Mo Effect on the Microstructure in Co-Al-W-Based Superalloys
p.420
p.420
High Temperature Strength of Ir/Ir2Y Two Phase Alloys in the Ir-Pt-Y System
p.424
p.424
Grain Refinement and Nuclei Formation Mechanism of Ni-Based Superalloy K417 with Low Voltage Pulsed Magnetic Casting
p.428
p.428
The Effect of Ti Addition on Phase Equilibria among Ni (A1), Ni3Al (L12) and Ni3V (D022) Phases
p.432
p.432
Microstructural Characterization of Nb-Al Base ODS Alloys
p.436
p.436
Alloying Behavior of Ni3Nb, Ni3V and Ni3Ti Compounds
p.440
p.440
Alloy Design of Nb-Si Based High Temperature Alloys by Phase Stability Control
p.444
p.444
The Stability of γ ’-Co3(Al,W) Phase in Co-Al-W Ternary System
p.448
p.448
The Effect of Alloying Elements on Microstructure and Strength Property of Dual Two-Phase Intermetallic Alloys Based on Ni3Al-Ni3V Pseudo-Binary Alloy System
p.452
p.452
Microstructural Characterization of Nb-Al Base ODS Alloys
Abstract:
Nb, Al and Y2O3 powders were mechanically alloyed together with 5 wt% stearic acid. The heavy plastic deformation of the powders by mechanical alloying led significant hardening to 970 Hv and the reduced grain size to 10 nm. Nb-Al base ODS alloys consolidated by HIP at 1500 °C and 150 MPa for 0.5 h gave the dual phase of Nb solid solution and Nb3Al compound. The oxide particles are of the hexagonal type YAlO3 (YAH), with the size of 50 nm to 200 nm. The high-temperature ductility at 1200 °C and capability of the grain growth at 2000 °C were confirmed.
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Periodical:
Materials Science Forum (Volumes 654-656)
Pages:
436-439
Citation:
Online since:
June 2010
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