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×ܽáÂíÊÏÌåÏà±äµÄÌØÐÔ£¬²¢ËµÃ÷ÈçºÎ²âÁ¿ÕâÐ©ÌØÐÔ. (Summarize the characteristics of a martensitic transformation and indicate how these would be measured in practice) There are five main martensitic characteristics 1. Athermal transformation ¨C amount of martensite formed is dependent on temperature below MS, but not on time held at that temperature. 2. A rational orientation relationship between parent and product phases (in ferrous martensites the K-S OR is often shown). 3. The need for rapid interface motion requires a highly glissile habit plane. 4. The combination of a fixed orientation relationship, a coherent Habit Plane and a volume change leads to surface relief 5. Atomic correspondence ´ó¼ÒÖ»Òª¸æËßÎÒÈçºÎ²âÁ¿ÕâÐ©ÌØÐÔ¾Íok. |
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