Increasing of toughness of brittle type S690 HSS weld metal by application of reversible temper embrittlement (RTE)

Horst-Hannes Cerjak, Ozan Caliskanoglu, Norbert Enzinger, Gunter Figner, Milan Pudar

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Weld deposits from advanced high-strength steel constructions may suffer from severe embrittlement reactions caused by non-qualified PWHT procedures. This effect, if not detected, can lead to catastrophic brittle failure of the component. A temper embrittlement reaction in the weld deposit was detected as root cause of this effect. By qualified application of reversible temper embrittlement (RTE) treatment, characterized by a short-time heat treatment at about 600 °C, the toughness of the embrittled weld material can be significantly recovered. Basic investigations were performed to explain the embrittlement as well as the de–embrittlement effect. Examples of successful RTE application on embrittled welds are given.
Original languageEnglish
Pages (from-to)1-5
JournalWelding in the World
DOIs
Publication statusPublished - 25 Nov 2016

Fields of Expertise

  • Mobility & Production
  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Experimental
  • Application

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