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MA Effect On The Structure And The Sinter Capabilities Of Fe-Cu Metal Bond

Posted on:2007-08-07Degree:MasterType:Thesis
Country:ChinaCandidate:Z W HeFull Text:PDF
GTID:2121360182983160Subject:Materials science
Abstract/Summary:PDF Full Text Request
The energies how to be stored and changed of Fe-Cu compound powdersduring high-energy ball-milling effect on sinter capabilities of metal bond weremainly discussed in this article. In order to find out ways of stored and changeof energy during milling, XRD, DSC, SEM, EDS and sinter capabilities wereused to analyze the milled Fe-Cu compound powders, which affected the sintertemperature of metal bond and capability of products.The results of experiment showed that crystalline and grain sizes of thecompound powders were diminished gradually and crystalline lattice parameterswere increased gradually with milling. A great deal of imperfections and defectswere produced and diminishing crystalline sizes and increasing crystallinelattice parameter increased surface energies and interface energies. The resultsof DSC,SEM and EDS showed that the main resources of stored energies werefrom this changes. The sinter temperature was greatly decreased course of sinterby these stored energies.The metal Sn, 663 bronze and SiC after milling were added to Fe-Cusystem. The sinter capabilities of sample were promoted with continue millingtime. The 663 bronze and SiC additive were added to Fe45Cu45Sn10 that wasmilled, the additive should be milled some time and its quantity should beappropriated. In this time, the kinds of the capabilities were all reached maximal.It was instructional significance to produce metal integrate agent diamond tools.The experiment showed that the sinter temperature and the damnificationof diamond were greatly come down and diminished in condition of satisfyingcapabilities of diamond tools by milling. The quality,efficiency and the usinglifetime of diamond tools were promoted and prolonged.
Keywords/Search Tags:MA, compound powders, Fe-Cu, metal bond, stored energy, high-energy ball milling, sinter, diamond tools
PDF Full Text Request
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