Precipitation Hardening

Theory and Applications

By

  • J W Martin, Emeritus Reader in Physical Metallurgy, University of Oxford, UK

Precipitation Hardening (or age-hardening) is an important technique for the metal-using industries. The process is used to enhance the mechanical properties of a wide range of alloys, notably those based on aluminium, but also embracing some nickel and other non-ferrous alloys as well as certain steels. It is important that the mechanisms that produce this improvement in properties are understood so that the desired properties can be optimised. This book provides a thorough treatment and grounding in the subject for the student of materials science and engineering, as well as guidance, for those using the process in industry and in research. A number of excerpts from classic papers are included, which illustrate the development of precipitation hardening from being an art to a science.Precipitation Hardening (or age-hardening) is an important technique for the metal-using industries. The process is used to enhance the mechanical properties of a wide range of alloys, notably those based on aluminium, but also embracing some nickel and other non-ferrous alloys as well as certain steels. It is important that the mechanisms that produce this improvement in properties are understood so that the desired properties can be optimised. This book provides a thorough treatment and grounding in the subject for the student of materials science and engineering, as well as guidance, for those using the process in industry and in research. A number of excerpts from classic papers are included, which illustrate the development of precipitation hardening from being an art to a science.
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Audience

Professional: researchers, designers and other workers in the steel industry and related ancilliary industries.

 

Book information

  • Published: October 1998
  • Imprint: BUTTERWORTH HEINEMANN
  • ISBN: 978-0-7506-3885-2

Reviews

"The book offers a marvellously clear and economical exposition of the microstructure and mechanics ( including fracture ) of age hardened alloys..." "The book can be unreservedly recommended to those materials science professors who are not yet ashamed of including aspects of physical metallurgy in their teaching schedules." MATERIALS RESEARCH BULLETIN 'The book offers a marvellously clear and economical exposition of the microstructure and mechanics of age-hardened alloys.' MATERIALS WORLD



Table of Contents

The microstructure of precipitation-hardened alloys: The dispersed phases present in metals; The thermodynamics and kinetics of ageing; Characterization of microstructure of aged alloys; Quantitative metallography; Quantitative metallography. The strength of aged alloys: Alloy designations; Hardness; The tensile yield stress; Process modelling of age-hardening; Work-hardening behaviour of precipitation-hardened alloys; The achievement of strong precipitation-hardened alloys. Fracture behaviour of aged alloys: Introduction; Slip distribution in alloys containing particles; Fracture under tensile load; Failure of precipitation-hardened alloys during forming; Fatigue of precipitation-hardened alloys; Stress Corrosion. The strength of alloys at elevated temperature: Strength of microstructures where particle by-pass by dislocations operates; Yield strength of microstructures where particle shearing by dislocation operates; Creep behaviour of precipitation hardened alloys; High-temperature fracture of precipitation-hardened alloys. Appendix.