Quiz%202 - cooling path A, B, C, and D? See class notes. A:...

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Quiz 2 Name and ID 1. Which of the following process are going to increase the strength of material? (more than one answer) a. Strain hardening b. Precipitation hardening c. Strain hardening d. Annealing e. Grain size refinement a,b,c,e. 2. For an alloy containing 70% of copper, what are the phases of the alloy at temperature 1200 ° C. 1) Calculate the fractions of each phase. 50% S and 50% L. 2) What are the chemical compositions of each phase? (L: 80%Cu 20%Ni; S: 60%Cu 40% Ni)
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3. In the CCT diagram, what are the phases as results of different
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Unformatted text preview: cooling path A, B, C, and D? See class notes. A: Martensite B: Martensite and Banite /lower banite/pearlite C: upper Banite (or pearlite) D: Pearlite Which one has the highest hardness? A. Your project manager wants you to design an alloy to improve the hardenability, please select one from the following: b a. After the alloying design, the CCT curve moves to the right b. After the alloying design, the CCT curve moves to the left...
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This note was uploaded on 01/22/2012 for the course IE 370 taught by Professor Chunghorng,r during the Spring '08 term at Purdue University-West Lafayette.

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Quiz%202 - cooling path A, B, C, and D? See class notes. A:...

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