aging

  Aaron ·  2010-08-06 19:21  ·  24547 次点击
aging
n.
老化,成熟的过程
v.
使变老
(1)Thestorageofporcelainenamelslipsorpowdersbeforeuse.
(2)Thechangeoccurringinporcelainenamelslipsorpowderswiththelapseoftime.
(3)Inheattreatment,achangeinthepropertiesofcertainmetalsandalloysthatoccursatambientormoderatelyelevatedtemperaturesafterhotworkingoraheattreatment(quenchaginginferrousalloys,naturalorartificialaginginferrousandnonferrousalloys)oraftercoldworking(strainaging).Thechangeinpropertiesisoften,butnotalways,duetoaphasechange(precipitation),butneverinvolvesachangeinchemicalcompositionofthemetaloralloy.

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