1 、 Lub zog: muaj peev xwm ntawm cov khoom siv hlau kos npe los tiv thaiv yas deformation lossis tawg hauv qab.
1. Cov cim sawv cev: tawm dag zog σ S - yam tsawg kawg kev nyuaj siab thaum cov khoom tawm los. Chav tsev yog MPa.
2. Tensile zog σ B - qhov siab tshaj plaws los ntawm cov khoom ua ntej tawg. Chav tsev yog MPa.
3. Cov xwm txheej thov thiab thaj tsam: lub hauv paus tseem ceeb rau kev tsim cov khoom siv tshuab thiab xaiv cov khoom siv.
2 、 Hardness: lub peev xwm los tiv thaiv deformation thaum lwm yam khoom raug nias hauv qhov ntim hauv cheeb tsam ntawm cov khoom siv hlau kos npe.
1. Cim: Brinell hardness HB; Rockwell hardness hr.
2. Cov ntawv thov thiab thaj tsam: Brinell hardness feem ntau yog siv los ntsuas cov hlau cam khwb cia hlau, cov pa hlau tsis yog hlau, ua kom huv, ua kom zoo dua qub thiab ua kom sov thiab ua kom sov thiab lwm yam khoom siv. HBS yog qhov tsim nyog rau ntsuas cov ntaub ntawv nrog tus nqi hardness tsawg dua 450, thiab HBW yog qhov tsim nyog rau ntsuas cov ntaub ntawv nrog cov nqi nyuaj tsawg dua 650. Rockwell hardness tester tuaj yeem ntsuas cov khoom siv hlau thiab cov khoom siv hlau nyuaj. HRA feem ntau yog siv los ntsuas cov cemented carbide thiab cov hlau tawv tawv; HRB feem ntau yog siv los ntsuas cov hlau me me, cov hlau ci, tooj liab hlau, thiab lwm yam; HRC feem ntau yog siv los ntsuas dav hlau quenched.
3 、 Plasticity: lub peev xwm ntawm cov khoom siv hlau kos npe los tsim cov yas deformation yam tsis tawg hauv qab.
1. Cim: elongation tom qab tawg δ ---- Txheeb ze elongation ntawm gauge ntev tom qab cov khoom tawg.
2. Kev txo qis ntawm thaj chaw ψ—— Cov txheeb ze sib zog ntawm cov ntu ntu ntu ntawm cov qauv tom qab tawg.
3. Cov xwm txheej thov thiab thaj tsam: lub hauv paus tseem ceeb rau kev xaiv cov khoom thaum lub sijhawm ua haujlwm siab.
4 、 Lub zog qaug zog: qhov siab tshaj plaws ntawm cov hlau kos npe cov khoom yam tsis tawg hauv qhov rov ua dua.
1. Cov cim sawv cev: qaug zog δ- ib
2. Daim ntawv thov kev ua haujlwm thiab thaj tsam: lub zog thib 7 ntawm cov hlau tsis muaj lub voj voog 10, thiab lub zog thib 8 ntawm cov ntawv hlau tsis yog hlau thiab qee lub zog muaj zog siab ua haujlwm 10.
5 、 Cov tawv tawv: lub peev xwm ntawm cov khoom siv hlau kos npe los tiv thaiv kev cuam tshuam yam tsis muaj kev puas tsuaj.
1. Cov cim sawv cev: cuam tshuam kev nqus lub zog AK; Qhov cuam tshuam tawv tawv AK.
2. Cov xwm txheej thov thiab thaj tsam: qhov cuam tshuam qhov nyuaj feem ntau tsuas yog siv los siv rau kev xaiv cov ntaub ntawv, tsis yog los suav qhov pib. Kev cuam tshuam ntau yam ntawm cov khoom siv feem ntau yog nyob ntawm cov yas; Kev cuam tshuam lub zog feem ntau yog nyob ntawm lub zog.
