High Temperature Aluminides and Intermetallics : Proceedings of the 2nd International ASM Conference on High Temperature Aluminides and Intermetallics, September 16-19 1991, San Diego, Ca, USA

by Whang, S. H.; Pope, D. P.; Liu, C. T.

• ISBN13: 9781851668229
• ISBN10: 1851668225
• eBook ISBN(s): 9781483292571
• Edition: Reprint
• Format: Hardcover
• Copyright: 1993-08-01
• Publisher: Elsevier Science Ltd
• More Book Details

Table of Contents

Preface
A first-principles study of phase stability in Ni-Al and Ni-Ti alloys	p. 1
Thermodynamic calculation of the ternary Ti-Al-Nb system	p. 9
Planar defect energies by the embedded atom method and dissociated superdislocation configurations in the L1[subscript 0]-type TiAl compound	p. 18
Design of Al[subscript 3](Ti, V, Zr) systems through phase stability calculations	p. 26
The phase transformations in alloys based on titanium aluminides Ti[subscript 3]Al-V and TiAl-V	p. 31
Effect of vanadium on elevated temperature phase relations in titanium aluminides containing 44 at.% Al	p. 37
Intermetallic Ti-Al-Nb alloys based on strengthening of the orthorhombic phase by [omega]-type phases	p. 41
Influence of an increasing content of molybdenum on phase transformations of Ti-Al-Mo aluminides - relation with mechanical properties	p. 48
Study of phase stability in Ti-Al-X systems at high temperatures	p. 54
Thermal evidence for the structural instability in Ni[subscript 3]Al alloys	p. 60
Phase relations in TiAl[subscript 2]-based ternary titanium aluminides of iron or nickel	p. 67
Phase stability in Be-Nb and Be-Nb-Zr intermetallics	p. 76
The effect of orientation and lamellar structure on the plastic behavior of TiAl crystals	p. 81
An atomistic study of dislocations and their mobility in a model DO[subscript 22] alloy	p. 89
An atomistic study of the dislocation core structures and mechanical behavior of a model DO[subscript 19] alloy	p. 95
Atomistic modeling of dislocations in Be[subscript 12]X compounds	p. 103
Improvement in ductility of Ni[subscript 3]Al by [gamma] former doping	p. 108
Mechanical properties of advanced nickel aluminides	p. 114
Behaviour of boron in poly- and monocrystalline Ni[subscript 3]Al and its effect on strength at room and high temperature	p. 120
Bend ductility, creep strength and physical properties of extruded chromium-modified Al[subscript 3]Ti	p. 126
Structure/property observations for Al-Ti-Cr alloys near the cubic (Al, Cr)[subscript 3] Ti phase	p. 132
The strength and ductility of Ni[subscript 3]Ge with and without boron	p. 138
Effects of test environment and grain size on the tensile properties of L1[subscript 2]-ordered (Co, Fe)[subscript 3]V alloys	p. 146
Room temperature deformation of CoSi[subscript 2] single crystals	p. 153
Deformation mechanisms and ductility of mechanically alloyed NiAl	p. 160
Strength properties and enhanced plasticity of intermetallic Ti-Al-(CrSi) alloys	p. 166
Studies of vacancies and dislocations in TiAl by positron annihilation	p. 173
Dissociation of superdislocations in single crystal L1[subscript 0]Ti-Al-V compounds	p. 182
The strain field and work-hardening from antiphase boundary tubes in ordered alloys	p. 189
Dislocation structures and mechanisms of strain hardening in cyclically deformed Ni[subscript 3]Al + B single crystals	p. 195
Microstructures of Nb-26Ti-48Al + (Nb, Ti)B	p. 202
A transmission electron microscopy study of dislocation structures in a directionally solidified Ni[subscript 3]Al-based alloy deformed at [actual symbol not reproducible]	p. 208
Mechanical behavior of ion-irradiated ordered intermetallic compounds	p. 212
Three-phase [actual symbol not reproducible] alloys for high temperature use	p. 227
On charge density determinations in intermetallics by quantitative convergent beam electron diffraction	p. 237
Primary dendrite arm spacings and tip radii in directionally solidified Ni[subscript 3]Al	p. 240
Microstructure of precipitation strengthened Ni[subscript 3]Al and TiAl	p. 247
Effect of boron in two-phase (NiAl + Ni[subscript 3]Al) alloy	p. 253
The effect of annealing on Ni-Al-Fe B2 compounds	p. 258
Microstructures and mechanical behaviors of Ni-Al-Fe intermetallic compounds	p. 264
Microstructural evolution and tensile properties of titanium-rich TiAl alloy	p. 269
Microstructural evaluation of as-solidified and heat treated [gamma]-TiAl based powders	p. 277
Homogeneity and mechanical properties of TiAl	p. 283
Microstructures and properties of high melting point intermetallic Ti[subscript 5]Si[subscript 3] and TiSi[subscript 2] compounds	p. 288
Microstructure and phase evolution in rapidly-solidified Ti-24Al-11Nb	p. 295
Effect of heat treatment on microstructure and microhardness of spot welds in Ti-26Al-11Nb	p. 304
The microstructure and mechanical properties of the intermetallic compounds Super Alpha 2	p. 310
Microstructure and tensile properties of a Ti[subscript 3]Al-Nb-Mo-V alloy	p. 317
Microstructural characterization of precipitates formed during high temperature testing and processing of iron-aluminide alloys	p. 322
Abnormal grain growth in textured FeAl intermetallics	p. 335
Age hardening behavior of a hypo-stoichiometric Fe[subscript 3]Al intermetallic compound	p. 341
Microstructure of Nb[subscript 2]Al-NbAl[subscript 3] eutectic alloys produced by unidirectional solidification	p. 349
New concepts of analyzing plastic deformation of TiAl and Ni[subscript 3]Al intermetallic compounds	p. 356
Mechanical properties of boron-doped directionally-solidified Ni[subscript 3]Al containing carbon, magnesium, calcium and rare earth elements	p. 364
The role of hot-working on the microstructure and mechanical properties of the L1[subscript 2] type manganese-modified Al[subscript 3]Ti alloy	p. 370
Improvement of hot workability of Ni[subscript 3]Al-Cr-Zr-B ordered alloy	p. 377
Elevated temperature behavior of Fe[subscript 3]Al with chromium additions	p. 382
The negative temperature dependence of yield strength in the L1[subscript 2] compound Fe[subscript 3]Ge	p. 387
Effect of copper alloying on the deformation behavior of B2 NiAl intermetallic compounds	p. 392
High temperature strength of niobium aluminide intermetallics	p. 398
Evaluation of refractory intermetallics with A15 structure for high temperature structural applications	p. 402
High temperature evaluation of topologically close packed intermetallics	p. 410
Elevated temperature mechanical properties of Be[subscript 12]Nb	p. 416
A study of long-term stability of Ti[subscript 3]Al-Nb-V-Mo alloy	p. 422
Creep in titanium aluminides	p. 427
Different origins of grain size and composition effects on creep in TiAl	p. 433
The effect of reinforcement size on the creep strength of intermetallic matrix composites	p. 438
Creep behaviour of dual-phase intermetallics based on (Ti, Nb)[subscript 3](Al, Si) and (Ti, Nb)[subscript 5](Si, Al)[subscript 3]	p. 444
Alloy modification of [gamma]-base titanium aluminide for improved oxidation resistance, creep strength and fracture toughness	p. 451
Superplastic behavior of regular [actual symbol not reproducible] and super [actual symbol not reproducible] titanium aluminides	p. 457
Superplasticity in a nickel silicide alloy - microstructural and mechanical correlations	p. 465
Cleavage fracture of ordered intermetallic alloys	p. 470
Fatigue crack propagation resistance of ductile TiNb-reinforced [gamma]-TiAl intermetallic matrix composites	p. 479
Elevated temperature crack growth resistance of TiAl under monotonic and cyclic loading	p. 486
Frequency and hold time effects on crack growth of Ti-24Al-11Nb at high temperature	p. 493
Microstructure and crack-shape effects on the growth behavior of small fatigue cracks in Ti-24Al-11Nb	p. 499
Sub-critical crack growth in a Ti[subscript 3]Al based aluminide at elevated temperatures	p. 508
Elevated temperature fatigue behavior of SCS-6/Ti-24Al-11Nb	p. 514
The effect of casting temperature on the fatigue properties of cast nickel aluminide alloys	p. 520
The effect of niobium additions on the fracture of Ni-19Si-based alloys	p. 525
Fatigue and fracture of a Ni[subscript 2]Cr ordered intermetallic alloy	p. 532
Elevated-temperature environmental embrittlement and alloy design of L1[subscript 2] ordered intermetallics	p. 538
The oxidation behavior of intermetallic compounds	p. 548
Diffusional transport and predicting oxidative failure during cyclic oxidation of [beta]-NiAl alloys	p. 561
Oxidation behavior of a NiAl/TiB[subscript 2] intermetallic composite	p. 567
Behavior of iron aluminides in oxidizing and oxidizing/sulfidizing environments	p. 573
Effects of hydrogen in titanium aluminide alloys	p. 578
Oxide properties of a [gamma]-titanium: a surface science study	p. 584
Effect of silicon and niobium on oxidation resistance of TiAl intermetallics	p. 591
Oxidation and mechanical behavior of intermetallic alloys in the Ti-Nb-Al ternary system	p. 597
Cyclic oxidation resistance of an intermetallic compound TiAl	p. 602
The initial oxidation of [actual symbol not reproducible] and [gamma] (TiAl) titanium aluminide alloys	p. 608
Evaluation of the environmentally assisted cracking of aluminide intermetallic compounds	p. 613
Mechanical behavior of a fiber reinforced Ni[subscript 3]Al matrix composite	p. 619
Micromodelling of crack growth in fibre reinforced composites	p. 628
The mechanical properties of an [actual symbol not reproducible] particulate-reinforced composite	p. 635
Producing Ni[subscript 3]Al matrix composite material by vacuum hot pressing and heat treatment of nickel-plated aluminum sheets with Al[subscript 2]O[subscript 3] fiber	p. 641
Microstructure and elevated temperature behavior of a spray-atomized and co-deposited Ni[subscript 3]Al/SiC/TiB[subscript 2] intermetallic matrix composite	p. 646
Interfacial behavior in Ni[subscript 3]Al/TiB[subscript 2] intermetallic matrix composite	p. 654
Interaction of tantalum with reinforcements in [gamma]TiAl	p. 662
On the toughness and creep behavior of fiber reinforced MoSi[subscript 2] intermetallics	p. 668
Synthesis, processing and properties of nanophase aluminide	p. 676
Nanocrystalline intermetallic compounds - structure and mechanical properties	p. 679
Mechanical alloying of FeAl with Y[subscript 2]O[subscript 3]	p. 684
Synthesis of Al/Al[subscript 3]Ti two-phase alloys by mechanical alloying	p. 691
Improvement of ductility of NiAl at room temperature and manufacturing of NiAl-TiB[subscript 2] composites by melt spinning	p. 696
Combustion synthesis of intermetallic compounds using titanium, nickel and copper wires	p. 700
Reaction processing of iron aluminides	p. 706
Processing of nickel aluminides and their industrial applications	p. 712
Development of castable TiAl alloy for turbine components	p. 722
The effects of HIP processing microstructure and phase relations in [actual symbol not reproducible] titanium aluminides	p. 726
Author Index	p. 736
Subject Index	p. 738
Table of Contents provided by Blackwell. All Rights Reserved.