Modeling of Mechanical Properties Variations of P/M steels
The final mechanical properties of P/M parts are strongly affected by the processing parameters. Processing controls porosity, composition, and microstructure. Variations within the processing sequence lead to significant property variations. Variations in strength values are often accounted for by the publication of typical values and minimum values. Other mechanical proper-ties important for critical applications, such as tough-ness, are even more sensitive to processing. This paper discusses the use of Weibull statistics to analyze the properties of P/M parts and suggest new ways to determine property variability for design application. Examples of different properties and materials are used to illustrate the variation. The effects of processing parameters in controlling the variability are discussed. Weibull parameters are suggested as being more suitable for designers than the current system.
J. W. Newkirk and S. N. Thakur, "Modeling of Mechanical Properties Variations of P/M steels," P/M Science & Technology Briefs, vol. 5, no. 2, pp. 13-21, The University of Western Australia, Jan 2003.
Materials Science and Engineering
International Standard Serial Number (ISSN)
Article - Journal
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