Zaj duab xis Coated Metallographic Examination yog phem

Loj hauv - cov khoom siv pabcuam: cov khoom siv tsis tau tshem tawm xws li lub zog boilers / lub nkoj siab, cov kav dej tshuaj, cua turbine spindles, metallurgical rollers, nkoj ncej tshuab, thiab lwm yam
Vuam pob qij txha: ntawm -qhov chaw tsis yog- kev kuaj xyuas ntawm microstructure thiab qhov tsis xws luag ntawm welds, tshav kub cuam tshuam rau cheeb tsam (nrog rau qhov tseem ceeb rau ntxhib- thaj chaw nplej), thiab fusion kab
Thaum tshav kub kub kho qhov chaw: Kev ntsuam xyuas ntawm deg microstructure, hardening txheej, thiab decarburization txheej ntawm quenched / tempered / carburized / nitrided qhov chaw (tsis muaj kev puas tsuaj rau lub workpiece)
Cov txheej txheem kho deg: Kev tshuaj xyuas tsis zoo ntawm microstructure thiab thickness ntawm txheej, tshuaj tsuag txheej, thiab oxide txheej
Kev soj ntsuam tsis ua haujlwm: ntawm- qhov chaw rov txheeb xyuas cov keeb kwm tawg, qhov nkag, thiab cov kab mob corrosion ntawm hauv - cov khoom siv
Cov ntaub ntawv tshwj xeeb / kev ua haujlwm: deg microstructure ntawm hard alloys, siab -kub alloys, thiab precision alloys; Kev tshuaj xyuas cov khoom me me thiab loj - cov phiaj xwm cheeb tsam

Deg macroscopic defects: qhov chaw thiab morphology cov ntaub ntawv ntawm cov kab nrib pleb, quav, inclusions, corrosion pits, thiab pores
Macroscopic morphology ntawm welds: weld tsim, txuas ntxiv ntawm fusion kab, thiab kev txheeb xyuas ntawm tshav kub cuam tshuam cheeb tsam
Kev txheeb xyuas microstructure: morphology thiab kev faib tawm ntawm ferrite, austenite, pearlite, martensite, bainite thiab lwm yam microstructures
Grain size rating: Txiav txim siab qhov nruab nrab grain loj thiab faib raws li cov qauv
Kev ntsuam xyuas tsis yog xim hlau suav nrog: Hom, qhov loj me, thiab kev faib tawm ntawm A / B / C / D suav nrog
Kev tshuaj xyuas ntawm carbides / precipitates: morphology, qhov loj me, kev faib tawm, thiab qib ntawm spheroidization (tsim rau siab -cov khoom ntsuas kub ntawm kev laus)
Qhov tsis xws luag: creep pore ntom, microcrack ntev / dav, intergranular corrosion℃grading
Hardened txheej / decarburized txheej: microstructure hloov thiab thickness ntsuas ntawm nto mus rau substrate
Welding Organisation Special Project: Kev ntsuam xyuas ntawm Weld Seam Columnar Crystals, Coarse / Fine Grains nyob rau hauv tshav kub cuam tshuam, thiab kev ncaj ncees ntawm Fusion kab
Kev txheeb xyuas qhov zoo: tsis muaj npuas, tsis muaj wrinkles, cov ntaub so ntswg ntshiab
Cov txheej txheem kev ntsuas kev sib raug zoo: kev sib raug zoo ntawm kev kho cua sov / vuam tsis zoo thiab seb lub koom haum puas ua tau raws li tus qauv tsim
Txoj Kev Ua Neej Nyob: Kev Ntsuas Lub Neej Tseem Ceeb Raws li Lub Koom Haum Kev Laus thiab Kev Txhim Kho Tsis Zoo