看真相不要看假相 二、金相试样制备
二、金相试样制备 1 看真相不要看假相
好样品是成功的一半
好样品是成功的一半 2
金相学(metallography) ·Metallography: -A systematic method to examine microstructure of materials (mainly metallic materials) Can also be used to examine ceramics, polymers and semiconductors
金相学(metallography) • Metallography: – A systematic method to examine microstructure of materials (mainly metallic materials) – Can also be used to examine ceramics, polymers and semiconductors 3
Robert Hooke(1635-1703) 于17世纪晚期设计的显微镜 www.instrumoat com.c 图1铁顾石腐刻后直接印制的魏氏组织(1820) Count Alois von Beckh Widmanstattens Π.Π.AHOCOB H.C.Sorby A.Martens F6 F.Osmond Fig's
4 Count Alois von Beckh Widmanstätten П.П. Аносов H.C. Sorby A. Martens F. Osmond Robert Hooke(1635-1703) 于17世纪晚期设计的显微镜
取样 制样 浸蚀 观察 5
5 取样 制样 浸蚀 观察
取样 礼制表而 轧斜方狗阿 3 图1~1轧制刑材金相试样的拟 1一与轧捌彩预℉行的纵断面2一与轧制表面垂直的纵断面 3一横断面4一欢射挑断啊6一切向纵断面 6
取样 6
取样 nipls.cumm 程到西uu, 7
取样 7
取样 B A WwwSss C CMB2227 D 8
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取样 电火花放电加工 (electric discharge machining) DK740维接 4可车N1长有B风 图104数控线切割加工原理 1一数控装置：2一滚丝简；3一导轮；4一电极丝；5一工件； 6一喷嘴；7一绝缘板；8一高频脉冲发生器；9一系； 10一工作液：11一步进电机 9
取样 • 电火花放电加工 (electric discharge machining) 9
取样 (a) Microtomy: e Useful for preparing soft materials such as polymer samples. 。 Steel,glass or diamond knives in a microtome can Specimen Specimen holder block Block Specimen cut samples into very thin Knife sections. Knife Cut section Sections (b) (a)Adapted from http://www.me.ust.hk/-meiswu/. Copper Microscope slide (b)From http://blass.com.au/definitions/microtome mesh grid 10
取样 10