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Engineering (คำศัพท์วิศวกรรม) : ความหมายของคำว่า  Aging 2 คือ ...
   
  Aging 2 ความหมาย คือ (english) A change in properties that occurs at ambient or moderately elevated temperatures after hot working or a heat treating operation (quench aging in ferrous alloys), or after a cold working operation (strain aging). The change in properties is often, but not always, due to a phase change (precipitation), but does not involve a change in chemical composition. In a metal or alloy, a change in properties that generally occurs slowly at room temperature and more rapidly at higher temperatures.
   
 
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