Micromechanics of Interfaces in Metal Matrix Composites PDF Download
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Author: William W. Gerberich
Publisher:
ISBN:
Category :
Languages : en
Pages : 69
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Book Description
The mechanical properties of the interfaces in an Al2O3 fiber reinforced beta-2lS titanium have been evaluated by using fiber pushout tests. The Al2O3 fibers were coated with a refractory metal and Y2O3 which served as a diffusion barrier during the HIPing used to produce the metal matrix composites. By doing fiber pushout tests the interfacial fracture was found to occur at the interface between the refractory metal and the H2O3. The interfacial shear strength and interfacial frictional stress were measured to be 323 and 312 + or - 2 MPa, respectively. The interfacial frictional stress, which is due to asperity interlocking during the fiber sliding, was correlated to the surface roughness of the coated Al2O3 fiber obtained with the aid of an atomic force microscope. The measured surface roughness of 18.8 + or - 2.2 nm was related to the frictional stress through Hutchinson's model. The frictional coefficient between the Al2O3 fiber and the Ti matrix calculated to be 0.32 + or - 0.02.
Author: William W. Gerberich
Publisher:
ISBN:
Category :
Languages : en
Pages : 69
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Book Description
The mechanical properties of the interfaces in an Al2O3 fiber reinforced beta-2lS titanium have been evaluated by using fiber pushout tests. The Al2O3 fibers were coated with a refractory metal and Y2O3 which served as a diffusion barrier during the HIPing used to produce the metal matrix composites. By doing fiber pushout tests the interfacial fracture was found to occur at the interface between the refractory metal and the H2O3. The interfacial shear strength and interfacial frictional stress were measured to be 323 and 312 + or - 2 MPa, respectively. The interfacial frictional stress, which is due to asperity interlocking during the fiber sliding, was correlated to the surface roughness of the coated Al2O3 fiber obtained with the aid of an atomic force microscope. The measured surface roughness of 18.8 + or - 2.2 nm was related to the frictional stress through Hutchinson's model. The frictional coefficient between the Al2O3 fiber and the Ti matrix calculated to be 0.32 + or - 0.02.
Author: Subra Suresh
Publisher: Elsevier
ISBN: 0080523714
Category : Technology & Engineering
Languages : en
Pages : 353
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Book Description
`Metal-Matrix Composites' are being used or considered for use in a variety of applications in the automotive, aerospace and sporting goods industries. This book contains sixteen chapters, all written by leading experts in the filed, which focus on the processing, microstructure and characterization, mechanics and micromechanics of deformation, mechanics and micromechanics of damage and fracture, and practical applications of a wide variety of metal composites.A particularly noteworthy feature of this authoritative volume is its collection of state-of-the-art reviews of the relationships among processing, microstructural evolution, micromechanics of deformation and overall mechanical response.
Author: Arthur G. Metcalfe
Publisher: Elsevier
ISBN: 1483216675
Category : Technology & Engineering
Languages : en
Pages : 436
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Book Description
Interfaces in Metal Matrix Composites, Volume 1 presents the position of the science of interfaces, as well as the necessary background for the effort in progress to apply these materials. The book discusses the mechanical and physical aspects of the interface; the effect of the interface on longitudinal tensile properties; and the effect of the filament-matrix interface on off-axis tensile strength. The text also describes the role of the interface on elastic-plastic composite behavior; the effect of interface on fracture; and the interfaces in oxide reinforced metals and in directionally solidified eutectics. The effect of impurity on reinforcement-matrix compatibility is also considered. Metallurgical engineers and people involved in the study of materials science will find the book invaluable.
Author: George Voyiadjis
Publisher: Elsevier
ISBN: 1483290441
Category : Technology & Engineering
Languages : en
Pages : 358
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Book Description
This book contains fifteen papers based on the presentations made at the symposium on "Inelasticity and Micromechanics of Metal Matrix Composites" held at the University of Washington, USA, in mid-1994. The papers represent the most recent work conducted on inelasticity and micromechanics of metal matrix composites. The book is divided into two parts: Part I deals with the study of inelastic deformation in metal matrix composites, while Part II tackles the micromechanical aspects of metal matrix composites. The articles discuss different aspects of these two topics ranging from purely theoretical treatments to extensive experimental investigations. Many of the papers are by prominent researchers working in this area.
Author: Siegfried Schmauder
Publisher: Springer Science & Business Media
ISBN: 3540786783
Category : Technology & Engineering
Languages : en
Pages : 432
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Book Description
The strength of metallic materials determines the usability and reliability of all the machines, tools and equipment around us. Yet, the question about which mechanisms control the strength and damage resistance of materials and how they can be optimised remains largely unanswered. How do real, heterogeneous ma- rials deform and fail? Why can a small modification of the microstructure increase the strength and damage resistance of materials manifold? How can the strength of heterogeneous materials be predicted? The purpose of this book is to present different experimental and computational analysis methods of micromechanics of damage and strength of materials and to demonstrate their applications to various micromechanical problems. This book summarizes at a glance some of the publications of the Computational Mechanics Group at the IMWF/MPA Stuttgart, dealing with atomistic, micro- and meso- chanical modelling and experimental analysis of strength and damage of metallic materials. In chapter 1, the micromechanisms of damage and fracture in different groups of materials are investigated experimentally, using direct observations and inverse analysis. The interaction of microstructural elements with the evolving damage is studied in these experiments. Chapter 2 presents different approaches to the - cromechanical simulation of composite materials: embedded unit cells, multiphase finite elements and multiparticle unit cells. Examples of the application of these models to the analysis of deformation and damage in different materials are given. Chapter 3 deals with the methods of numerical modelling of damage evolution and crack growth in heterogeneous materials.
Author: Carlo G. Pantano
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 392
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Book Description
The symposium, held in Boston, November 1989, focuses on tailoring of an interface to optimize the adhesion or transfer of load between reinforcing phases and the matrix, to enhance crack deflection through debonding, or to control interface reactivity. Some of the papers also address the micromechanics, chemistry, and characterization of interfaces in general. Acidic paper. Annotation copyrighted by Book News, Inc., Portland, OR
Author: George Dvorak
Publisher: Springer
ISBN: 9789400741027
Category : Technology & Engineering
Languages : en
Pages : 442
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Book Description
This book presents a broad exposition of analytical and numerical methods for modeling composite materials, laminates, polycrystals and other heterogeneous solids, with emphasis on connections between material properties and responses on several length scales, ranging from the nano and microscales to the macroscale. Many new results and methods developed by the author are incorporated into the rich fabric of the subject, which has developed from the work of many researchers over the last 50 years. Among the new results, the book offers an extensive analysis of internal and interface stresses caused by eigenstrains, such as thermal, transformation and inelastic strains in the constituents, which often exceed those caused by mechanical loads, and of inelastic behavior of metal matrix composites. Fiber prestress in laminates, and modeling of functionally graded materials are also analyzed. Furthermore, this book outlines several key subjects on modeling the properties of composites reinforced by particles of various shapes, aligned fibers, symmetric laminated plates and metal matrix composites. This volume is intended for advanced undergraduate and graduate students, researchers and engineers interested and involved in analysis and design of composite structures.
Author: N. R. Adsit
Publisher: ASTM International
ISBN: 0803109679
Category : Alloys
Languages : en
Pages : 445
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Book Description
Author: Shankar Mall
Publisher: CRC Press
ISBN: 1000725472
Category : Technology & Engineering
Languages : en
Pages : 482
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Book Description
A review and summary of advancements related to mechanical behavior and related mechanics issues of titanium matrix composites (TMCs), a class of high-temperature materials useful in the propulsion and airframe components in advanced aerospace systems. After an introduction to TMCs, different authors review and summarise the advancements related to mechanical behavior and related mechanics issues of TMCs.
Author: Arthur G. Metcalfe
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 0
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Book Description
