C17110 and c17410 coppers l.jpg
This presentation is the property of its rightful owner.
Sponsored Links
1 / 7

C17110 and C17410 coppers PowerPoint PPT Presentation


  • 85 Views
  • Uploaded on
  • Presentation posted in: General

C17110 and C17410 coppers.  Chemical composition (wt%) : copper = alloy balance Be Ni Co Fe Zr Sn Al Si Zn Cr Pb

Download Presentation

C17110 and C17410 coppers

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


C17110 and c17410 coppers l.jpg

C17110 and C17410 coppers

 Chemical composition (wt%) : copper = alloy balance

Be Ni Co Fe Zr Sn Al Si Zn Cr Pb

C171100.34 1.3 - - 0.1 0.03 - - - - -

C174100.31 0.02 0.5 0.03 - 0.005 0.04 0.02 < 0.01 < 0.005 0.003

 Thermo-mechanical treatment :

C17110 TH01 = solution annealed + cold worked to 1/4 hard + precipitation hardened

C17410 TH02 = solution annealed + cold worked to 1/2 hard + precipitation hardened

300 - 400oC

Be-enriched g phase

750 - 800oC

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Tensile properties at rt l.jpg

Tensile properties at RT

L = longitudinal direction - T = transversal direction

Rp 0.2 / MPaRm / MPaA / %

C17110 / TH01 506 628 24.1

C17410 / TH02 626 736 18.7

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Slide3 l.jpg

Tensile properties at 4.2 K

L = longitudinal direction - T = transversal direction

Rp 0.2 / MPaRm / MPaA / %

C17110 / TH01 580 850 40.6

C17410 / TH02 740 937 37.5

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Slide4 l.jpg

Comparison : Tensile properties

 lower yield and tensile strengths

 higher elongation at breakdown

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Slide5 l.jpg

Comparison with C17200 copper

More traditional grade with higher Be content (2 wt%)

Used in LEP ring at present

TH02 thermo-mechanical treatment

 Tensile properties at room and low temperatures :

 improved formability

 Improved electrical conductivity :

C17200/TH02C17110/TH01 C17410/TH02

Total alloying (wt%) 3.2 1.77  0.943

% IACS 22-25 49.3 53.3

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Slide6 l.jpg

Conclusion

 Advantages of C17110 and C17410 coppers in TH02 state :

- higher ductility, improved formability

 easier product forming

 simple manufacturing process

- higher electrical conductivity

 improved electrical output

compared to more traditional C17200 beryllium copper

 Are those new coppers interesting for LHC applications ?

Is Rp 0.2 value sufficient ? Is material choice still open ?

 STAINLESS firm propose to visit CERN during the first week of May.

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


Slide7 l.jpg

Two new low beryllium coppers

Description of C17110 and C17410 coppers :

alloying, thermo-mechanical state.

 Tensile properties at room temperature and 4.2 K.

 Comparison with more traditional C17200 copper :

tensile properties, electrical conductivity.

 Conclusion :

formability, electrical output.

possible applications at CERN.

LHC Vacuum Design Meeting Karine COUTURIER/EST-SM


  • Login