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คลิกที่แต่ละคำเพื่อดูรายละเอียด
(english) Heating a metal beyond the temperature limits allowable for the desired heat treatment, or beyond the point where serious oxidation or other detrimental action begins.
(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.
(english) A cavity which was produced during the solidification of metal by evolved gas, which in failing to escape is held in pockets.
両得
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n
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両極
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第二
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其
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启
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(๑) ดู กลึงกล่อม. (๒) ดู กำแพงเจ็ดชั้น ๒ (๒).
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