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Date of Publication:2022-10-09

Journal:机械工程材料

Affiliation of Author(s):运载工程与力学学部

Volume:33

Issue:3

Page Number:98-100

ISSN No.:1000-3738

Abstract:Mechanical property test and metallographic analysis were used for
   analysis of the fracture reason of a gantry crane rail. The results
   indicate that there were some large holes around the seam between the
   conductive steel and the rail, and some transcrystalline cracks were
   found in the heat-affected zone, which formed the crack sources. Under
   the working load, these cracks sources propagated gradually, and finally
   led to fatigue fracture failure of the rail.

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