GNEE 7075-T6 vs 7075-T62 Aluminium Alloys: Khoom, Kev Ua Haujlwm, thiab Daim Ntawv Thov
GNEE 7075-T6 thiab GNEE 7075-T62 aluminium alloys yog ob leeg cov tswv cuab ntawm7000 series txhuas alloys, dav siv nyob rau hauvaerospace, tub rog, thiab siab - siv cov qauv siv. Thaum lawvchemical compositions yeej tseem zoo tib yam, qhov sib txawv tseem ceeb ntawm ob lub tempers no nyob hauv lawvcov txheej txheem kho cua sov, uas ua rau muaj qhov sib txawv ntawm kev ua haujlwm ntawm kev siv tshuab.
Kev ua tau zoo sib txawv
GNEE 7075-T6yog qhov zoo dua rau cov ntawv thov uas tseem ceebsiab tensile zog thiab yield zog. Nws yog feem ntau siv nyob rau hauv siab - load structural Cheebtsam tab sis muaj kuj qis zog tiv thaiv thiab puas toughness.
GNEE 7075-T62yog qhov tsim nyog rau cov khoom uas raugrov qab los yog cyclic loading. Nws muabtxhim kho qaug zog thiab nto hardness, nrog rau kev hnav zoo dua, ntawm tus nqi ntawm qee lub zog tensile thiab ductility.
Kev sib piv ntawm GNEE 7075-T6 thiab GNEE 7075-T62 Aluminium Alloys
| Khoom | GNEE 7075-T6 | GNEE 7075-T62 |
|---|---|---|
| Alloy Composition | Zn, Mg, Cu, thiab lwm yam. | Zn, Mg, Cu, thiab lwm yam. |
| Kev kho cua sov | Kev kho cua sov + kev laus kev laus | Tshuaj kho cua sov thiab ncua kev laus |
| Tensile zog | Siab dua | Tsawg me ntsis |
| Yield zog | Siab dua | Tsawg me ntsis |
| Brinell Hardness | qis | Me ntsis siab dua |
| Elongation ntawm Fracture | Siab dua (zoo dua ductility) | qis |
| Kev qaug zog | qis | Siab dua |
| Corrosion Resistance | Zoo; zoo dua 2000 series, qis dua 5000 series | Zoo ib yam li T6 |
| Ductility | Zoo sib xws | Tsis zoo rau T6 |
| Toughness | qis; ntau nkig ntawm qhov kub thiab txias | Kev txhim kho me ntsis |
| Tej kev siv | Cov qauv dav hlau, siab - cov khoom siv kev ntxhov siab | Kev qaug zog- thauj khoom thiab hnav- cov khoom tiv thaiv |
| Qhov Zoo Tshaj Plaws | Siab zog thiab zoo ductility | High qaug zog lub zog thiab hnav tsis kam |
| Lub ntsiab tsis zoo | Lower tawg toughness, qaug zog kuj | Txo lub zog thiab ductility |
Mechanical Properties Sib piv
| Khoom | GNEE 7075-T6 | GNEE 7075-T62 |
|---|---|---|
| Brinell Hardness | 150 | 160 |
| Elastic Modulus (GPa) | 70 | 70 |
| Elongation ntawm Break (%) | 7.9 | 7.2 |
| Fatigue zog (MPa) | 160 | 170 |
| Poisson tus ratio | 0.32 | 0.32 |
| Shear Modulus (GPa) | 26 | 26 |
| Shear zog (MPa) | 330 | 330 |
| Qhov kawg Tensile Strength (MPa) | 560 | 560 |
| Yield zog (MPa) | 480 | 460 |
Tensile zog: GNEE 7075-T6 muab lub zog siab dua me ntsis, ua rau nws tsim nyog rau cov ntawv thov kom muaj zog zoo li qub.
Hardness: GNEE 7075-T62 qhia marginally siab hardness, qhia zoo dua nto hnav tsis kam.
Ductility: T6 nthuav tawm ntau dua elongation ntawm pob txha, tso cai ntau dua deformation ua ntej tsis ua hauj lwm.
Fatigue Performance: T62 muaj kev txhim kho kev qaug zog, tswj kev ua haujlwm nyob rau hauv ntev - lub sij hawm cyclic loading.
Kev kho cua sov sib txawv
GNEE 7075-T6undergoes kev kho cua sov kom yaj cov ntsiab lus alloying, ua raws li kev laus dag kom ua kom lub zog thiab hardness.
GNEE 7075-T62siv cov txheej txheem zoo sib xws tab sis suav nroglub sij hawm laus dua, hloov kho lub microstructure los txhim kho qaug zog lub zog thiab nto hardness. Qhov no ua rau txo qis toughness thiab ductility piv rau T6.
Corrosion Resistance
GNEE 7075-T6 thiab GNEE 7075-T62 txhuas alloys nthuav tawmzoo corrosion kuj tshaj 2000 series alloys, txawm lawv yogtsawg dua corrosion-resistant dua 3000 thiab 5000 series txhuas. Lawv cov ntsiab lus zinc siab dua txhim kho kev ua haujlwm corrosion, tab sis kev tiv thaiv ntxiv yuav tsum tau muaj nyob rau hauv ib puag ncig hnyav xws li marine tej yam kev mob.
Ductility thiab Toughness
GNEE 7075-T6muaj qhov zoo ductility tab sis kuj qis dua toughness, tshwj xeeb tshaj yog nyob rau hauv qis kub qhov twg brittleness yuav ua ib qho kev txhawj xeeb.
GNEE 7075-T62muab kev ua kom qaug zog tus cwj pwm thiab ua kom zoo dua me ntsis hauv kev siv cyclic, txawm hais tias nws cov ductility yog me ntsis txo.
Cov lus pom zoo rau kev thov
GNEE 7075-T6
Zoo tagnrho rau aerospace thiab tub rog Cheebtsam xws li aircraft fuselages, tis spars, airframe structures, engine qhov chaw, thiab lwm yam siab -stress structural hais qhov twgMaximum tensile thiab yield zogyuav tsum tau.
GNEE 7075-T62
Zoo dua haum rau aerospace thiab mechanical Cheebtsam raug raurov loading, vibration, los yog hnav, qhov twgqaug zog kuj thiab nto hardnessyog qhov tseem ceeb tshaj qhov siab tshaj lub zog.
Cov ntsiab lus xaiv
XaivGNEE 7075-T6thaum lub zog thiab thauj khoom- muaj peev xwm ntawm cov kabmob yog cov qauv tsim qauv.
XaivGNEE 7075-T62thaum lub sij hawm ntev - qaug zog kev ua tau zoo, hnav tsis kam, thiab kav ntev nyob rau hauv cyclic kev nyuaj siab yog qhov tseem ceeb xav txog.
