Precipitation of Cementite from Pure Iron after Rapid Cooling
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摘要: 通過在透射電鏡下明視場、暗視場、電子衍射結構分析,研究了工業純鐵在激冷條件下三次滲碳體的析出.結果表明:快速冷卻不能完全抑制三次滲碳體的析出,且三次滲碳體的拆出形貌(顆粒狀、條片狀)取決于鋼的含碳量Abstract: The experiments have been carried out to carefully investigate precipitation of cemenhte from pure iron during rapid cooling. By TEM, it was observed that the cemenhte, also called as the thini cemenhte, precipitated on the grain boundray from supersoluable alpha ferrite, and its shape, which is usually spheroidal or filmy, depends on the carbon content of the pure iron.
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Key words:
- cementite /
- precipitation /
- rapid cooling
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