1 Khoom Description
Tsav los ntawm kev cuam tshuam tawg ' Kev sib txuas ntawm ob lub phaj hlau tom qab kev sib tsoo ceev yog hu ua tawg vuam. Kev tawg vuam tuaj yeem vuam ob lub hlau uas nyuaj lossis tsis tuaj yeem txuas nrog fusion vuam , cov txheej txheem yooj yim , Kev sib txuas muaj zog , thaj chaw sib xyaw loj , Kev ua haujlwm siab ntau lawm , Tus nqi qis , Thiab cov thickness thiab thickness piv ntawm txheej txheej thiab Lub hauv paus txheej tuaj yeem hloov kho ntawm qhov yuav ' Yog li ntawd, Lub zog siab c11000 tooj liab clad steel ntawv tau dhau los ua cov txheej txheem tseem ceeb rau kev tsim cov phaj sib xyaw hauv tsev thiab txawv teb chaws. Thaum lub sij hawm tawg welding, qhov sib koom ua ke saum npoo instantaneously absorbs lub zog yas deformation ua hauj lwm uas tsim los ntawm explosive kev sib tsoo, uas ua rau nws cov qauv tshwj xeeb complex , thiab muaj ib tug ncaj qha cuam tshuam rau kev ua tau zoo ntawm siab zog c11000 tooj liab clad steel ntawv , Tab sis qhov no junction cheeb tsam yog heev nyias. Nws yog ib qho nyuaj rau kev paub qhov txawv ntawm nws cov ntsiab lus nyob rau hauv optical microscope , nyob rau hauv daim ntawv no, SEM thiab TEM yog siv los soj ntsuam lub microstructure ntawm lub tsev txhab nyiaj interface , Qhov no yog ib qho tseem ceeb rau kev nkag siab txog cov txheej txheem thiab mechanism ntawm tawg vuam thiab taw qhia cov formulation ntawm tawg welding txheej txheem. ' Nws kuj tseem muaj cov txiaj ntsig tseem ceeb hauv kev txo cov khoom seem ntawm cov khoom thiab txhim kho qhov zoo thiab kev pabcuam lub neej ntawm cov khoom.
2 Cov txiaj ntsig ntawm kev sib tw hardness hauv kev sib koom ua ke
Saib daim duab 1 rau qhov hardness faib nyob rau hauv lub tsev cog khoom cheeb tsam ntawm T2/20 # tawg welded composite phaj. Nws tuaj yeem pom los ntawm daim duab 1 ' Lub hardness ntawm kev sib koom ua ke yog siab dua li ntawm clad phaj thiab puag phaj , tshwj xeeb tshaj yog, qhov hardness ntawm lub interface yog siab tshaj. Qhov no qhia tau hais tias muaj pes tsawg leeg thiab cov qauv ntawm kev sib txuas ntawm thaj chaw tau hloov pauv tom qab tawg vuam piv nrog cov cladding thiab substrate.
3SEM cov ntsiab lus
Tom qab polishing, qhov muag liab qab tuaj yeem pom tias qhov sib txuas sib txuas yog serrated. Tom qab etching, cov qauv wavy tau pom meej meej nyob rau hauv lub tshuab ntsuas hluav taws xob scanning (saib daim duab 2a) 、 Wave qhov siab 0.3mm 、 Wavelength 1.0mm. Lub ncov ib leeg tuaj yeem pom ntxiv los ntawm kev nthuav dav siab , Muaj ob qhov chaw vortex nyob rau pem hauv ntej (txoj cai) thiab sab nraub qaum (sab laug) ntawm nthwv dej ntawm ob sab ntawm nthwv dej ; Lawv yog cov vortex pem hauv ntej (Fig. 2b) thiab rov qab vortex (Fig. 2c). Muaj qhov pores thiab porosity ntawm qhov ntau thiab tsawg nyob rau hauv pem hauv ntej vortex , Muaj cov khoom daig ntawm cov hlau nyob hauv qab vortex (saib daim duab 2d). Cov nplej ntawm sab steel ze ntawm qhov sib txuas sib txuas nthuav tawm rheological phenomenon , uas yog, cov nplej yog elongated raws yoj propagation kev taw qhia , Thiab nrog yoj khoov. Qhov tshwm sim rheological no hnyav dua vim nws nyob ze rau qhov sib txuas sib txuas. Saib Table 1 rau kev txheeb xyuas cov ntsiab lus ntawm Zone A (pem hauv ntej vortex), Zone B (ntawm qhov sib txuas) thiab Zone C (rov qab vortex) hauv daim duab 2.
4 Cov txiaj ntsig ntawm kis tau tus mob electron microscopy
Nyob rau hauv kis tau tus mob electron microscope , lub interface steel sab yog strip deformed qauv , muaj high-density dislocations nyob rau hauv lub sawb (Fig. 3a) ‚ Xaiv cheeb tsam electron diffraction qhia tau hais tias lub strip qauv yog － Fe (Fig. 3b). Cov nplej nyob rau sab tooj liab ntawm qhov sib txuas yog elongated ' Muaj ntau qhov sib txawv hauv cov siv lead ua (Daim duab 4a) 、 Twin qauv kuj pom (Daim duab 4b). Tsis tas li ntawd, cov txheej txheem microcrystalline tau pom nyob rau sab tooj liab (Daim duab 5) , Nws cov qauv yuav raug txiav txim siab.
Cim npe nrov: siab zog c11000 tooj liab clad steel ntawv, Tuam Tshoj, manufacturers, lwm tus neeg, Hoobkas, customized, yuav, nqe, zoo, quotation, pricelist, hauv Tshuag
