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Liquid metal embrittlement of steel with a coating obtained by batch hot dip method in a Zn + 2% Sn bath

  • Silesian University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

21 Citations (Scopus)

Abstract

The article presents investigation of steel subjected to external stress during hot-dip metallization. The results of experimental investigations of the LME phenomenon, reasons of its formation and influence of different parameters are described. Samples made of C70D steel subjected to various loads inducing tensile stress (400-800 MPa) during hot dip metallization in a zinc bath with 2% tin addition were investigated. The processes of hot dip metallization were carried out at 450°C temperature and immersion time of 180 s. It can be observed that the stress value can affect the behaviour of metal during the hot dip metallization process. Coated samples were analysed on a light microscope to specify the possibility of the occurrence of LME. These studies provided the basis for the selection of samples and areas for further quantitative and qualitative analysis on a scanning electron microscope (SEM) with a microanalysis system. The analysis of cracks in three microareas revealed that the tin content in the front of a fracture is twice as big as it is in other measuring points. It may be related to crack propagation due to the phenomenon of LME, by the accumulation of the initiating element atoms and those propagating the fracture.

Original languageEnglish
Title of host publicationTechnologies and Properties of Modern Utility Materials XXI
PublisherTrans Tech Publications Ltd.
Pages107-110
Number of pages4
ISBN (Print)9783037859452
DOIs
Publication statusPublished - 2014
Event21st Conference on Technologies and Properties of Modern Utility Materials, TPMUM 2013 - Katowice, Poland
Duration: 17 May 2013 → 17 May 2013

Publication series

NameSolid State Phenomena
Volume212
ISSN (Print)1012-0394

Conference

Conference21st Conference on Technologies and Properties of Modern Utility Materials, TPMUM 2013
Country/TerritoryPoland
CityKatowice
Period17/05/13 → 17/05/13

Keywords

  • Embrittlement
  • Galvanizing
  • LMAC
  • LME
  • Zn coating

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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