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Hochlage

English translation: upper shelf (energy)

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
German term or phrase:Hochlage
English translation:upper shelf (energy)
Entered by: Claire Cox

11:15 Jun 24, 2010
German to English translations [PRO]
Tech/Engineering - Nuclear Eng/Sci / Irradiation tests
German term or phrase: Hochlage
This appears in a report of irradiation tests carried out on samples of material from the reactor pressure vessel (PWR). At first I thought it just meant the upper areas of the samples, but it seems to be being used very specifically and I'm now not sure what they mean:

Die Betrachtung aller Kriteriumskennwerte zeigt im wesentlichen die mit zunehmender Bestrahlung üblicherweise einhergehende Erhöhung der Übergangstemperaturen und ein basisdatenbezogen angestiegenes **Hochlageniveau**, das bei Satz 2 deutlich über dem KTA-Grenzwert von 68 J liegt.

Can anyone throw any light on this?
Claire Cox
United Kingdom
Local time: 07:33
upper shelf (energy)
Explanation:
This is about Charpy testing ("Kerbschlagbiegeversuch"), or testing the material's ductility/brittleness, where the energy absorbed by the specimen is measured in J (Joule) -- especially important in nuclear reactor pressure vessels: http://en.wikipedia.org/wiki/Ductile-brittle_transition_temp...

"Hochlage": the top region of the curve, called "upper shelf", in a diagram plotting/correlating the impact energy applied against the temperature, as in: http://books.google.com/books?id=pKsoPh0lbpEC&pg=PA128&lpg=P...

Also see http://www.me.uh.edu/ceramics/3445LabManual/6.CHARPY.pdf
Selected response from:

opolt
Germany
Local time: 08:33
Grading comment
Many thanks, that's really helpful.
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1upper shelf (energy)
opolt
3rising shelf / upper shelf temperature region
Ian Suppan
Summary of reference entries provided
toma_cristina

  

Answers


9 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
upper shelf (energy)


Explanation:
This is about Charpy testing ("Kerbschlagbiegeversuch"), or testing the material's ductility/brittleness, where the energy absorbed by the specimen is measured in J (Joule) -- especially important in nuclear reactor pressure vessels: http://en.wikipedia.org/wiki/Ductile-brittle_transition_temp...

"Hochlage": the top region of the curve, called "upper shelf", in a diagram plotting/correlating the impact energy applied against the temperature, as in: http://books.google.com/books?id=pKsoPh0lbpEC&pg=PA128&lpg=P...

Also see http://www.me.uh.edu/ceramics/3445LabManual/6.CHARPY.pdf


    Reference: http://www.mpmtechnologies.com/PDF/Charpy%20Testing/Miniatur...
    Reference: http://neckarwestheim.antiatom.net/index.php?option=com_docm...
opolt
Germany
Local time: 08:33
Native speaker of: German
PRO pts in category: 4
Grading comment
Many thanks, that's really helpful.
Notes to answerer
Asker: Ah, that sounds promising. I had sent a query to the client in the meanrtime and they'd come back (via the agency) with "upper shells energy", but your "upper shelf" makes much more sense when I google it.


Peer comments on this answer (and responses from the answerer)
agree  Ian Suppan: Oh, sorry, the answer wasn't there yet when I posted...
3 mins
  -> Thanks, no problem here. Sometimes answers really coincide, it has happened to me as well :-)
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9 hrs   confidence: Answerer confidence 3/5Answerer confidence 3/5
rising shelf / upper shelf temperature region


Explanation:
This does sound like testing for irradiation embrittlement. In this context, "Übergangstemperatur" would refer to the nil-ductility temperature and be defined as the range between "Hoch- und Tieflage".



    Reference: http://www.tms.org/pubs/journals/JOM/0107/Odette-0107.html
    Reference: http://books.google.com/books?id=k6bd5tOD7QEC&dq=nil-ductili...
Ian Suppan
Germany
Local time: 08:33
Native speaker of: German
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Reference comments


53 mins
Reference

Reference information:
h) Straßenbahnen, Stadtschnellbahnen in Hochlage, Untergrundbahnen, Hängebahnen oder ähnliche Bahnen besonderer Bauart, die ausschließlich oder vorwiegend der Personenbeförderung dienen,
h) Tramways, elevated and underground railways, suspended lines or similar lines of a particular type, used exclusively or mainly for passenger transport;

toma_cristina
Native speaker of: Native in RomanianRomanian
Note to reference poster
Asker: This is in the nuclear field, so I'm looking for something more specific, thanks.

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