Metallographic kev tshuaj ntsuam yog ua raws cov neeg lub ntsiab lus ntawm cov qauv kev tshawb fawb, rau kev sib sau ua haujlwm ntawm cov hlau thiab kev sib tw ntawm cov hlau thiab kev sib tw ntawm cov hlau, kev tshuaj ntsuam xyuas. Mickalographic Kev Tshuaj Ntsuam Xyuas feem ntau yog los ntawm kev siv cov qauv kev sib tsoo thiab cov duab sib xyaw ua ke ntawm cov kev ntsuas ntawm lub ntsej muag sib tsoo, yog li los tsim kom muaj kev sib txuas ntawm cov khoom siv sib xyaw ua ke, yog li los tsim kom muaj kev sib tsoo ntawm lub ntsej muag, yog li los tsim kom muaj kev sib tsoo ntawm cov khoom siv sib xyaw ua ke, yog li los tsim kom muaj kev sib txuas ntawm alloy.
Qhov tseem ceeb ntawm kev ntsuas metallographic hauv cov ntaub ntawv tshawb fawb thiab nws lub luag haujlwm. Ib qho yog kub dov carbon hlau, uas yog cov khoom siv metallic uas tau ua rau muaj kev pheej yig dua los ntawm kev ua kom zoo dua cov txheej txheem. Qhov thib ob yog tsawg-alloy steel high-zog kub-rolled steel; Qhov thib peb yog alloy txheej txheem hlau. Peb hom hlau nruj me ntsis hais txog kev sib tham hauv microstructure nyob rau hauv lub moadographic kev ntsuam xyuas ntawm cov khoom siv hlau.
Tshuaj lom neeg cov tshuaj lom neeg thiab lub koom haum metallographic
Ua ntej tshaj plaws, hauv kev ntsuas tshuaj lom neeg tshuaj xyuas thiab ntsuas phoo lub koom haum ntawm kev nkag siab txog dab tsi yog cov qauv alloy, nws qhov tseem ceeb thiab nws qhov tseem ceeb. Nyob rau hauv tus txheej txheem ntawm alloy tsim, qhov tseem ceeb yog kom ua tau kev ntsuas zoo ntawm cov yam ntxwv ntawm kev xav tau kev tshuaj ntsuam xyuas thiab tswj hwm tus qauv kev tsim qauv. Cov khoom no yog cuam tshuam ncaj qha ntsig txog kev tswj hwm kev sib xyaw, cov koom haum nto moo thiab kev ntxhov siab. Yog li ntawd, nyob rau hauv lub koom haum Metallographic kev sim yuav tsum tau pom meej meej thaum tib lub sijhawm nws cov khoom siv, tshuaj lom neeg. Lub hom phiaj ntawm alloy tsim yog los ua ke ntau yam khoom ntawm txhua qhov kev tsim kho kev tsim kho, txhawm rau ua kom nws ua tau zoo.
Metallographic kev ntsuas kev tshawb xyuas, tsis yog tsuas yog cov nqaij mos thiab ntsuas, ob qho tib si thiab cov tshuaj ntsuam xyuas kev ntsuas, ib nrab. Metallographic xeem yog summarized nyob rau hauv cov khoom hauv qab no:
(1) Lub koom haum thiab cov qauv ntawm cov theem matrix ntawm cov khoom siv thiab nws tsis xws;
(2) Microstructure kev taw qhia thiab lub xeev tsis muaj kev sib txawv, xws li kev faib khoom, tsis sib luag, grain loj;
(3) Hom qauv, qauv, muaj pes tsawg leeg, tus lej, morphology, loj thiab faib cov theem ob;
(4) Kev tshawb fawb ntawm cov qauv siv lead ua nyob rau hauv uas cov atoms faib ua ke raws li cov neeg hluav taws xob thiab cov tshuab hluav taws xob tau faib ua hluav taws xob.
Raws li kev kuaj microstructure muaj kev txhawj xeeb, kev kuaj xyuas cov microscination ntawm cov duab, yog li hauv microstructure kev soj ntsuam tau muab faib ua plaub qib. Txheeb xyuas qhov tseeb dab tsi Microstructure; kev tsim kho microstructure xeev; Quantitative Mottructure State; Microstructure thiab kev ua tau zoo ntawm kev sib raug zoo ntawm.
Metallographic Kev Ntsuas
Lub hauv paus ntsiab lus ntawm cov hlau hlau meTallographic tsom thiab siv cov tshuaj tua metallographic kom pom cov khoom siv hlau, thiab ua kom muaj kev txheeb xyuas cov khoom siv tau raws li kev soj ntsuam cov txiaj ntsig. Los ntawm cov txheej txheem no, cov ntaub ntawv xws li cov qauv siv lead ua, theem sib zog, suav nrog cov khoom siv hlau tuaj yeem nkag siab thiab tshuaj pleev lub cev ntawm lub cev.
Daim ntawv thov ntawm cov hlau hlau meTallographic tsom xam thiab kev sim siab heev, npog ntau daim teb xws li hlau thiab cov hlau, cov khoom siv titanium, alloys alloys thiab lwm yam. Hauv tshav ntawm cov hlau thiab hlau, ntaus pob ncaws pob tuaj yeem siv los nkag siab txog microstructure thiab kwv yees nws lub zog, kev ua kom muaj zog, corrosion tsis kam thiab lwm yam khoom. Nyob rau hauv thaj teb ntawm cov tsis muaj hlau, metallographic tsom kwm tuaj yeem siv los kawm theem muaj pes tsawg leeg thiab microys kev tsim qauv, thiab ua kom zoo ntawm cov qauv tsim thiab npaj cov txheej txheem ntawm alloys. Nyob rau hauv lub tshav pob ntawm titanium alloys thiab txhuas alloys, metallographic tsom kwm tuaj yeem siv los txheeb xyuas qhov loj me thiab faib cov khoom siv ntau yam thiab xeb tawm tsam. Metallography tuaj yeem tshawb xyuas: Kev txheeb xyuas loj, pob zeb sib xyaw, cov khoom siv tshuaj tsw qab, xaim hluav taws xob, qoob loo tseem ceeb, qoob loo sib txawv, thiab sib txawv ntawm daim duab Cov hau kev rau cov ntaub ntawv hlau thiab khoom xeem.
