Yield zog yog lub tswv yim tseem ceeb hauv kev ua haujlwm ntawm seamless yeeb nkab mechanics. Nws yog tus nqi kev ntxhov siab ntawm seamless steel yeeb nkab thaum cov khoom siv ductile yields. Thaum lub seamless steel yeeb nkab yuav deform nyob rau hauv qhov kev txiav txim ntawm quab yuam, lub deformation ntawm lub sij hawm no yuav muab faib ua ob txoj kev: yas deformation thiab elastic deformation.

1. Yas deformation yuav tsis ploj thaum lub zog sab nraud ploj, thiab seamless steel yeeb nkab yuav raug deformation mus tas li.
2. Elastic deformation txhais tau hais tias nyob rau hauv cov xwm txheej ntawm kev quab yuam sab nraud, thaum lub zog sab nraud ploj mus, qhov deformation kuj yuav ploj mus.

Lub zog tawm los kuj yog tus nqi kev ntxhov siab ntawm cov yeeb nkab seamless thaum nws pib ua cov yas deformation, tab sis vim tias cov khoom siv tawv tawv tsis ua kom pom tseeb cov yas deformation thaum nws ncav cuag lub zog sab nraud, tsuas yog cov khoom siv ductile muaj lub zog tawm los.

Ntawm no, lub zog tawm los ntawm seamless yeeb nkab peb xa mus yog qhov kev txwv tsis pub dhau thaum yielding tshwm sim, thiab kev ntxhov siab tawm tsam micro-yas deformation. Thaum lub zog ntau dua qhov kev txwv no, ib feem yuav poob mus tas li thiab tsis tuaj yeem rov qab los.

Lwm yam cuam tshuam rau lub zog tawm los ntawm cov kav dej seamless yog: qhov kub thiab txias, tus nqi lim, thiab lub xeev kev ntxhov siab. Raws li qhov kub thiab txias nce, lub zog tawm los ntawm seamless steel yeeb nkab kuj nce, tshwj xeeb tshaj yog thaum lub cev-centered cubic hlau yog rhiab heev rau qhov kub thiab txias npaum li cas, uas yuav ua rau qis kub embrittlement ntawm cov hlau. Kev cuam tshuam rau lub xeev kev ntxhov siab kuj tseem ceeb heev. Txawm hais tias lub zog tawm los yog qhov ntsuas tseem ceeb uas cuam tshuam qhov kev ua tau zoo ntawm cov khoom tsim, lub zog tawm los sib txawv vim muaj kev ntxhov siab sib txawv.
Cov yam tseem ceeb uas cuam tshuam rau lub zog tawm los yog: daim ntawv cog lus, koom haum, qauv, thiab atomic xwm. Yog tias peb piv cov txiaj ntsig zoo ntawm seamless yeeb nkab hlau nrog ceramics thiab polymer cov ntaub ntawv, peb tuaj yeem pom los ntawm nws tias kev cuam tshuam ntawm kev sib txuas lus yog qhov teeb meem tseem ceeb.