015 - Elsevier
Isothermal oxidation kinetics of Nb–Ti–V–Al–Zr alloy at 700–1200° C followed a mixed
parabolic-linear law. The oxidation region consisted of an outer oxidation layer (OOL) and …
parabolic-linear law. The oxidation region consisted of an outer oxidation layer (OOL) and …
Fabrication and characterization of high-purity niobium using electron beam melting additive manufacturing technology
An advantage of electron beam melting (EBM) additive manufacturing technology is the
ability to process high-melting temperature, refractory, and/or reactive materials. This …
ability to process high-melting temperature, refractory, and/or reactive materials. This …
Niobium and other high temperature refractory metals for aerospace applications
Refractory metal alloys based on Nb, Mo, Ta, W, and Re find applications in the aerospace
industries because of their high melting points and high temperature strengths. They are …
industries because of their high melting points and high temperature strengths. They are …
Isothermal oxidation mechanism of a newly developed Nb–Ti–V–Cr–Al–W–Mo–Hf alloy at 800–1200 C
J Zheng, X Hou, X Wang, Y Meng, X Zheng… - International Journal of …, 2016 - Elsevier
Oxidation performance of a newly developed Nb–Ti–V–Cr–Al–W–Mo–Hf alloy at 800–1200°
C for 5 h in flowing air was investigated via isothermal oxidation testing, X-ray diffraction …
C for 5 h in flowing air was investigated via isothermal oxidation testing, X-ray diffraction …
Designing solid solution hardening to retain uniform ductility while quadrupling yield strength
Single-phase metals can be strengthened via cold work, grain refinement, or solid solution
hardening. But the yield strength elevation normally comes at the expense of ductility, ie, a …
hardening. But the yield strength elevation normally comes at the expense of ductility, ie, a …