What are the Classifications of Engineering Materials: Diploma in Mechanical Engineering Assignment, GSTM, Singapore

Module: Materials Engineering

Question 1

1. What are the classifications of Engineering Materials? Give 2 examples each.
2. Define/Compare their three Material Properties.

Question 2

1. Explain with the aid of diagrams Hexagonal Close Packaging, Face Centred Cubic Packaging & Body Centred Cubic Packaging.
2. Define/Compare three Material Properties of materials with the above packaging

Question 3

1. Explain with the aid of diagrams the progress of the Tensile test.
2. Comment and draw a stress-strain diagram for stainless steel.

Question 4

1. Comment on the impact of temperature on material test with two examples.
2. Draw their DBTT and explain why low DBTT is preferred.

Question 5

1. Explain three basic steps of heat treatment.
2. Explain any two heat treatment processes and the mechanical properties that can be achieved.

Question 6

1. Explain the difference between Case Hardening & Surface Hardening.
2. Give 2 examples each with an explanation.

Question 7

1. Explain with the aid of a phase diagram allotropies of Iron.
2. Explain with reasons two properties of any of the iron allotropies.

Question 8

1. Explain with the aid of a diagram the Iron-Carbon Phase Diagram.
2. Plot & Explain Cementite in Iron-Carbon Phase Diagram.