Question

________ Is the Thermo-Mechanical treatment of steel

• A. Martempering
• B. Austempering
• C. Ausforming
• D. Annealing

Hint:

Ausforming = Austenite + Forming (Deformation). The name combines the thermal and mechanical aspects.

Answer 1

The Correct Option is C

Step 1: Concept Thermo-mechanical treatment involves the simultaneous application of thermal processes (heating/cooling) and mechanical deformation.

Step 2: Meaning Standard treatments like annealing or martempering are purely thermal and do not involve intentional deformation during the phase change.

Step 3: Analysis Ausforming involves deforming the austenite in its metastable region (the "bay" of the TTT curve) before it transforms into martensite.

Step 4: Conclusion Since it combines plastic deformation with controlled cooling, Ausforming is classified as a thermo-mechanical treatment. Final Answer: (C)