Usoro ọgwụ

Ni

Isiokwu Ekpuchiri

• ndabere
• Nguzogide corrosion
• Njirimara nke nickel dị ọcha nke azụmahịa
• Nrụpụta nke nickel

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).

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

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 ọha 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 na ebumnuche pụrụ iche ma ọ bụ nnukwu nickel alloys. Ndị a gụnyere:

• Alloys iguzogide eletrik
• Nickel-Chromium alloysnaNickel-Chromium-Iron alloys
• Ọla kọpa-Nickel alloysmaka ọkụ ọkụ
• Thermocouple Alloysmaka sensọ na eriri
• Nickel ọla kọpa alloysmaka Ịkpa akwa
• Igwe ndọta dị nro
• Alloys mgbasawanye achịkwara
• Ihe eji agbado ọkụ
• Dumet wayamaka Glass ka metal akara
• Nickel plated ígwè
• Alloys ọkụ