610 鋼の結晶粒に及ぼす熱処理温度の影響に関する基礎研究 : 顕微鏡組織を利用したマイクロデバイスについて(材料と組織,オーガナイズドセッション)

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In this study, carbon steels (S35C. S45C. SK105C) are kept constant austenitizing temperature(1200℃) and the cooling rate from 750℃ to 700℃ is changed. The size of the crystal grain varies by changing this cooling rate. Then, the sample is cut off thinly using the wire-cut electric discharge machine and the surface of sample corrodes with Kalling's reagent. It is able to get the sample that only the ferrite dissolve in reagent the pro-eutectoid cementite and lamellar cementite remain in sample. The voids made by resolving the pro-eutectoid ferrite observe by the use of Scanning Electron Micro-scope (SEM).
2008-09-12