Tom qab kev daws kev laus kev kho mob, nplua dub precipitates yog densely faib nyob rau hauv grain ciam teb ntawmchromium zirconium tooj liab, thiab ntau me me dub precipitates kuj tau faib rau hauv cov nplej, nrog rau qhov loj ntawm li ob peb microns.Raws li qhov kub thiab txias, qhov nkhaus mus rau sab tooj liab, thiab nws cov solubility tsuas yog 0.03% ntawm 400 ° C.Lub sij hawm no, tooj liab zirconium compound hais yog precipitated nyob rau hauv cov khoom tov.Yog li ntawd, chromium nrog lub cev-centered cubic qauv, chromium nrog ib tug kaw-packed hexagonal qauv, thiab tooj liab nrog lub ntsej muag-centered cubic qauv yuav luag immiscible nyob rau hauv chav tsev kub, tab sis tooj liab thiab chromium tsis tuaj yeem tsim cov tebchaw, thaum tooj liab thiab zirconium tuaj yeem tsim. ntau hom kev sib xyaw ua ke.Chromium thiab zirconium tuaj yeem tsim ntau theem sib xyaw.Tom qab kev kho cua sov, lub matrix ntawm chromium zirconium tooj liab yog tooj liab, thiab nag lossis daus theem yog intermetallic compound ntawm Cr theem thiab chromium.
Lub zog tensile, yield zog thiab hardness ntawm chromium-zirconium-tooj liab tom qab kev kho cua sov yog nce, thiab elongation tom qab tawg yog txo.Cov chromium-zirconium-tooj liab tsim cov tshuaj supersaturated thaum lub sij hawm ua kua, thiab theem ob thiab tooj liab tebchaw raug tshem tawm ntawm cov khoom siv thaum lub sij hawm laus txheej txheem.Los nag, theem tshiab dispersion ntxiv dag zog.Qhov thib ob theem yog dispersed thiab faib nyob rau hauv lub matrix los tsim ib coherent kev sib raug zoo nrog lub matrix.Muaj qhov tsis sib haum xeeb loj ntawm qhov sib txuas sib txuas, uas ua rau lub lattice distortion, uas ua rau kom lub zog elastic zog ntawm theem interface thiab txhim kho lub zog, hardness thiab elasticity ntawm cov hlau..Cov hluav taws xob conductivity ntawm chromium zirconium tooj liab tom qab kev kho cua sov yog siab dua li ua ntej kev kho cua sov.Raws li txoj kev xav ntawm cov khoom siv tshuaj complex theem conductivity, hluav taws xob conductivity ntawm cov laus hlau yog tsuas yog tswj los ntawm cov khoom solubility ntawm cov khoom tov matrix.Nyob rau hauv chav tsev kub, solubility ntawm alloy ntsiab nyob rau hauv tooj liab yog tsawg heev.Thaum lub sij hawm cov txheej txheem kev laus, yuav luag tag nrho cov ntsiab lus alloy yog tsis tu ncua precipitated los ntawm Cu matrix, thiab cov ntsiab lus ntawm cov ntsiab lus ntawm cov ntsiab lus nyob rau hauv cov khoom tov maj mam txo mus txog rau thaum cov khoom tov nyhav mus rau ntshiab tooj liab matrix, yog li txhim kho cov hluav taws xob conductivity.
Post lub sij hawm: Jul-06-2022