Superplasticity--Current Status and Future Potential: Symposium Held November 29-December 1, 1999, Boston, Massachusetts, U.S.A

by Berbon, Patrick B.; Bergon, Min Z.; Sakuma, Taketo; Langdon, Terence G.

• ISBN13: 9781558995093
• ISBN10: 1558995099
• Format: Hardcover
• Copyright: 2000-03-01
• Publisher: Cambridge Univ Pr

Summary

Superplasticity refers to the ability of a crystalline material to exhibit large strains when pulled in tension. This phenomenon is of academic interest, but because it provides the capability for forming complex parts from sheet metals, it also has considerable industrial potential. The incentive for organizing the symposium was the recognition that several significant developments have occurred in the field of superplasticity. New techniques have become available for the production of materials with ultrafine grain sizes, typically in the submicrometer or nanometer range. These materials provide at least the potential for utilizing superplastic forming capabilities at much faster strain rates, and thereby expanding the technology from the fabrication of low-volume, high-value components to high-volume commercial applications. The book includes topics on: superplasticity in metals and intermetallics; superplasticity in ceramics; fundamental aspects of superplasticity; superplasticity in industry; high strain rate superplasticity; and developments using severe plastic deformation.

Table of Contents

Preface	ix
Materials Research Society Symposium Proceedings	xi
SUPERPLASTICITY IN METALS AND INTERMETALLICS
*Computer Simulation of Grain Boundary Character in a Superplastic Aluminum Alloy	3	(12)
T.R. McNelley
M.T. Perez-Prado
*Superplasticity in Nb3AI/Nb In Situ Composites	15	(10)
S. Hanada
W. Fang
A Tem Study of Dynamic Continous Recrystallization in a Superplastic Al-4Mg-0.3Sc Alloy	25	(6)
L.M. Dougherty
I.M. Robertson
J.S. Vetrano
Effect of Sn Additions on Superplasticity in Al-Mg-Mn-Sc Alloys	31	(6)
C.H. Henager, Jr.
J.S. Vetrano
V.Y. Gertsman
S.M. Bruemmer
Superplastic Deformation Behavior of Zn-Al Alloys	37	(6)
Tae Kwon Ha
Hyun Woo Koo
Tae Shin Eom
Young Won Chang
Superplasticity of Nickel-Based Alloys with Micro- and Sub-Microcrystalline Structures	43	(6)
V.A. Valitov
B.P. Bewlay
Sh.Kh. Mukhtarov
O.A. Kaibyshev
M.F.X. Gigliotti
Texture Evolution During Low-Temperature Superplasticity in 5083 and 5052 Al-Mg Alloys	49	(6)
S.W. Su
I.C. Hsiao
J.C. Huang
Assessing Failure Mechanisms During Transformation Superplasticity of Ti-6Al-4V	55	(6)
C. Schuh
D.C. Dunand
Cavitation in a Uniaxially Deformed Superplastic Al-Mg Alloy	61	(6)
D.H. Bae
A.K. Ghosh
Cavitation Behavior of Coarse-Grained Al-4.5Mg Alloy Exhibiting Superplastic-Like Elongation	67	(6)
H. Iwasaki
T. Mori
H. Hosokawa
T. Tagata
M. Mabuchi
K. Higashi
Analysis of Cavitation in a Near-y Titanium Aluminide During High-Temperature/Superplastic Deformation	73	(8)
Carl M. Lombard
Amit K. Ghosh
S. Lee Semiatin
SUPERPLASTICITY IN CERAMICS
*Grain Boundary Engineering of Highly Deformable Ceramics	81	(12)
Martha L. Mecartney
Creep Deformation in a 3mol% Y2O3-Stabilized Tetragonal Zirconia	93	(6)
K. Morita
K. Hiraga
Y. Sakka
Superplasticity and Joining of Zirconia-Based Ceramics	99	(6)
F. Gutierrez-Mora
A. Dominguez-Rodriguez
M. Jimenez-Melendo
R. Chaim
G.B. Ravi
J.L. Routbort
A Discussion of Flow Mechanisms in Superplastic Yttria-Stabilized Tetragonal Zirconia	105	(6)
Min Z. Berbon
Terence G. Langdon
Creep Behavior of a Superplastic Y-TZP/Al2O3 Composite: An Examination of the Possibility for Diffusion Creep	111	(6)
Siari S. Sosa
Terence G. Langdon
*Some Aspects of Plastic Flow in Silicon Nitride	117	(8)
T. Rouxel
J. Rabier
S. Testu
X. Milhet
*Grain Boundary Structure and Sliding of Alumina Bicrystals	125	(8)
Y. Ikuhara
T. Watanabe
T. Yamamoto
T. Saito
H. Yoshida
T. Sakuma
Superplasticity of Liquid-Phase Sintered β-SiC	133	(8)
T. Nagano
K. Kaneko
G.D. Zhan
M. Mitomo
FUNDAMENTAL ASPECTS OF SUPERPLASTICITY
*Newtonian Flow in Bulk Amorphous Alloys	141	(12)
J. Wadsworth
T.G. Nieh
*Recent Developments in Superplasticity	153	(10)
S.X. McFadden
R.S. Mishra
A.K. Mukherjee
*Ceramics Superplasticity---New Properties from Atomic Level Processing	163	(6)
Fumihiro Wakai
Role of Vacancies and Solute Atoms on Grain Boundary Sliding	169	(6)
J.S. Vetrano
C.H. Henager, Jr.
E.P. Simonen
Modified Constitutive Equation of Superplasticity Including Grain Growth Rate	175	(6)
H. Miyazaki
T. Iseki
T. Yano
A Superplasticity Theory Based on Dynamic Grain Growth	181	(6)
M.J. Mayo
J.R. Seidensticker
Simulation of Microstructural Evolution During Superplastic Deformation	187	(6)
B-N. Kim
K. Hiraga
On the Relationship Between Grain Boundary Sliding and Intragranular Slip During Superplastic Deformation	193	(6)
A.D. Sheikh-Ali
J.A. Szpunar
H. Garmestani
Effects of Crystallographic Texture on Internal Stress Superplasticity Induced by Anisotropic Thermal Expansion	199	(8)
K. Kitazono
R. Hirasaka
E. Sato
K. Kuribayashi
T. Motegi
SUPERPLASTICITY IN INDUSTRY
*The Industrial Application of Aluminum Superplastic Forming	207	(16)
A.J. Barnes
Manufacturing Aluminum Sandwich Structures by Means of Superplastic Forming	223	(6)
P. Impio
J. Pimenoff
H. Hanninen
M. Heinakari
The Microstructure and Superplastic Behavior of Clean Mechanically Alloyed Titanium-Titanium Boride Alloys	229	(6)
A.P. Brown
R. Brydson
C. Hammond
A. Wisbey
T.M.T. Godfrey
*Cavity Nucleation in Al 5083 Alloys	235	(12)
N. Chandra
Z. Chen
Hyperplastic Forming: Process Potential and Factors Affecting Formability	247	(6)
Glenn S. Daehn
Vincent J. Vohnout
Subrangshu Datta
Superplastic Dome Forming of Machined Sheets	253	(8)
Nihat Akkus
Toshihiro Usugi
Masanori Kawahara
Ken-ichi Manabe
Hisashi Nishimura
HIGH STRAIN RATE SUPERPLASTICITY
Materials Design and Processings for Industrial High-Strain Rate Superplastic Forming	261	(12)
H. Hosokawa
K. Higashi
*High-Strain Rate Superplasticity in Three Contrasting Fine Grained Aluminum Alloys	273	(10)
R.I. Todd
J.S. Kim
G.H. Zahid
P.B. Prangnell
*The Effect of Fe-Addition to Al- 10Ti Alloy on Superplasticity at High-Strain Rates	283	(8)
D. Kum
W.J. Kim
*Routes to Develop Fine-Grained Magnesium Alloys and Composites for High-Strain Rate Superplasticity	291	(12)
Toshiji Mukai
Hiroyuki Watanabe
T.G. Nieh
Kenji Higashi
Flow Stress and Elongation of Superplastic Deformation in La25Al25Ni20 Metallic Glass	303	(8)
Y. Kawamura
A. Inoue
DEVELOPMENTS USING SEVERE PLASTIC DEFORMATION
*Grain Refinement of Aluminum Using Equal-Channel Angular Pressing	311	(12)
Z. Horita
M. Furukawa
M. Nemoto
T.G. Langdon
*High-Resolution EBSD Analysis of Severely Deformed Submicron Grained Aluminum Alloys	323	(12)
P.B. Prangnell
J.R. Bowen
A. Gholinia
M.V. Markushev
*SPD Processing and Superplasticity in Ultrafine-Grained Alloys	335	(12)
R.Z. Valiev
R.K. Islamgaliev
An Examination of the Deformation Process in Equal-Channel Angular Pressing	347	(6)
Patrick B. Berbon
Minoru Furukawa
Zenji Horita
Minoru Nemoto
Terence G. Langdon
Superplastic Properties of an Aluminum-Based Alloy After Equal-Channel Angular Pressing	353	(6)
Jingtao Wang
Patrick B. Berbon
Yuzhong Xu
Lizhong Wang
Terence G. Langdon
Influence of Equal-Channel Angular Pressing on the Superplastic Properties of Commercial Aluminum Alloys	359	(6)
Sungwon Lee
Terence G. Langdon
Processing by Equal-Channel Angular Pressing: Potential for Achieving Superplasticity	365	(6)
Minoru Furukawa
Minoru Nemoto
Zinji Horita
Terence G. Langdon
Author Index	371	(2)
Subject Index	373