Advances in powder metallurgy

Advances in powder metallurgy
Author: H. Danninger
Publisher: Elsevier Inc. Chapters
Total Pages: 68
Release: 2013-08-31
Genre: Technology & Engineering
ISBN: 012808863X

The most prominent features of powder metallurgy (PM) materials are their fine and regular microstructure and in many cases their porosity. Here, it is shown how the porosity changes with manufacturing parameters in sintered materials and how preparation has to be done to avoid artefacts. The matrix microstructures, with regard to the alloying technique and resulting element distribution, and the microstructural development during sintering of powder injection moulded products are described. The fine homogeneous microstructure is a typical feature of fully dense PM materials as shown for tool steels and hard metals. The pronounced effect of doping elements on microstructural stability is presented for PM refractory metals.

Advances in Powder Metallurgy

Advances in Powder Metallurgy
Author: Isaac Chang
Publisher: Elsevier
Total Pages: 624
Release: 2013-08-31
Genre: Technology & Engineering
ISBN: 085709890X

Powder metallurgy (PM) is a popular metal forming technology used to produce dense and precision components. Different powder and component forming routes can be used to create an end product with specific properties for a particular application or industry. Advances in powder metallurgy explores a range of materials and techniques used for powder metallurgy and the use of this technology across a variety of application areas. Part one discusses the forming and shaping of metal powders and includes chapters on atomisation techniques, electrolysis and plasma synthesis of metallic nanopowders. Part two goes on to highlight specific materials and their properties including advanced powdered steel alloys, porous metals and titanium alloys. Part three reviews the manufacture and densification of PM components and explores joining techniques, process optimisation in powder component manufacturing and non-destructive evaluation of PM parts. Finally, part four focusses on the applications of PM in the automotive industry and the use of PM in the production of cutting tools and biomaterials. Advances in powder metallurgy is a standard reference for structural engineers and component manufacturers in the metal forming industry, professionals working in industries that use PM components and academics with a research interest in the field. Discusses the forming and shaping of metal powders and includes chapters on atomisation techniques Highlights specific materials and their properties including advanced powdered steel alloys, porous metals and titanium alloys Reviews the manufacture and densification of PM components and explores joining techniques

Metallic Powders for Additive Manufacturing

Metallic Powders for Additive Manufacturing
Author: Enrique J. Lavernia
Publisher: John Wiley & Sons
Total Pages: 613
Release: 2024-02-02
Genre: Technology & Engineering
ISBN: 1119908132

Metallic Powders for Additive Manufacturing Overview of successful pathways for producing metal powders for additive manufacturing of high-performance metallic parts and components with tailored properties Metallic Powders for Additive Manufacturing introduces the readers to the science and technology of atomized metal powders beyond empirical knowledge and the fundamental relationships among the chemistry, microstructure, and morphology of atomized metallic powders and their behavior during additive manufacturing. The text sets a foundation of the underlying science that controls the formation and microstructure of atomized metallic droplets, including the relations among the properties of metallic powders, their performance during the manufacturing processes, and the resulting products. Other topics covered include the influence of powder on defect formation, residual stress, mechanical behavior, and physical properties. The concluding two chapters encompass considerations of broader societal implications and overarching themes, including the exploration of alternative feedstock materials, economic analysis, and sustainability assessment. These chapters offer valuable perspectives on the prospective trajectory of the field. Written by a team of experienced and highly qualified professors and academics, Metallic Powders for Additive Manufacturing includes information on: Atomization techniques such as Vacuum Induction Gas Atomization (VIGA), Electrode Induction Melting Gas Atomization (EIMGA), and Plasma Rotating Electrode Process (PREP) Atomization science and technology, covering control of atomization parameters, powder size distribution, effect of processing variables, and theoretical models of atomization Heat transfer and solidification of droplets, covering nucleation, microstructure development, and important thermal and solidification conditions during atomization Atomization of Al, Fe, Ni, Co, Ti, and high entropy alloys, as well as composite powders for additive manufacturing, and guidelines for atomization equipment and powder handling Fundamental processing principles in a variety of metal additive manufacturing processes Powder characteristics and requirements for different additive manufacturing processes Effect of powder chemistry and physical characteristics on additive manufacturing processes, and the microstructure and properties of the built parts Evaluation of alternative feedstock sources for metal additive manufacturing, beyond gas atomized powder Economic and sustainability perspectives on powder production and additive manufacturing Metallic Powders for Additive Manufacturing is an excellent combination of rigorous fundamentals and a practice-oriented and forward-looking resource on the subject for materials scientists and practicing engineers seeking to understand, optimize, and further develop the field of powder production and additive manufacturing.

Powder Metallurgy

Powder Metallurgy
Author: P. Ramakrishnan
Publisher: New Age International
Total Pages: 40
Release: 2007
Genre: Automobiles
ISBN: 8122420303

Papers presented at the International Conference on Powder Metallurgy for Automotive and Engineering Industry, held at Mumbai during 3-6 February 2005.