Explain the mechanism of temper embrittlement.

Explain the mechanism of temper embrittlement! (How, what temperature, the impact of alloying element and how to avoid it)

2: We heat treated a 2205 duplex stainless steel at 1100°C resulting in ferrite/austenite content of 50-50%. The pitting resistance temperature is 80°C. We heat-treated another piece at 800°C for 10 min and the pitting temperature dropped to 60°C. As the composition of the alloys is the same, so we have the same PRE in the alloy.

a) Why do we have a reduction in corrosion resistance? Explain based on the PRE.

b) If we use the material in a corrosive environment and loaded condition, what types of failure are you expecting to occur?

Define negotiable instruments in your own words.

Define negotiable instruments in your own words. Provide an example of a negotiable instrument (check, promissory note, dollar bill etc.) and create a drawing or use an existing photo. On the image, label the parts of the negotiable instrument.
Muriel Evans write the following note on the back of an envelope: “I, Muriel Evans, promise to pay Karen Marvin or bearer $100 on demand.” Is this a negotiable instrument? Discuss why or why not.