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Nickel dị ọcha nke azụmahịa

Usoro ọgwụ

Ni

Isiokwu Ekpuchiri

ndabere

Azụmahịa dị ọcha ma ọ bụobere nickel alloyna-achọta isi ngwa ya na nhazi kemịkalụ na ngwá electronic.

Nguzogide corrosion

N'ihi nguzogide corrosion nke nickel dị ọcha, karịsịa na kemịkalụ dị iche iche na-ebelata yana karịsịa na caustic alkalis, a na-eji nickel na-ejigide àgwà ngwaahịa n'ọtụtụ mmeghachi omume kemịkal, karịsịa nhazi nke nri na mmepụta eriri sịntetik.

Njirimara nke nickel dị ọcha nke azụmahịa

Atụlere yananickel alloys, nickel dị ọcha na-ere ahịa nwere ụkpụrụ eletrik dị elu, okpomọkụ Curie dị elu na ezigbo magnetostrictive Njirimara.A na-eji nickel eme ihe maka wires ụzọ eletrọnịkị, akụrụngwa batrị, thyratrons na electrodes na-egbuke egbuke.

Nickel nwekwara ezigbo okpomọkụ conductivity.Nke a pụtara na enwere ike iji ya mee ihe maka ndị na-ekpo ọkụ na gburugburu ebe ndị na-emebi emebi.

Isiokwu 1. Njirimara nkeNickel 200, ọkwa dị ọcha nke azụmahịa (99.6% Ni).

Ngwongwo Uru
Ike Tensile Annealed na 20°C 450MPa
Nchegbu 0.2% agbanyere na 20°C 150MPa
Mgbatị (%) 47
Njupụta 8.89g / cm3
Oke agbaze 1435-1446°C
Okpomọkụ akọwapụtara 456 J/kg.Celsius C
Okpomọkụ Curie 360°C
Ikike nke ikwu Nke mbụ 110
  Kachasị 600
Na-arụ ọrụ nke ọma ma ọ bụrụ na Mgbasawanye (20-100°C) 13.3×10-6m/m.°C
Nrụpụta okpomọkụ 70W/m.°C
Eletriki Resistivity 0.096×10-6ohm.m

Nrụpụta nke nickel

Anneedednickelnwere obere ike na ezigbo ductility.Nickel, dị ka ọla edo, ọlaọcha na ọla kọpa, nwere ọnụ ọgụgụ na-arụsi ọrụ ike dị ntakịrị, ya bụ, ọ naghị adị ka ike na kenkuwa mgbe ọ na-ehulata ma ọ bụ nrụrụ ọzọ dị ka ọtụtụ ọla ndị ọzọ.Àgwà ndị a, jikọtara ya na ezigbo weldability, na-eme ka ígwè ahụ dị mfe ịmepụta n'ime ihe ndị emechara.

Nickel na chromium plating

A na-ejikarị nickel eme ihe dị ka uwe mkpuchi n'ime ihe ịchọ mma chromium.A na-ebu ụzọ were akwa akwa akwa akwa ngwaahịa ahụ, dị ka ihe nkedo ọla ma ọ bụ zinc ma ọ bụ ịpị ígwè.nickelihe dị ka 20µm ọkpụrụkpụ.Nke a na-enye ya nguzogide corrosion.Uwe ikpeazụ bụ 'flash' dị gịrịgịrị (1-2µm) nke chromium iji nye ya agba na nkwụsi ike nke a na-ewerekarị dị ka ihe a na-achọsi ike na ngwa a kpụrụ akpụ.Chromium naanị ga-enwe nguzogide corrosion na-adịghị anakwere n'ihi ọdịdị chromium electroplate na-agbapụtakarị.

Tebụl akụrụngwa

Ihe onwunwe Nickel - Njirimara, Nrụpụta na Ngwa nke Nickel Dị Ọcha Azụmahịa
Ihe mejupụtara: > 99% Ni ma ọ bụ karịa

 

Ngwongwo Uru kacha nta (SI) Uru kacha (SI) Nkeji (SI) Uru kacha nta (Imp.) Uru kacha (Imp.) Nkeji (Imp.)
Olu Atọmk (nkezi) 0,0065 0,0067 m3/km 396,654 408,859 na 3/km
Njupụta 8.83 8.95 mg/m3 551.239 558,731 lb/ft3
Ọdịnaya ike 230 690 MJ/kg 24917.9 74753.7 kcal/lb
Nnukwu Modul 162 200 GPA 23.4961 29.0075 106 psi
Ike mkpakọ 70 935 MPa 10.1526 135.61 ksi
Ịdị ike 0.02 0.6   0.02 0.6  
Oke ngbanwe 70 935 MPa 10.1526 135.61 ksi
Oke ntachi obi 135 500 MPa 19.5801 72.5188 ksi
Mgbaji siri ike 100 150 MPa.m1/2 91,0047 136.507 ksi.in1/2
Isi ike 800 3000 MPa 116.03 435.113 ksi
Ọnụ ego efu 0,0002 0,0032   0,0002 0,0032  
Modul nke mgbawa 70 935 MPa 10.1526 135.61 ksi
Oke Poisson 0,305 0,315   0,305 0,315  
Shear Modul 72 86 GPA 10,4427 12,4732 106 psi
Ike ọdụdọ 345 1000 MPa 50.038 145.038 ksi
Modul nke Young 190 220 GPA 27.5572 31.9083 106 psi
Okpomọkụ iko     K     °F
Okpomọkụ nke Fusion 280 310 kJ/kg 120.378 133.275 BTU/lb
Okpomọkụ ọrụ kacha 510 640 K 458.33 692.33 °F
Ebe mgbaze 1708 1739 K 2614.73 2670.53 °F
Okpomọkụ ọrụ kacha nta 0 0 K -459.67 -459.67 °F
Okpomọkụ akọwapụtara 452 460 J/kg.K 0,349784 0,355975 BTU/lb.F
Nrụpụta okpomọkụ 67 91 W/mK 125.426 170.355 BTU.ft/h.ft2.F
Mgbasawanye okpomọkụ 12 13.5 10-6/K 21.6 24.3 10-6/°F
Enwere ike imebi     MV/m     V/mil
Dielectric Constant            
Nguzogide 8 10 10-8 ohm 8 10 10-8 ohm

 

Njirimara gburugburu ebe obibi
Ihe Nguzogide 1= Ogbenye 5= Ọkachamma
Ịkụ ọkụ 5
Mmiri dị ọcha 5
Ihe mgbaze Organic 5
Oxidation na 500C 5
Mmiri mmiri 5
Acid siri ike 4
Alkalis siri ike 5
UV 5
Yiri 4
Acid adịghị ike 5
Alkalis adịghị ike 5

 

Isi mmalite: Ewepụtara na Handbook of Engineering Materials, Mbipụta nke ise.

Maka ozi ndị ọzọ gbasara isi iyi a biko gaaThe Institute of Materials Engineering Australasia.

 

Nickel n'ụdị elementrị ma ọ bụ alloyed ya na ọla na ihe ndị ọzọ enyela nnukwu onyinye na obodo anyị nke oge a ma kwe nkwa na ọ ga-aga n'ihu na-enye ihe maka ọdịnihu na-achọsi ike karị.Nickel abụrụla ọla dị mkpa maka ọtụtụ ụlọ ọrụ dị iche iche n'ihi na ọ bụ ihe na-agbanwe agbanwe nke ukwuu nke ga-eji ọtụtụ ọla ndị ọzọ jupụta.

Nickel bụ ihe na-agbanwe agbanwe na ọ ga-eji ọtụtụ ọla mee ihe.Nickel alloys bụ alloys nwere nickel dị ka ihe bụ isi.Solubility siri ike zuru oke dị n'etiti nickel na ọla kọpa.Oke solubility dị n'etiti ígwè, chromium, na nickel na-eme ka enwere ọtụtụ ngwakọta alloy.Ọganihu dị elu ya, jikọtara ya na okpomọkụ ya pụtara ìhè na nguzogide corrosion emeela ka o jiri ya mee ihe n'ụdị ngwa dị iche iche;dị ka ụgbọ elu gas turbines, uzuoku turbines na ike ọkụ na ọtụtụ ojiji ya na ike na nuklia ike ahịa.

Ngwa na njirimara nke nickel Alloys

Nickel na nickel alloysA na-eji ngwa dị iche iche eme ihe, ọtụtụ n'ime ha gụnyere nguzogide corrosion na/ma ọ bụ nguzogide okpomọkụ.Ụfọdụ n'ime ndị a gụnyere:

  • Ụgbọ elu gas turbin
  • Ụlọ ọrụ ọkụ turbine Steam
  • Ngwa ahụike
  • Usoro ike nuklia
  • Ụlọ ọrụ chemical na petrochemical
  • Ndị na-ekpo ọkụ na ihe mgbochi
  • Isolators na actuators maka nkwurịta okwu
  • Akpaaka Spark plọg
  • Ihe eji agbado ọkụ
  • Igwe ọkụ

Ọnụ ọgụgụ ndị ọzọngwa maka nickel alloysna-etinye ihe pụrụ iche anụ ahụ nke ihe nickel dabere ma ọ bụ nnukwu nickel alloys nwere ebumnuche pụrụ iche.Ndị a gụnyere:

 


Oge nzipu: Ọgọst-04-2021