Page 318 - CITS - Welder - Trade Practical

WELDER - CITS

- These samples were oriented in the transverse direction, perpendicular to the welding direction.

- Additionally, four samples were also prepared the longitudinal direction to examine the microstructure for the
presence of inclusion stringers in this orientation.
- Post-test creep-rupture and miniature-sample tensile test specimens were prepared for fractography.

- This simple technique allows topographical examination of the fracture face under the scanning electron
microscope (SEM). This was performed for both test specimens.
- Miniature sample tensile specimens were tested with a 24 mm gauge length (GL) and 3 mm diameter.
Specimens were machined from parent and weld metal regions in the transverse orientation.
- The tests were performed at room temperature (RT) and elevated temperature.
- Due to the smaller size test specimens utilized in these testing, minor modifications to the test methodologies
specified had to be implemented.
Wear protective clothing.

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CITS : CG & M - Welder - Exercise 88