金相照片欣赏--QT 高淬低回
不太成功的彩蝕. They are for you to keep.---- As hands-on metallurgist at work ,
I am probably the oldest in Taiwan.
故意高溫使Austenite粗大.
1020C淬於180C鹽浴30分鐘.
竹葉:M;細針:下B.
[ 本帖最后由 leomet 于 2009-6-3 05:52 编辑 ] very beautiful there are obviously cracks generated at the middle of the M-needle. pretty typical and high-level. Howbeautiful thereare!!!!!
怎么不见石墨的踪迹?
W 回楼上:图上注放大倍数的都是石墨,x1400,x1000等地方,灰色的、球状的一部分,其他还有一些。 做的很漂亮,很清晰啊 赞一个,怎么做的? 不错呀学学很好的:lol :lol :lol 很漂亮的说。请问腐蚀剂是什么啊?
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