Problem Statement

Report
Mat E 413
December 16th, 2014
Mohammed Alzayer
Edward Bruns
Brady Horner
Tyler Schlueter
Outline
• Problem Statement
Materion
Project
Objectives
• Plan
Methods
Project Outline
Design of Experiment
Materials
Instrumentation
• Costs
Time
Money
Problem Statement: Materion
• Founded:
1931 (83 years ago)
• Former Name:
Brush Engineered Materials (-2011)
Figure 1: State of Ohio flag[1]
• Specialty:
High performance metals
Mostly known for Be and Be alloys
• Industries:
Electronics, defense, aerospace
Figure 2: Mobile phone[2]
Problem Statement: Project
• Material:
Cu-15Ni-8Sn (wt%) (ToughMet)
• Best for:
High strength, wear resistance
• Used in:




Figure 3: ToughMet bearings[3]
Aerospace components
Bushings
Oil and gas equipment components
Components prefer non-Be material
Figure 4: Use in aerospace[2]
Problem Statement: Project
Figure 5: Phase diagram and TTT curve for Cu-15%Ni-Sn alloy[4]
Problem Statement: Objectives
• Spring 2014:
 Homogenizing temperature
(T) and time (t)
 Effect on microstructure
and hardness
• Now:
 Cold work, as well as:


Microstructure
Hardness
Figure 6: Former group interesting finding[5]
Plan: Methods
• Get in depth w/:
 Literature
 S14 work
•
To achieve objectives:




Group E-mail
Weekly updates
DOE based on S14
Notebook
Figure 7: Literature work[4]
Plan: Project Outline
• Receive & Cut samples
• Solutionize
 Varying times & temperatures
• Quench
• Cold Roll
 Varying amounts
• Age
• Hardness Testing
• Optical Microscopy
Plan: DOE
• Solutionizing time:
 12 hrs
 24 hrs
 48 hrs
• Solutionizing Temp:
Figure 8: Solutionizing, previous study[5]
 816°C
 860°C
•
Quenchant:
 Severe brine
solution
Figure 9: Quenching, previous study[5]
Plan: DOE
• Reduction in thickness
(Rolling):




25%
50%
75%
90%
• Aging:

393°C for 16 hours
Figure 10: Aging, previous study[5]
Plan: Materials
• ToughMet:


•
Brine:




•
1/2” bar
1/8” sheet
3 L water
167 mL Dawn dish soap
41.68 mL Jet-Dry surfactant
398 g salt
Nitol Etchant
Figure 11: Brine solution recipe
Plan: Instrumentation
• Cold working:
 Rolling mill (Ames Lab)
• Cutting:
 Abrasive saw
• Solutionizing and aging:
Figure 12: Ames Lab
 Furnaces
• Microscopy:
 Polishing wheels
 Mounting press
 Optical microscope
• Hardness:
 Rockwell Hardness tester
Figure 13: Optical microscope
Costs: Time
• Pre-Spring Break:
• 30-Mar – 27-Apr: Analyze results, final report
Costs: Money
• Allotted budget: $5K ($1K goal)
Operation
Cost
Diamond saw cuts
Mounting, polishing*
Etchant (nitol)
$5
$5
$30
Optical microscopy
$10
Low temp (900 °C)**
$10
Hardness tests
Rolling (cold work)
$1
$206
Quench (salt)
$1
Unit
Metallography
per sample
per sample
250 mL
Microscopy
hr
Furnaces
per run
Mechanical
per sample
per hr
Misc
per lb
Total
* includes entire mount, polish, etch
** extra charge after 10 hr ($2 per hr)
Quantity/ Time
Sum
48
48
1
$240
$240
$30
5
$50
96 hrs
$172
64
2 hrs
$64
$412
1
$1
$1,209
Conclusions
• Material:
ToughMet (Cu-15Ni-8Sn)
• Spring 2014:
Solutionizing T, t on hardness, microstructure
• Spring 2015:
Cold working on solutionizing T, t
• Acknowledgments:
Faculty Mentor: Dr. Chumbley, Tim Prost
Materion Contact: Dr. Grensing, Dr. Trybus
Questions
Works Cited
[1] Eisenmann, Josh."The flag of the U.S. state of Ohio." Wikimedia
Commons. Web. 11 Dec. 2014.
[2] "MATERION Corp" Getfilings.com. Web. 11 Dec. 2014.
[3] "ToughMet alloy outperforms other bushing & bearing materials."
MATERION Corp. Web. 11 Dec. 2014.
[4] Zhao, J.C. "Spinodal Decomposition.....In a Cu-15Ni-8Sn Alloy."
Acta Metallurgica 1998: 4203-4218. Print.
[5] Ding, Zhenpei, Lee, Victor, Meiszberg, Andrew, Schlueter, Tyler.
"Effect of homogenization on Cu-Ni-Sn." ISU. Web. 11 Dec. 2014.

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