Phello ea Cu element ho thepa ea 8011 motsoako oa foil oa moriana

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Phello ea Cu element ho thepa ea 8011 motsoako oa foil oa moriana

Ka pampiri ena, phello ea Cu element ho hanyetsa ho baka ea 8011 alloy aluminium foil e ile ea ithutoa ka tlhahlobo ea tensile, tlhahlobo ea lesoba, tlhahlobo ea metallographic, le ho hanyetsa ho baka. Liphetho li bontša hore ka mor'a teko ea ho baka ka 275 ℃ /75s, ka hara sebaka se itseng, botsitso bo phahameng ba mocheso oa 8011 alloy e ntlafatsoa ka keketseho ea trace Cu content in 8011 alloy.
Li-tag: 8011 alloy; Ka element; baka khanyetso
1 teko
1.1 Boitsebiso ba teko
The 8011 li-alloy casting and rolling billets li ile tsa khethoa e le lisebelisoa tsa tlhahlobo, 'me billet e ne e le 7.4mm * 1140. The Cu content of the three 8011 alloys (8011-1, 8011-2, 8011-3) e ne e fapane, 'me sebopeho sa likarolo tse ling se ne se sa fapane haholo.

1.2 Leano la teko
Phallo ea tlhahiso ea aluminium foil ke: ho qhibilihisa – ho lahla le ho thetheha – ho thetheha ho batang – annealing e mahareng – ho poma – foil rolling – ho petsola – phutheloana.
Ntle le phapang ea Cu content, mekhoa e meng ea tlhahiso ea tse tharo 8011 alloy aluminium foils e hlahisoa ho latela mekhoa e tšoanang ea ts'ebetso. Foil ea aluminium e felileng e ile ea lekoa bakeng sa ts'ebetso le ts'ebetso ea tlhahlobo ea ho baka ka ho latellana. Holim'a moo, disampole ba ile ba nkoa bakeng sa teko annealing ka 180 ℃, 200 ℃, 220 ℃, 240 ℃, 260 ℃ le 280 ℃ bakeng sa 3h.

Teko ea boleng ba pinhole le dyne ea foil ea aluminium e lekoa ho latela lipehelo tsa GB3198-2010.. Mehlala e meraro ea alloy e phethiloeng e fumanoeng e ile ea beoa seboping se le seng sa muffle bakeng sa liteko tsa ho baka. Ho ea ka litlhoko tsa sebele tsa tšebeliso ea bareki, mocheso oa teko ea ho hanyetsa ho baka o behiloe ho 275 ℃, 'me nako ea ho baka ke 75s.
Mehlala ea tensile e etsoa ho latela maemo a GB3198-2010, bolelele ba gauge ke 100mm, 'me selelele se selelele sa mohlala se bapa le tsela e bilikang. Mehlala ea tensile e ile ea lekoa mochining oa tlhahlobo oa elektroniki oa KD II-1.

2 Liphetho tsa liteko le tlhahlobo
Li-alloys tse tharo li na le sebopeho se ts'oanang 'me ha ho na mefokolo ea sebopeho sa ka hare joalo ka karohano. Boholo ba lijo-thollo tsa li-alloys tse tharo ha bo fapane haholo, le boholo ba lijo-thollo ke hoo e ka bang 150 μm, e kopanang le litlhoko tsa mokhoa o batang oa ho roala le mokhoa oa ho thiba a aluminium foil substrates.

E le hore u ithute phello ea Cu content ka thepa le ho baka khanyetso ea foil aluminium, mefuta e meraro ea 8011 Lihlahisoa tsa foil tsa alloy aluminium tse nang le litaba tse fapaneng tsa Cu li ile tsa lekoa bakeng sa thepa ea mochini le ts'ebetso ea tlhahlobo ea ho baka ea lihlahisoa tse felileng.. Ba bararo 8011 alloys kaofela ba ile ba feta tlas'a serame se tšoanang, annealing e mahareng, le li-foil rolling passs ho fumana lifolakha tse feliloeng tsa aluminium tsa botenya bo tšoanang. Matla a tsitsitseng a alloy a bontšitse mokhoa o ntseng o eketseha ka keketseho ea Cu content. Ka mor'a teko ea ho baka, matla a tsitsinyehang a 8011-3 motsoako o nang le litaba tse phahameng tsa Cu o fokotsehile ka 24.1%, matla a tsitsinyehang a 8011-2 motsoako o fokotsehile ka 30.9%, le ho tiea matla a 8011-1 motsoako o fokotsehile ka 33.3% . Ho ka bonoa hore ka keketseho ea Cu content, botsitso ba ts'ebetso ea motsoako ka mor'a ho baka bo atisa ho eketseha.

Tekong ea ho baka, kaha ho hanyetsa ho baka ha foil ea aluminium ho amana haufi-ufi le boitšoaro ba recrystallization ea alloy, e le ho bapisa le ho ithuta boitšoaro ba recrystallization ea ba bararo 8011 alloys, tse tharo 8011 lihlahisoa tse felileng tsa alloy li ne li le tlas'a 180 ℃, Annealing ka 200 ℃ , 220 ℃ , 240 ℃ , 260 ℃ , 280 ℃ bakeng sa 3h, liphetho li bontša hore annealing botsitso ba 8011-3 motsoako o phahame ho feta oa 8011-2 le 8011-1 alloy, 8011 ka mocheso o ts'oanang oa annealing le nako. -3 li-alloys li na le tekanyo e fokolang ea recrystallization le ho nolofatsa.

Holim'a moo, hape re entse tlhahlobo ea boleng ba dyne le tlhahlobo ea pinhole ho tse tharo 8011 alloys. Liphetho tsa liteko li bontša hore boleng ba dyne le palo ea pinhole ea li-alloys tse tharo kaofela li kopana le maemo.

Bakeng sa 8011 alloy, ka hara sebaka se itseng, ka keketseho ea trace alloying element Cu content, phello e tiileng ea ho matlafatsa tharollo e kholoanyane, kahoo matla a 8011-3 motsoako o felile sehlahisoa se phahame ho feta sa 8011-2 le 8011-1 alloys.

Cu e ka etsa palo e nyane ea CuA12 ka ho na le pula e tiileng ea tharollo ka motsoako oa aluminium. Motsoako oa CuA12 o na le sebopeho se sa tloaelehang ebile se boreleli, 'me e aroloa ka linako tse ling moeling oa lijo-thollo ka sebopeho sa skeletal, e nang le seabo sa dislocation pinning tshebetsong e latelang ea aluminium foil le deformation process; lebaka ke hore Cu haholo-holo e teng ka mokhoa oa tharollo e tiileng ho Al, 'me ho bonolo ho bokella ho potoloha dislocations. Ho thehoa ha moea oa Coriolis ho fokotsa ho khopama ha lattice, e fokotsa tšebelisano ea elastic lipakeng tsa liathomo tsa solute le dislocation, e etsa dislocation boemong bo batlang bo tsitsitse, e fokotsa palo ea li-dislocations tse tsamaeang, e sitisa ho kopana hape ha ho kgeloha, 'me e sitisa ho kopanngoa bocha ha li- dislocations. Nucleation ea kristale le nucleation lia hola, ka hona ho eketsa matla a alloy le mocheso oa recrystallization oa foil e felileng ea aluminium.

Ea bobeli, ho latela palo ea likarolo tsa Cu le tsona li ka theha mekhahlelo ea bobeli, tse thibelang ho falla ha lifahleho tsa li-nuclei tse nchafalitsoeng le ho sitisa kholo ea lijo-thollo tse nchafalitsoeng.. Ka bokhutšoane, ka hara sebaka se itseng, ho eketsa litaba tsa trace alloying element Cu ho ka eketsa mocheso oa recrystallization ea alloy le ho ntlafatsa botsitso ba ho hanyetsa mocheso oa alloy.. Ho ka bonoa hore microalloying ke e 'ngoe ea litsela tsa bohlokoa tsa ho ntlafatsa ho hanyetsa mocheso oa li-alloys.

3 Qetello
1) The 8011-3 motsoako le 8011-2 motsoako ka mor'a ho eketsa litaba tsa Cu li ka finyella litlhoko tsa bareki ho ea ka thepa e felileng ea mochine, holim'a metsi, le palo ea likoti.
2) Ka keketseho ea Cu content, matla a tsitsinyehang a 8011 motsoako o eketseha butle-butle; ka nako e tšoanang, mocheso oa recrystallization oa motsoako o boetse o eketseha butle-butle.
3) Ka mor'a teko ea ho baka ho 240 ℃/75S, matla a tsitsinyehang a 8011-3 motsoako o nang le litaba tse phahameng tsa Cu o fokotsehile ka 24.1%, le ho tiea matla a 8011-2 motsoako o fokotsehile ka 30.9%; Matla a matla a fokotsehile ka 33.3%. 8011-3 motsoako o bontša phapang e fokolang ea thepa ho feta 8011-2 le 8011-1. Ho eketsa litaba tsa Cu ho thusa ho ntlafatsa ho hanyetsa ho baka ha foil e felileng ea aluminium.

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