Chemical, Mechanical, and Physical Property Comparison of 6061 vs . 7075 Aluminium
Txheej txheem cej luam: 6061 Aluminium vs . 7075 Aluminium
NtawmGNEE, aluminium alloy kev sib piv tsom rau qhov tiag -kev ua haujlwm hauv ntiaj teb hauv kev siv tshuab, lub cev, thiab kev ua haujlwm. Ntawm tag nrho cov qib aluminium,6061i7075 ibyog ob qho ntawm cov khoom siv dav siv ntau tshaj plaws, txhua qhov kev pabcuam txawv engineering xav tau. Kom meej meej sib txawv ntawm lawv, kab lus no tshuaj xyuas lawvmechanical zog, tus cwj pwm ntawm lub cev, tshuaj muaj pes tsawg leeg, kev kho cua sov, thiab kev ua haujlwm tag nrho.
Mechanical Properties Sib piv ntawm 6061 vs. 7075 Aluminium
Yield zog
Lub zog tawm los qhia txog cov khoom siv tiv thaiv mus tas li deformation nyob rau hauv kev ntxhov siab.
7075 aluminiummuaj zog tawm los ntawm503 MPa ua
6061 aluminiummuaj zog tawm los ntawm276 MPa ua
Qhov sib txawv loj no qhia tau hais tias 7075 txhuas tuaj yeem tiv taus ntau dua thiab cuam tshuam lub zog yam tsis muaj kev tawm los, ua rau nws zoo tagnrho rau siab -kev nyuaj siab thiab aerospace- qib kev siv. Txawm li cas los xij, lub zog tawm los ntawm 276 MPa lees paub tias 6061 txhuas tseem muab cov qauv kev ua tau zoo thiab nyob deb ntawm qhov tsis yooj yim hauv kev siv engineering.
Elasticity (Elastic Modulus)
Elastic modulus ntsuas nruj thiab elastic rov qab tom qab deformation.
6061 Aluminium:68.9 gvp
7075 Aluminium:71.7 gvp
Vim tias cov txiaj ntsig zoo sib xws, ob qho tib si alloys nthuav tawm ze li tus cwj pwm elastic zoo tib yam. Hauv cov ntawv thov feem ntau, qhov sib txawv ntawm qhov sib txawv ntawm 6061 thiab 7075 txhuas yog qhov tsawg thiab tsis tshua muaj kev txiav txim siab.
Thermal conductivity
Thermal conductivity txiav txim siab npaum li cas cov ntaub ntawv hloov cua sov.
6061 Aluminium: 167 W/m·K
7075 Aluminium: 130 W/m·K
Nrog cov thermal conductivity ntau dua, 6061 txhuas yog qhov zoo dua rau kev siv hluav taws xob zoo xws li cov khoom siv hluav taws xob, hluav taws xob vaj tsev, thiab kev tswj xyuas thermal.
Hluav taws xob Resistivity
Ob lub alloys qhia tau zoo heev hluav taws xob conductivity vim lawv cov nqi qis resistivity:
6061 Aluminium: 3.99 × 10⁻⁸ Ω·m
7075 Aluminium: 5.10 × 10⁻⁸ Ω·m
Txij li thaum 6061 txhuas tau qis dua, nws ua hluav taws xob zoo dua li 7075 txhuas thiab yog li nws nyiam rau cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.
Khoom Hardness
Hardness qhia tsis kam rau qhov chaw indentation thiab hnav.
6061 Aluminium:95 HB
7075 Aluminium:150 HB
Qhov no qhia tau hais tias 7075 txhuas muaj superior hnav tsis kam thiab nto durability. Txawm li cas los xij, ob qho tib si alloys muab txaus hardness rau cov qauv kev lag luam thiab cov qauv siv yam tsis muaj deformation ntau dhau.
Melting Point
Aluminium alloys yaj dhau qhov kub thiab txias vim muaj qhov sib txawv ntawm qhov kub thiab txias.
6061 Aluminium:582-652 degree
7075 Aluminium:477-635 degree
Qhov qis melting ntau ntawm 7075 txhuas yog qhov tseem ceeb hauv kev kho cua sov thiab kev ua thermal, yuav tsum tau tswj qhov kub thiab txias dua piv rau 6061 txhuas.
Kev sib piv tshuaj lom neeg
| Element | 6061 (%) | 7075 (%) |
|---|---|---|
| Silicon (Si) | 0.4–0.8 | Tsawg dua lossis sib npaug li 0.4 |
| Hlau (Fe) | Tsawg dua los yog sib npaug li 0.7 | Tsawg dua los yog sib npaug li 0.5 |
| Copper (Cu) | 0.15–0.4 | 1.2–2.0 |
| Manganese (Mn) | Tsawg dua los yog sib npaug li 0.15 | Tsawg dua los yog sib npaug li 0.3 |
| Magnesium (Mg) | 0.8–1.2 | 2.1–2.9 |
| Chromium (Cr) | 0.04–0.35 | 0.18–0.28 |
| Zinc (Zn) | Tsawg dua los yog sib npaug li 0.25 | 5.1–6.1 |
| Titanium (Ti) | Tsawg dua los yog sib npaug li 0.15 | Tsawg dua los yog sib npaug li 0.2 |
| Aluminium (Al) | Tshuav | Tshuav |
Kev tshuaj ntsuam xyuas
Covsiab zinc thiab tooj liab cov ntsiab lusnyob rau hauv 7075 txhuas ua kom muaj zog zoo tom qab kev kho cua sov tab sis kuj ua rau nws yooj yim rau corrosion. Nyob rau hauv sib piv, 6061 aluminium relies on amagnesium-silicon alloying system, uas muab zoo dua corrosion kuj, weldability, thiab tag nrho cov versatility rau structural thiab fabrication lub hom phiaj.
Common Heat Treatment Tempers
| Kub | Kev piav qhia |
|---|---|
| O | Annealed; siab tshaj ductility, qis zog |
| T4 | Kev kho cua sov- kho tau thiab muaj hnub nyoog |
| T6 | Kev daws cov cua sov- kho thiab muaj hnub nyoog li qub |
| T651 | T6 mob nrog kev ntxhov siab- nyem ncab |
Ob leeg 6061 thiab 7075 txhuas yog nquag nkag rau hauvT6 thiab T651 tempersrau cov ntawv thov uas xav tau lub zog siab thiab qhov ruaj khov.
Mechanical thiab Physical Properties (T6 Condition)
| Khoom | 6061-T6 | 7075-T6 | Chav tsev |
|---|---|---|---|
| Yield zog | 276 | 503 | MPa |
| Qhov kawg Tensile Strength | 310 | 572 | MPa |
| Elastic Modulus | 68.9 | 71.7 | GPa |
| Thermal conductivity | 167 | 130 | W/m·K |
| Melting Range | 582–652 | 477–635 | degree |
| Hardness | 95 | 150 | HB |
| Qhov ntom | 2.70 | 2.81 | g/cm³ |
Kev txhais lus ua haujlwm
Lub zog:7075 aluminium ho dhau 6061 hauv ob qho tib si tawm los thiab lub zog tensile
Kev nruj:Yuav luag zoo ib yam, nrog 7075 yog marginally stiffer
Thermal Performance:6061 excels nyob rau hauv tshav kub dissipation
Hardness:7075 muab kev hnav zoo dua
Temperature Stability:6061 ua tau zoo me ntsis ntawm qhov kub siab
Ceev:7075 hnyav dua tab sis muaj zog dua ib chav tsev ntim
Xaus
Hauv cov ntsiab lus,6061 aluminiumstands rau nws zoo heev corrosion kuj, weldability, hluav taws xob thiab thermal conductivity, thiab versatility zuag qhia tag nrho, ua rau nws haum rau ib tug ntau yam ntawm cov qauv thiab kev siv.7075 aluminium, ntawm qhov tod tes, dominates hauvlub zog, hardness, thiab qaug zog kuj, ua rau nws qhov kev xaiv zoo tshaj plaws rau aerospace, tub rog, thiab siab -load daim ntawv thov.
NtawmGNEE, ob qho tib si 6061 thiab 7075 txhuas cov khoom tau muab rau hauv ntau yam tempers thiab specifications kom tau raws li ntau yam engineering thiab kev ua tau zoo.
