The interface between metallurgy and mechanics in material performance

This paper considers an important topic, and one that is often poorly understood or misinterpreted, but which is a determining factor in many aspects of the service performance of metals (and other materials). Engineering components and structures must, of necessity, provide a bridge between the ma...

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Main Authors: M. Newby, M. N. James
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2010-10-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero14/numero_14_art_1.pdf
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author M. Newby
M. N. James
author_facet M. Newby
M. N. James
author_sort M. Newby
collection DOAJ
description This paper considers an important topic, and one that is often poorly understood or misinterpreted, but which is a determining factor in many aspects of the service performance of metals (and other materials). Engineering components and structures must, of necessity, provide a bridge between the macroscopic, homogeneous and generally continuum aspects of applied load and displacement, and the microscopic, heterogeneous and often non-continuum reality of material structure and behaviour. This bridge can take the form of a genuine interface between material and environment, e.g. at a surface, or can be a virtual one where the differing philosophies of design have to be merged. The interface has particular importance in circumstances where environmental influences have a key role in determining performance characteristics (e.g. creep, environmentally-assisted cracking, or corrosion), where performance is dominated by fatigue or fracture, where welding is used to join components, or where tribology plays a role. The paper focuses on the problems associated with cracking and uses case study examples drawn from engineering practice to illustrate the role of metallurgical factors in mechanical performance of materials.
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institution Kabale University
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series Fracture and Structural Integrity
spelling doaj-art-362867de56a44074aa71ba3c4f2a5e112025-01-02T22:38:30ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932010-10-01414516The interface between metallurgy and mechanics in material performanceM. NewbyM. N. JamesThis paper considers an important topic, and one that is often poorly understood or misinterpreted, but which is a determining factor in many aspects of the service performance of metals (and other materials). Engineering components and structures must, of necessity, provide a bridge between the macroscopic, homogeneous and generally continuum aspects of applied load and displacement, and the microscopic, heterogeneous and often non-continuum reality of material structure and behaviour. This bridge can take the form of a genuine interface between material and environment, e.g. at a surface, or can be a virtual one where the differing philosophies of design have to be merged. The interface has particular importance in circumstances where environmental influences have a key role in determining performance characteristics (e.g. creep, environmentally-assisted cracking, or corrosion), where performance is dominated by fatigue or fracture, where welding is used to join components, or where tribology plays a role. The paper focuses on the problems associated with cracking and uses case study examples drawn from engineering practice to illustrate the role of metallurgical factors in mechanical performance of materials.http://www.gruppofrattura.it/pdf/rivista/numero14/numero_14_art_1.pdfContinuum mechanicsnon-continuum materialsmetallurgical parameterscase studiesfatiguefractureenvironment
spellingShingle M. Newby
M. N. James
The interface between metallurgy and mechanics in material performance
Fracture and Structural Integrity
Continuum mechanics
non-continuum materials
metallurgical parameters
case studies
fatigue
fracture
environment
title The interface between metallurgy and mechanics in material performance
title_full The interface between metallurgy and mechanics in material performance
title_fullStr The interface between metallurgy and mechanics in material performance
title_full_unstemmed The interface between metallurgy and mechanics in material performance
title_short The interface between metallurgy and mechanics in material performance
title_sort interface between metallurgy and mechanics in material performance
topic Continuum mechanics
non-continuum materials
metallurgical parameters
case studies
fatigue
fracture
environment
url http://www.gruppofrattura.it/pdf/rivista/numero14/numero_14_art_1.pdf
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