Kenelle

Deformation ke tshebetso eo ho eona tlas'a tšusumetso ea mejaro sebelisoa ho 'mele fetola boholo ba eona le sebopeho. liphetoho Process e ka ba ea mefuta e 'meli. Le bolela reversible pele (rekere) ho ea bobeli - barrel (polasetiki) deformation.

The mofuta pele ke tshebetso eo ho eona ka mor'a ho tlosoa ha 'mele mojaro kena sebopeho ka eona qalong. Sena se fetola sebaka se pakeng tsa liathomo hara meedi kristale lekhoakhoa.

deformation polasetiki ke tshebetso eo ho eona 'mele ka mor'a ho tlosa mojaro ha tsosolosa sebopeho ka eona qalong. Phetoho ena e tsamaea le displacement bohlokoa ba likarolo tse ling tsa kristale amanang le ho e mong le e tse ling tse hōjana ho feta sebaka sa ho lekhoakhoa kristale pakeng tsa liathomo le.

deformation polasetiki kamehla latelang e rekere. Ka lebaka leo, li fetohele ka kakaretso ka mojaro motsotso ya tshusumetso akarelletsa dithulaganyo tse peli - reversible le barrel.

Deformation tsa tšepe e le ea bohlokoa haholo e sebetsang. Sena ke ka ntlha ya go haholo-holo ha e le hantle hore ho phekola khatello ea lintho tse bonahalang tse e thehiloe thulaganyou e fetola sebopeho le boholo ba likheo tsena. Le sena, khatello ea kelello e ka hare le hlaha ho susumetsa physicochemical le ho phetha molao feela thepa ea boitsebiso boo.

deformation polasetiki tsa tšepe (mofuta lona le bongata) itšetlehile ka plasticity ea thepa. thepa ena e ka lekanyetswa go ya ka nako ya narrowing mong ka rōna kapa lelefatsa disampole le ka teko tensile. Features kenyeletsa tse latelang tšepe ductility hape e pontshi tsa toughness. thepa ena e bontša ho timetsoeng ha mosebetsi oa nakong kobang notched mabapi le sebaka sectional ea hapa karolo e itseng.

The ductility tsa taba e eketsa le phapang pakeng tsa matla a ka lihlahisoa le matla. deformation polasetiki ka thepa brittle e hoo e ka bang ha e etsahala. Ka lebaka la 'nete ea hore ba tekanyo lihlahisoa khatello ea kelello ha e haufi le boemo ba tensile matla, khefu ba itima lijo ka ho lekaneng. Sena se etsahala, ho etsa mohlala, ka khalase, porcelain, tšepe, ka majoe. Ho sa le joalo, futhumatsang tšepe ho mocheso phahameng isang 'nete ea hore lenane la ba matla tensile ke hoo e ka bang le tsoanang le boleng ba le matla a ka lihlahisoa.

Barrel polycrystalline sebopeho phetoho lintho tse bonahalang o na le tse ling tse ka ho ipapisa le tshebetso e tšoanang ka 'mele oa ba se nang balekane kristale. Batang polasetiki deformation ke chelete ea liphetoho ka sebopeho le boholo ba lijo-thollo le ka bomong le phetoho ka bophahamo ba modumo leliboho. Ha a ntse a se khoahlapisitseng motho ba tlas'a deformation ke twinning le Sliding interconnection bona le plurality tsa polycrystalline 'mele ho etsa tse hlahang ho tshebetso.

Mabapi le sefofane Sliding tsitlella sekametseng ka sebaka, tshebetso tla etsahala ka litsela tse sa tšoaneng. Ho qala pele ho deform khoahlapisitseng tseo tse tlas'a sefofane Sliding la beola khatello ea kelello lebetsoeng le. Tabeng ena thepa ea motheo e pota-potileng le tla butle-butle ba kenelle tshebetso. Deformation fetola sebopeho bona - ba ba o molelele o ka tataiso ea matla palo e kahodimodimo ea phallo tšepe (lengthways amanang le ho tataiso ea deformation).

Kahoo, lintho tse bonahalang tse fumanang mohaho fibrous. O molelele o metallic inclusions bakela ho se tšoane ka thepa faeba hammoho le ka mose. Ho fetola sebopeho sa khoahlapisitseng le ho e tsamaea ke ho fetoha ha ho tlwaetsa lattices le kristale ka sebaka sa. Ka mor'a ho fetisisa ya thepa ea motheo e tla ba le dikamano e tšoanang, botenya e thehoa deformation.