(483116338) Assignment 2 _ Winter 2015 - Assignment 2 Structure and Properties of Materials ENG TECH 3SP3(Winter 2015 Deadline at 6:30 pm Last Name

(483116338) Assignment 2 _ Winter 2015 - Assignment 2...

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A s s i gn me n t 2 Structure and Properties of Materials/ ENG TECH 3SP3 (Winter 2015) Deadline March 27, 2015, at 6:30 pm Last Name Student No: First Name For multiple choice questions: Circle the letter to indicate your answers. Be sure to show your work so that part marks can be awarded for incomplete answers. T o t a l ma rks: 100 [4 marks] 1. A peritectic transformation can be represented as: a) α β c) γ → α + β d) α + L → γ b) L → α + β [4 marks] 2. The austenite (  can be best described as: a) A random distribution of C atoms in-between the Fe atoms, in the FCC iron. b) Grains of carbon (C) randomly mixed with grains of iron (Fe). c) A random arrangement of Fe atoms at the FCC crystal lattice positions of C. d) A random arrangement of C atoms at the lattice positions of Fe, in the BCC iron. [4 marks] 3 . Which of the following properties can be altered significantly by heat treatment? a) Elastic modulus b) Heat capacity c) Density d) Yield strength [4 marks]
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