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Residual stresses in borieded layers

: Pruemmer, R.; Pfeiffer, W.

Journal of the less-common metals (1986), Nr.117, S.411-414 : Lit.
ISSN: 0022-5088
International Symposium on Boron, Borides, Carbides, Nitrides and Related Compounds <8, 1984, Tbilisi>
Fraunhofer IWM ()

Pure iron (Armco-iron) was borided. A 100 micrometer thick surface layer consists of FeB at the immediate surface and Fe sub B in deeper regions, followed by a diffusion layer. X-ray stress analysis proves to be an appropriate method to determine the residual stresses non-destructively. At the surface a residual compressive stress of 600 MPa is found. Its variation with depth below the surface is determined.