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发表时间：2022-10-09

发表刊物：机械工程材料

所属单位：运载工程与力学学部

卷号：33

期号：3

页面范围：98-100

ISSN号：1000-3738

摘要：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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