Justin Wang
Engineering 45
Gronsky
Homework 4
3.75
Assuming the relative peak heights would be the same for given (hkl) planes, sketch a
diffraction pattern similar to that shown in Figure 3.33 for copper powder using CuK radiation. Cover the range of 20

Objectives:
The objective of this lab is to understand the properties of strength and toughness
of materials based on the results of the uniaxial test and Charpy impact test. Another
objective is to standardize the fundamental concepts of mechanical stres

Problem 10.13
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
10.13 (a) A eutectoid steel is cooled at a steady rate from 727 to 200C in exactly 1 day. Superimpose this cooling curve on the

Justin Wang
Engineering 45
Gronsky
Homework 2
2.6
An optical fiber for telecommu nications is made of SiO2 glass (density = 2.20 Mg/m3).
How many Si atoms and how many O atoms are present per millimeter of length of a
fiber 10 m in diameter?
In one millim

Engineering 45 HW06
9.3 Calculate the degrees of freedom for a 50:50 copper-nickel alloy at (a) 1,400oC,
where it exists as a single liquid phase; (b) at 1,300oC, where it exists as a two-phase
mixture of liquid and solid solutions; and (c) 1,200oC, where

Engineering 45 HW06
10.7 A theoretical expression for the rate of pearlite growth from austenite is
where CA is a constant, Q is the activation energy for carbon diffusion in austenite, R is
the gas constant, and T is an absolute temperature, TE. Derive a

Lab 05
Heat Treatment of Steel
Submitted by: Jessica Roche
Lab Partners: Beate and Vegard
Lab Section 101 Tuesday 8-11 am
GSIs: Ouliana Panova and Brandon Beberwyck
Objective:
The main objective of this lab was to understand how heat treatment of steel
sh

Problem 3.4
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
3.4
(a) Which two-dimensional point lattice corresponds to the crystalline ceramic illustrated
in Figure 1-8a? (b) Sketch the uni

Lab 01
Basics of Mechanical Behavior
Submitted by: Justin Wang
Lab Partner: Christy Jarman
Lab Section: 102, Tuesday, 8:00-11:00 AM
GSIs: Francois Debaillon Vesque, Kyle Tom
Objectives
The goal of this lab was to better understand strength, stress, and st

Lab 03
Recovery, Recrystallization, and Grain Growth
Submitted by: Justin Wang
Lab Partner: Christy Jarman
Lab Section: 102, Tuesday, 8:00-11:00 AM
GSIs: Francois Debaillon Vesque, Kyle Tom
Objectives
The goal of this lab was to better understand how heat

Lab 04
Binary Alloy Phase Diagrams
Submitted by: Justin Wang
Lab Partner: Christy Jarman
Lab Section: 102, Tuesday, 8:00-11:00 AM
GSIs: Francois Debaillon Vesque, Kyle Tom
Objectives
The goal of this lab was to better understand how cooling an alloy can p

Justin Wang
Engineering 45
Gronsky
Homework 8
6.29
A crystalline grain of iron in a metal plate is situated so that a tensile load is oriented
along the [110] crystal direction. If the applied stress is 50 MPa (7.25 103 psi), what
will the resolved shear

Problem 9.4
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
9.4
In Figure 9.7, the Gibbs phase rule was applied to a hypothetical phase diagram. In a similar way, apply the phase rule to a

Problem 5.6
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
5.6
What type of crystal direction corresponds to the movement of interstitial carbon in -Fe
between equivalent ( 0 -type) inters

Problem 6.7
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
6.7
In normal motion, the load exerted on the hip joint is 2.5 times body weight. (a) Calculate
the corresponding stress (in MPa)

Project 3.2.5 Hydraulic Lift Design Rubric
Topics
Brainstorming
Sketch Ideas
4 points
Generates at least three viable
ideas. Selects most appropriate
concept and clearly justifies the
choice using appropriate criteria.
Uses appropriate symbols, is
complet

Problem 3.3.1 Design Problem
Introduction
The movie Apollo 13 tells the true story of a team of astronauts traveling to the
moon. While in space, the crew and mission control team encountered several
problems, including damaged oxygen tanks. As a result o

Problem 3.75
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
3.75 Assuming the relative peak heights would be the same for given (hkl) planes, sketch a diffraction pattern similar to Figure

Problem 2.6
J. F. Shackelford, Introduction to Materials Science for Engineers, 7th Edition, Prentice Hall, New Jersey (2009)
2.6
An optical fiber for telecommunications is made of SiO2 glass (density = 2.20 Mg/m3).
How many Si atoms and how many O atoms

Lab 02
The Uniaxial Tensile Test
Submitted by: Justin Wang
Lab Partner: None
Lab Section: 102, Tuesday, 8:00-11:00 AM
GSIs: Francois Debaillon Vesque, Kyle Tom
Objectives
The goal of this lab was to better understand strength, toughness of materials as we

Justin Wang
Engineering 45
Gronsky
Homework 1
6.7
In normal motion, the load exerted on the hip joint is 2.5 times body weight.
(a) Calculate the corresponding stress (in MPa) on an artificial hip implant with a cross sectional area of 5.64 cm2 in a patie

Objective:
The objective of this lab is to understand the mechanical behavior of materials
by measuring the hardness of different metallic samples ranging from in hardness levels.
To measure the hardness of metals using both Brinell and Rockwell hardness

Procedure:
Part I Heat Treatment
The first part involves heating a piece of brass metal that has been subjected to cold
rolling which is a mechanical deformation process done on 50% of the metal to induce a
strain gradient. Then, during this part of the l

Objectives:
The objective of this lab is to understand the process of cooling metallic alloys
and how the weight percent of each metal can affect the microstructure of the metal after
it has been quenched. This lab also helps us understand the differences

Engineering 45 HW01
6.1 The following three data points are provided for a titanium alloy for aerospace
applications (at MPa), 0.005556 (600 MPa), and 0.009897 (900 MPa). Calculate E for
this alloy.
Solution:
Solve for Energy using the Elastic Modulus or

Engineering 45 HW02
2.9 A copper penny has a mass of 2.60 g. assuming pure copper, how much of this mass
is contributed by (a) the neutrons in the copper nuclei and (b) electrons?
Solution:
(a) Because the atomic mass of copper given by the periodic table

Engineering 45 HW03
3.3 Why is there no base-centered cubic lattice in table 3.2? (use a sketch to answer)
Solution: there is no base-centered cubic lattice because it is already accounted for with
the face-centered cubic lattices. Because it is a perfect

Engineering 45 HW05
5.12 A diffusion couple is formed when two different materials are allowed to interdiffuse
at an elevated temperature (see figure 5.8). For a block of pure metal Z adjacent to a
block of pure metal B the concentration of A (in at %) af

Engineering 45 HW08
8.4 The following data were obtained from a series of Charpy Impact Tests on a particular
structural steel. (a) Plot the data as impact energy vs. temperature.
(b) What is the ductile-to-brittle transition temperature determined as cor

Engineering 45 HW09
12.3 How many grams of H2O2 would be needed to yield 1 kg of a polypropylene,
(C3H6)n, with an average degree of polymerization of 600? (Use the same assumptions
given in Example 12.1)
Solution:
1.35 g of H2O2 would be needed to yield