Chemical Formula
Ni
Misoro Yakafukidzwa
Background
Zvekutengesa zvakachena kanalow alloy nickelinowana kushandiswa kwayo kukuru mukugadzirwa kwemakemikari uye zvemagetsi.
Corrosion Resistance
Nekuda kweiyo nickel's corrosion resistance, kunyanya kune akasiyana siyana ekudzikisa kemikari uye kunyanya kune caustic alkalis, nickel inoshandiswa kuchengetedza mhando yechigadzirwa mukuita kwemakemikari akawanda, kunyanya kugadzirwa kwechikafu nekugadzirwa kwefiber.
Zvivakwa zveCommerce Pure Nickel
Kuenzaniswa nenickel alloys, nickel yekutengeserana yakachena ine yakakwirira yemagetsi conductivity, yakakwirira Curie tembiricha uye yakanaka magnetostrictive zvivakwa. Nickel inoshandiswa pamagetsi ekutungamira waya, zvikamu zvebhatiri, thyratron uye ma electrode anopenya.
Nickel zvakare ine yakanaka yekupisa conductivity. Izvi zvinoreva kuti inogona kushandiswa kune zvinopisa kupisa munzvimbo dzinoparadza.
Tafura 1. Properties ofNickel 200, giredhi rekutengeserana rakachena (99.6% Ni).
| Property | Value | |
| Anealed Tensile Simba pa20°C | 450MPa | |
| Yakanamirwa 0.2% Yekusimbisa Stress pa20°C | 150MPa | |
| Elongation (%) | 47 | |
| Density | 8.89g/cm3 | |
| Melting Range | 1435-1446°C | |
| Specific Heat | 456 J/kg. °C | |
| Curie Temperature | 360°C | |
| Relative Permeability | Pakutanga | 110 |
| Maximum | 600 | |
| Kushanda pamwe chete kana Kuwedzera (20-100°C) | 13.3×10-6m/m.°C | |
| Thermal Conductivity | 70W/m.°C | |
| Electrical Resistivity | 0.096×10-6ohm.m | |
Kugadzirwa kweNickel
Annealednickeline kuoma kwakaderera uye yakanaka ductility. Nickel, segoridhe, sirivheri nemhangura, ine mwero wekuomesa basa wakaderera, kureva kuti haiite kunge yakaoma uye brittle kana yakagonya kana kuremara sezvinoita dzimwe simbi zhinji. Uhu hunhu, hwakasanganiswa nekugoneka kwakanaka, hunoita kuti simbi ive nyore kugadzira muzvinhu zvakapedzwa.
Nickel muChromium Plating
Nickel inowanzoshandiswa se undercoat mukushongedza chromium plating. Chigadzirwa chakasvibirira, senge ndarira kana zinc casting kana sheet simbi yekutsikirira inotanga kuputirwa nedhizaini.nickelanenge 20µm mukobvu. Izvi zvinoipa kusaita ngura. Bhachi rekupedzisira i'flash' yakatetepa kwazvo (1-2µm) yechromium kuti ripe ruvara uye kusvibisa kuramba izvo zvinowanzoonekwa seinodiwa zvakanyanya mumidziyo yakapfava. Chromium chete yaizove isingagamuchirwi corrosion resistance nekuda kwekazhinji porous nature yechromium electroplate.
Property Table
| Material | Nickel - Zvivakwa, Kugadzirwa uye Mashandisirwo eCommerce Pure Nickel |
|---|---|
| Kuumbwa: | > 99% Ni kana nani |
| Property | Minimum Value (SI) | Maximum Value (SI) | Zviyero (SI) | Minimum Value (Imp.) | Yakanyanya Kukosha (Imp.) | Units (Imp.) |
|---|---|---|---|---|---|---|
| Atomic Vhoriyamu (avhareji) | 0.0065 | 0.0067 | m3/kmol | 396.654 | 408.859 | mu3/kmol |
| Density | 8.83 | 8.95 | Mg/m3 | 551.239 | 558.731 | lb/ft3 |
| Energy Content | 230 | 690 | MJ/kg | 24917.9 | 74753.7 | kcal/lb |
| Bulk Modulus | 162 | 200 | GPa | 23.4961 | 29.0075 | 106 psi |
| Compressive Strength | 70 | 935 | MPa | 10.1526 | 135.61 | ksi |
| Ductility | 0.02 | 0.6 | 0.02 | 0.6 | ||
| Elastic Limit | 70 | 935 | MPa | 10.1526 | 135.61 | ksi |
| Endurance Limit | 135 | 500 | MPa | 19.5801 | 72.5188 | ksi |
| Kuputsika Kusimba | 100 | 150 | MPa.m1/2 | 91.0047 | 136.507 | ksi.in1/2 |
| Kuoma | 800 | 3000 | MPa | 116.03 | 435.113 | ksi |
| Kurasika Coefficient | 0.0002 | 0.0032 | 0.0002 | 0.0032 | ||
| Modulus yeKuputika | 70 | 935 | MPa | 10.1526 | 135.61 | ksi |
| Poisson's Ratio | 0.305 | 0.315 | 0.305 | 0.315 | ||
| Shear Modulus | 72 | 86 | GPa | 10.4427 | 12.4732 | 106 psi |
| Tensile Simba | 345 | 1000 | MPa | 50.038 | 145.038 | ksi |
| Young's Modulus | 190 | 220 | GPa | 27.5572 | 31.9083 | 106 psi |
| Glass Temperature | K | °F | ||||
| Latent Kupisa kweFusion | 280 | 310 | kJ/kg | 120.378 | 133.275 | BTU/lb |
| Maximum Service Temperature | 510 | 640 | K | 458.33 | 692.33 | °F |
| Melting Point | 1708 | 1739 | K | 2614.73 | 2670.53 | °F |
| Minimum Service Temperature | 0 | 0 | K | -459.67 | -459.67 | °F |
| Specific Heat | 452 | 460 | J/kg.K | 0.349784 | 0.355975 | BTU/lb.F |
| Thermal Conductivity | 67 | 91 | W/mK | 125.426 | 170.355 | BTU.ft/h.ft2.F |
| Thermal Kuwedzera | 12 | 13.5 | 10-6/K | 21.6 | 24.3 | 10-6/°F |
| Kuparara Kunogona | MV/m | V/mil | ||||
| Dielectric Constant | ||||||
| Resistivity | 8 | 10 | 10-8 ohm.m | 8 | 10 | 10-8 ohm.m |
| Environmental Properties | |
|---|---|
| Resistance Factors | 1=Murombo 5=Zvakanaka |
| Kupisa moto | 5 |
| Mvura Yakachena | 5 |
| Organic Solvents | 5 |
| Oxidation pa500C | 5 |
| Mvura yeGungwa | 5 |
| Asidhi yakasimba | 4 |
| Alkalis yakasimba | 5 |
| UV | 5 |
| Pfeka | 4 |
| Weak Acid | 5 |
| Alkalis isina simba | 5 |
Kwakabva: Yakatorwa kubva muHandbook of Engineering Materials, 5th Edition.
Kuti uwane rumwe ruzivo nezve ino sosi ndapota shanyaIyo Institute of Materials Engineering Australasia.
Nickel mune yekutanga fomu kana yakasanganiswa nedzimwe simbi uye zviwanikwa yakaita zvakakosha kunharaunda yedu yemazuva ano uye inovimbisa kuenderera mberi nekupa zvinhu zveramangwana rinotonyanya kudiwa. Nickel yagara iri simbi yakakosha kune akasiyana siyana maindasitiri nekuda kwechikonzero chiri nyore kuti chinhu chakanyanya kuchinjika chinozobatana nemamwe akawanda simbi.
Nickel chinhu chakasiyana-siyana uye chinosanganiswa nesimbi zhinji. Nickel alloys alloys ane nickel sechinhu chikuru. Yakazara yakasimba solubility iripo pakati penickel nemhangura. Kunyungudika kwakakura pakati pesimbi, chromium, uye nickel inoita kuti zvikwanisike misanganiswa yakawanda yealloy. Kuwanda kwayo kwakasiyana-siyana, kusanganiswa nekupisa kwayo kunoshamisa uye kushorwa kwemarara kwakatungamira kushandiswa kwayo mumhando dzakasiyana siyana dzekushandisa; akadai seAircraft gas turbines, turbines mumagetsi emagetsi uye kushandiswa kwayo kwakawanda mumisika yemagetsi neyenyukireya.
Zvishandiso uye Hunhu hweNickel Alloys
Nickel uye nickel alloysanoshandiswa kune akasiyana siyana ekushandisa, mazhinji ayo anosanganisira kushora uye / kana kupisa kupisa. Zvimwe zvacho zvinosanganisira:
- Ndege gasi turbines
- Steam turbine simba zvidyarwa
- Zvikumbiro zvekurapa
- Zvirongwa zvemasimba enyukireya
- Makemikari uye petrochemical maindasitiri
- Heating uye Resistance zvikamu
- Isolators uye Actuators yekutaurirana
- Automotive Spark plugs
- Welding zvinodyiwa
- Power Cables
Zvimwe zvakawandakunyorera nickel alloysinosanganisira iyo yakasarudzika yemuviri zvimiro zveyakakosha-chinangwa nickel-yakavakirwa kana yakakwirira-nickel alloys. Izvi zvinosanganisira:
- Electrical resistance alloys
- Nickel-Chromium alloysuyeNickel-Chromium-Iron alloys
- Copper-Nickel alloysyekudziya tambo
- Thermocouple Alloyszve sensors netambo
- Nickel Copper alloysnokuti Kuruka-Kuruka
- Soft magnetic alloys
- Kudzorwa-kuwedzera alloys
- Welding Filler Zvishandiso
- Dumet wayanokuti Girazi kune chisimbiso chesimbi
- Nickel plated Simbi
- Lighting Alloys
Nguva yekutumira: Aug-04-2021