NDLI: Correlation of microstructure with the wear resistance and fracture toughness of white cast iron alloys

Content Provider	Springer Nature Link
Author	Filipovic, M. Kamberovic, Z. Korac, M. Gavrilovski, M.
Copyright Year	2013
Abstract	The objective of this investigation was to set down (on the basis of the results obtained by the examination of white cast iron alloys with different contents of alloying elements) a correlation between chemical composition and microstructure, on one hand, and the properties relevant for this group of materials, i.e., wear resistance and fracture toughness, on the other. Experimental results indicate that the volume fraction of the eutectic carbide phase (M$_{3}$C or M$_{7}$C$_{3}$) have an important influence on the wear resistance of white iron alloys under low-stress abrasion conditions. Besides, the martensitic or martensite-austenitic matrix microstructure more adequately reinforced the eutectic carbides, minimizing cracking and removal during wear, than did the austenitic matrix. The secondary carbides which precipitate in the matrix regions of high chromium iron also influence the abrasion behaviour. The results of fracture toughness tests show that the dynamic fracture toughness in white irons is determined mainly by the properties of the matrix. The high chromium iron containing 1.19 wt% V in the as-cast condition, showed the greater fracture toughness when compared to other experimental alloys. The higher toughness was attributed to strengthening during fracture, since very fine secondary carbide particles were present mainly in an austenitic matrix.
Starting Page	473
Ending Page	481
Page Count	9
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	19
Issue Number	3
e-ISSN	20054149
Language	English
Publisher	The Korean Institute of Metals and Materials
Publisher Date	2013-05-10
Publisher Place	Springer
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	alloys casting toughness transmission electron microscopy wear Metallic Materials Operating Procedures, Materials Treatment Magnetism, Magnetic Materials Engineering Thermodynamics, Heat and Mass Transfer Characterization and Evaluation of Materials Continuum Mechanics and Mechanics of Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

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