Tshuaj Formula
Ni
Cov ntsiab lus npog
Keeb kwm
Kev lag luam ntshiab los yogqis alloy nickelpom nws daim ntawv thov tseem ceeb hauv kev ua tshuaj lom neeg thiab hluav taws xob.
Corrosion Resistance
Vim yog cov ntshiab nickel corrosion kuj, tshwj xeeb tshaj yog rau ntau yam kev txo cov tshuaj thiab tshwj xeeb tshaj yog rau caustic alkalis, npib tsib xee yog siv los tswj cov khoom zoo hauv ntau cov tshuaj tiv thaiv, tshwj xeeb tshaj yog cov khoom noj thiab cov khoom siv hluavtaws.
Cov khoom ntawm Commercially Ntshiab Nickel
Piv raunpib tsib xee alloys, ua lag luam ntshiab nickel muaj hluav taws xob conductivity, siab Curie kub thiab zoo magnetostrictive zog. Nickel yog siv rau cov hlau lead hauv hluav taws xob, cov khoom siv roj teeb, thyratrons thiab sparking electrodes.
Nickel kuj muaj cov thermal conductivity zoo. Qhov no txhais tau hais tias nws tuaj yeem siv rau cov khoom siv hluav taws xob sib txawv hauv qhov chaw corrosive.
Table 1. Khoom ntawmNickel 200, qib kev lag luam ntshiab (99.6% Ni).
| Khoom | Tus nqi | |
| Annealed Tensile Strength ntawm 20 ° C | 450 MPa | |
| Annealed 0.2% Pov Thawj Stress ntawm 20 ° C | 150 MPa | |
| Elongation (%) | 47 | |
| Qhov ntom | 8.89g 3 | |
| Melting Range | 1435-1446 ° C | |
| Tshwj xeeb kub | 456 J/kg °C | |
| Curie Kub | 360 ° C | |
| txheeb ze Permeability | Pib | 110 |
| Qhov siab tshaj plaws | 600 | |
| Co-Efficient yog Expansion (20-100 ° C) | 13.3 × 10-6m / m ° C | |
| Thermal conductivity | 70W / m ° C | |
| Hluav taws xob Resistivity | 0.096 × 10-6ohm.m | |
Fabrication ntawm Nickel
Annealednpib tsib xeemuaj ib tug tsawg hardness thiab zoo ductility. Nickel, zoo li kub, nyiaj thiab tooj liab, muaj qhov ua haujlwm qis qis, piv txwv li nws tsis zoo li nyuaj thiab nkig thaum nws khoov lossis lwm yam deformed li ua lwm yam hlau. Cov cwj pwm no, ua ke nrog zoo weldability, ua rau cov hlau yooj yim rau fabricate rau hauv cov khoom tiav.
Nickel hauv Chromium Plating
Nickel kuj nquag siv los ua cov tsho hauv qab hauv cov hniav chromium plating. Cov khoom nyoos, xws li tooj dag lossis zinc casting lossis ib daim ntawv hlau nias yog thawj plated nrog ib txheej ntawmnpib tsib xeekwv yees li 20µm tuab. Qhov no muab nws cov corrosion kuj. Lub tsho tiv no zaum kawg yog nyias 'flash' (1-2µm) ntawm chromium kom nws muaj xim thiab tarnish tsis kam uas feem ntau suav hais tias xav tau ntau dua hauv cov khoom siv plated. Chromium ib leeg yuav tsis muaj peev xwm tiv thaiv corrosion vim tias feem ntau ntxeem tau ntawm chromium electroplate.
Khoom Table
| Khoom siv | Nickel - Cov khoom, Fabrication thiab kev siv cov khoom lag luam ntshiab Nickel |
|---|---|
| Kev sib xyaw: | > 99% Ni los yog zoo dua |
| Khoom | Yam tsawg kawg nkaus tus nqi (SI) | Tus nqi siab tshaj (SI) | Units (SI) | Yam tsawg kawg nkaus tus nqi (Imp.) | Tus nqi siab tshaj (Imp.) | Units (Imp.) |
|---|---|---|---|---|---|---|
| Atomic Volume (nruab nrab) | 0.006 5 | 0.0067 ib | m3/km | 396.654 ib | 408.859 ib | hauv 3/km |
| Qhov ntom | 8.83 ib | 8.95 ib | mg/m3 | 551.239 ib | 558.731 ib | lb/ft 3 |
| Cov ntsiab lus zog | 230 | 690 ib | MJ/kg | 24917.9 ib | 7 4753.7 | kcal/lb |
| Bulk Modulus | 162 | 200 | GPa | 23.4961 Nws | 29.0075 Nws | 106psi ua |
| Compressive zog | 70 | 935 ua | MPa | 10.1526 Nws | 135.61 Nws | ksi ua |
| Ductility | 0.02 ib | 0.6 | 0.02 ib | 0.6 | ||
| Elastic txwv | 70 | 935 ua | MPa | 10.1526 Nws | 135.61 Nws | ksi ua |
| Endurance txwv | 135 | 500 | MPa | 19.5801 Nws | 72.5188 ib | ksi ua |
| Fracture Toughness | 100 | 150 | MPa.m1/2 | 91.0047 ib | 136.507 Nws | ksi.in 1/2 |
| Hardness | 800 | 3000 | MPa | 116.03 Nws | 435.113 ib | ksi ua |
| Loss Coefficient | 0.0002 | 0.0032 ib | 0.0002 | 0.0032 ib | ||
| Modulus ntawm Repture | 70 | 935 ua | MPa | 10.1526 Nws | 135.61 Nws | ksi ua |
| Poisson tus ratio | 0.305 Nws | 0.315 ib | 0.305 Nws | 0.315 ib | ||
| Shear Modulus | 72 | 86 | GPa | 10.4427 Nws | 12.4732 Nws | 106psi ua |
| Tensile zog | 345 | 1000 | MPa | 50.038 ib | 145.038 Nws | ksi ua |
| Young's Modulus | 190 | 220 | GPa | 27.5572 Nws | 31.9083 ib | 106psi ua |
| iav kub | K | ° F | ||||
| Latent Kub ntawm Fusion | 280 | 310 | kJ/kg | 120.378 Nws | 133.275 Nws | BTU/lb |
| Qhov Kev Pab Cuam Siab Tshaj Plaws | 510 | 640 | K | 458.33 ib | 692.33 ib | ° F |
| Melting Point | 1708 ib | 1739 ib | K | 2614.73 ib | 2670.53 ib | ° F |
| Yam tsawg kawg ntawm Kev Pabcuam Kub | 0 | 0 | K | -459.67 | -459.67 | ° F |
| Tshwj xeeb kub | 452 ib | 460 | J/Kg | 0.349784 ib | 0.355975 ib | BTU/lb.F |
| Thermal conductivity | 67 | 91 | W/mK | 125.426 Nws | 170.355 Nws | BTU.ft/h.ft2.F |
| Thermal Expansion | 12 | 13.5 Nws | 10-6 / K | 21.6 ib | 24.3 | 10-6 / ° F |
| Kev tawg muaj peev xwm | MV/m | V/mil | ||||
| Dielectric tsis tu ncua | ||||||
| Kev tiv thaiv | 8 | 10 | 10-8 awm | 8 | 10 | 10-8 awm |
| Environmental Properties | |
|---|---|
| Cov yam ntxwv tsis kam | 1 = Poob 5 = Zoo heev |
| Flammability | 5 |
| Dej ntshiab | 5 |
| Organic Solvents | 5 |
| Oxidation ntawm 500C | 5 |
| Dej hiav txwv | 5 |
| Muaj zog Acid | 4 |
| Muaj zog Alkalis | 5 |
| UV | 5 |
| Hnav | 4 |
| Tsis muaj Acid | 5 |
| Tsis muaj Alkalis | 5 |
Tau qhov twg los: Abstracted los ntawm Phau Ntawv ntawm Engineering Materials, 5th Edition.
Yog xav paub ntxiv txog qhov chaw no thov mus saibLub koom haum ntawm Material Engineering Australia.
Nickel nyob rau hauv cov ntaub ntawv elemental lossis alloyed nrog lwm cov hlau thiab cov ntaub ntawv tau ua rau muaj txiaj ntsig zoo rau peb lub neej niaj hnub no thiab cog lus tias yuav muab cov khoom siv ntxiv rau yav tom ntej. Nickel yeej ib txwm yog cov hlau tseem ceeb rau ntau yam kev lag luam rau qhov yooj yim vim li cas nws yog cov khoom siv ntau yam uas yuav alloy nrog rau feem ntau cov hlau.
Nickel yog cov khoom siv ntau yam thiab yuav alloy nrog ntau cov hlau. Nickel alloys yog alloys nrog npib tsib xee ua lub ntsiab tseem ceeb. Ua kom tiav cov khoom solubility muaj nyob nruab nrab ntawm nickel thiab tooj liab. Kev solubility dav dav ntawm cov hlau, chromium, thiab npib tsib xee ua tau ntau qhov sib xyaw ua ke. Nws lub siab versatility, ua ke nrog nws zoo heev tshav kub thiab corrosion kuj tau coj mus rau nws siv nyob rau hauv ntau yam kev siv; xws li Aircraft gas turbines, chav turbines nyob rau hauv fais fab nroj tsuag thiab nws nws kim heev siv nyob rau hauv lub zog thiab nuclear fais fab kev lag luam.
Kev siv thiab cov yam ntxwv ntawm Nickel Alloys
Nickel thiab nickel alloysyog siv rau ntau yam kev siv, feem ntau uas muaj kev tiv thaiv corrosion thiab / lossis kub tsis kam. Qee qhov no suav nrog:
- Aircraft gas turbines
- Chav turbine fais fab nroj tsuag
- Kev siv tshuaj kho mob
- Nuclear fais fab systems
- Chemical thiab petrochemical kev lag luam
- Cua sov thiab Resistance qhov chaw
- Isolators thiab Actuators rau kev sib txuas lus
- Automotive Spark plugs
- Vuam consumables
- Fais fab Cables
Lwm tus lejkev siv rau nickel alloyskoom nrog cov khoom tshwj xeeb ntawm lub cev tshwj xeeb ntawm nickel-based lossis high-nickel alloys. Cov no suav nrog:
- Hluav taws xob kuj alloys
- Nickel-Chromium alloysthiabNickel-Chromium-Hlau alloys
- Tooj-Nickel alloysrau cua sov cables
- Thermocouple alloysrau sensors thiab cables
- Nickel tooj liab alloysrau Weaving-Knitting
- Mos magnetic alloys
- Tswj-expansion alloys
- Vuam Filler Materials
- Dumet kabrau iav rau hlau foob
- Nickel plated hlau
- Teeb pom kev zoo Alloys
Post lub sij hawm: Aug-04-2021