voestalpine Böhler Welding
voestalpine Böhler Welding

Expert Creep CRAs Nickel based Alloys

2017-04-2525th - 27th Apr 2017 | Hamm, GermanyHamm, Germany

Expert Creep CRAs Nickel based Alloys

This seminar provides technical aspects concerning metallurgy which should be mastered for welding of different base materials. The application of creep resistant steels, high alloyed stainless steels including duplex and nickel-based alloys are highlighted.

​Objective

  • ​​In depth knowledge about welding of creep resistant CrMo-steels
  • Welding of CRA’s (CrNi, duplex and super duplex as well as super-austenitic steels and their welding fabrication)
  • Welding of Ni-alloys for wet and high temperature corrosion conditions
  • Workshop & discussion of case studies provided by participants

​Content

​Lectures & case studies:

Day 1

  • Design and standardization of classic (e.g. P11 and P 22) and modern creep resistant steels (e.g. P 24, P 92 or VM12)
  • Welding of classic and modern pressure vessel steels

Day 2

  • Principle aspects of corrosion / corrosion testing
  • Welding of stainless and heat-resistant steels
  • Properties and fabrication of duplex and super duplex stainless steels
  • Fabrication of dissimilar welded joints (austenitic-ferritic welds)

Day 3

  • Introduction & properties of nickel-based alloys
  • Welding of pure nickels and nickel-based alloys
  • Nickel-based alloys for cryogenic applications – case study LNG tanks
  • Cladding
  • Usage of nickel-based alloys for maintenance & repair

​Assessment Criteria

  • Preparation of case studies (predetermination requested)
  • Compulsory attendance & active participation
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