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Questions and Answers
Which process refers to the controlled heating and cooling of metals to alter their physical and mechanical properties?
Which process refers to the controlled heating and cooling of metals to alter their physical and mechanical properties?
- Post weld heat treatment
- Stress relieving
- Heat Treatment (correct)
- PWHT
What is the purpose of PWHT (Post Weld Heat Treatment)?
What is the purpose of PWHT (Post Weld Heat Treatment)?
- To relax the stresses locked in a welded structure
- To improve the mechanical and chemical properties of the machined surfaces (correct)
- To alter the physical and mechanical properties of metals
- To decrease the potential for hydrogen-induced cracking
When is stress relief heat treatment applied?
When is stress relief heat treatment applied?
- To decrease the potential for hydrogen-induced cracking
- To relax the stresses locked in a welded structure (correct)
- To improve the mechanical and chemical properties of the machined surfaces
- To alter the physical and mechanical properties of metals
What is the main purpose of PWHT in relation to hydrogen-induced cracking (HIC)?
What is the main purpose of PWHT in relation to hydrogen-induced cracking (HIC)?
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What is the purpose of heat treatment in general?
What is the purpose of heat treatment in general?
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