TWI training courses in 2005

Citation

(2005), "TWI training courses in 2005", Anti-Corrosion Methods and Materials, Vol. 52 No. 1. https://doi.org/10.1108/acmm.2005.12852aac.003

TWI training courses in 2005

TWI training courses in 2005

Keywords: Training, Metals, Corrosion

C-Mn and low alloy steels

Course content: Structure of metals; basic phase diagrams; influence of alloying elements; properties of welded joints; weldability of steels – mild and low alloy; use of carbon equivalent formulae; metallurgical defects; cracking mechanisms and control; effects of preheat and/or post-weld heat treatment.

Objectives are as follows:

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  to understand the role of metallurgy in welding technology;

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  to appreciate the effect of alloying elements on material properties;

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  to identify weldability problems in typical carbon and low alloy steels;

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  to understand the causes and significance of metallurgical defects in welds; and

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  to appreciate requirements of preheat and post-weld heat treatment procedures.

28 February (Middlesbrough), 26 September (Abington), 3 November (Sheffield), 15 November (Wales).

Stainless steels

Course content: Basic metallurgy and properties of stainless steel; corrosion and oxidation resistance; weldability of highly corrosion resistant grades (duplex, super duplex and high alloy austenitics); weldability of conventional stainless steels (austenitic, ferritic and martensitic); avoidance of weld defects; use of Schaeffler diagram for dissimilar joints; measurements of ferrite levels and ferrite number (FN); weld overlaying and welding clad steels; degradation of stainless steels (pitting, crevice corrosion and stress corrosion cracking); practical considerations for welding stainless steels.

Objectives are as follows:

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  to appreciate the influence of composition on stainless steel properties;

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  to understand various weldability problems of different grades;

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  to identify welding conditions necessary to achieve optimum weld area corrosion resistance;

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  to recognise how stainless steel corrosion resistance can be degraded;

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  to apply knowledge to welding of dissimilar joints and weld overlays; and

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  to appreciate practical implications of welding stainless steels.

1 March (Middlesbrough), 4 November (Sheffield), 16 November (Wales).

Introduction to failure analysis

Course content: Identification of types of failure (cracks and other defects, shape defects, separation under load, corrosion and creep); viewing of specimens (fracture surfaces, metallurgical defects, shape defects); methods of analysis (visual, NDT, macros, micros, composition, corrosion); back-up analysis (documentation, site inspection, static and dynamic stressing, fatigue assessment, low temperature brittle fracture).

Objectives are as follows:

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  to recognise and understand failure modes as discussed;

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  to plan an investigation to determine the cause of failure; and

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  to appreciate some of the methods of failure prevention.

Subject to availability.