현미경 조직 특성평가-동전

소개글

현미경 설계자료

목차

1. Purpose
2. Theories
3. Procedure
4. Results
5. Conclusion & Discussion
6. Reference

본문내용

Cu(70%, 2.912g)
+ Zn(18%, 0.7488g)
+ Ni(12% , 0.4992g)
Manufacturing cost
Cu(24.8won) + Zn(1.7won) + Ni(13.3won) ≒ 55.1won
*
Procedure
Making specimen(cutting)
Mounting
Grinding / Polishing
Making etchant
Etching
Observing microstructure.
Hardness test
*
Making Specimen
*
Mounting
Production Complete
When working in bulk sample,mounting may not be
required;however if the sample is small oddly shaped, mounting may be neccessray.
Mounting
*

참고 자료

1. History of coins and the weight, ingredients : Korea Minting & Security Printing Corporation
(http://www.komsco.com/)
2. Metal price : London Metal Exchange (www.lme.com, LME Official Prices (US$/ton) for 26 May 2010)
(Cu : 8.5won/g Al : 2.5won/g Zn : 2.3won/g Ni : 26.7won/g)
3. Exchange rate : 1,237.30won/US$ (`10.05.27 12:31 28th Notice by foreign banks)
4. Metallografie Hermann Schumann . under joint authorship of Heinrich oettel