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Manufacturing technologies of sintered graded tool materials evaluated according to foresight methodology

Dobrzańska-Danikiewicz A., Kloc-Ptaszna A., Dołżańska B.

Archives of Materials Science and Engineering

2011

Vol. 50, nr 2

69-97

Purpose: The goal of this paper is to evaluate the development efficiency of conventional technologies of powder metallurgy used for graded tool materials manufacturing. The technologies were divided into three groups according to the matrix type and the percent fraction volume of components in the powders layers. Design/methodology/approach: In the framework of foresight-materials science research a foresight matrices set was created, materials science experiments using light, transmission and scanning electron microscopes, X-ray diffractometer, microhardness tester, work-stands for testing of fatigue resistance, mechanical fatigue strength, fracture toughness were conducted and technology roadmaps were prepared. Findings: Quite high potential and attractiveness of the analysed technologies against the environment, as well as good development perspectives in industry were shown. Research limitations/implications: Research concerning graded tool materials constitute a part of a larger research project aimed at identifying, researching, and characterising the priority innovative technologies in the field of materials surface engineering. Practical implications: The presented materials science results prove a manufacturing possibility of elements with ductile cores and hard coatings using conventional technologies of powder metallurgy. These technologies are recommended for practical implementation in industry, especially for cutting tools. Originality/value: The originality of this paper the value evaluation of manufacturing technologies of graded tool materials against background environment including the influence of the chemical composition and sintering conditions on the surface layers hardness.