Nhazi nke igwe anaghị agba nchara

Enwere ike kewaa igwe anaghị agba nchara n'ime austenitic igwe anaghị agba nchara, ferritic igwe anaghị agba nchara, martensitic igwe anaghị agba nchara na duplex igwe anaghị agba nchara dị ka metallographic Ọdịdị ya.

(1) Austenitic igwe anaghị agba nchara

Usoro okpomọkụ nke ime ụlọ nke austenitic igwe anaghị agba nchara bụ austenite, nke a na-emepụta site na ịgbakwunye nickel kwesịrị ekwesị na nnukwu chromium igwe anaghị agba nchara.

Austenitic igwe anaghị agba nchara nwere usoro austenite kwụsiri ike naanị mgbe Cr nwere ihe dịka 18%, Ni 8% ruo 25%, yana C gbasara 0.1%. Austenitic igwe anaghị agba nchara dabeere na Cr18Ni9 ígwè alloy. Site na ojiji dị iche iche, a na-emepụta usoro isii nke igwe anaghị agba nchara austenitic.

Ọkwa nkịtị nke austenitic igwe anaghị agba nchara:
(1) 1Cr17Mn6Ni15N; (2) 1Cr18Mn8Ni5N; (3) 1Cr18Ni9; (4) 1Cr18Ni9Si3; (5) 06Cr19Ni10; (6) 00Cr19Ni10; (7) 0Cr19Ni9N; (8) 0Cr19Ni10NbN; (9) 00Cr18Ni10N; (10) 1Cr18Ni12; (11) 0Cr23Ni13; (12) 0Cr25Ni20; (13) 0Cr17Ni12Mo2; (14) 00Cr17Ni14Mo2; (15) 0Cr17Ni12Mo2N; (16) 00Cr17Ni13Mo2N; (17) 1Cr18Ni12Mo2Ti; (18) 0Cr; 1Cr18Ni12Mo3Ti; (20) 0Cr18Ni12Mo3Ti; (21) 0Cr18Ni12Mo2Cu2; (22) 00Cr18Ni14Mo2Cu2; (23) 0Cr19Ni13Mo3; (24) 00Cr19Ni13Mo3; (25) 0Cr18Ni16Mo5; (26) 1Cr18Ni9Ti; (27) (29) 0Cr18Ni; 0Cr18Ni13Si4;

Austenitic igwe anaghị agba nchara nwere nnukwu ego nke Ni na Cr, na-eme ka ígwè austenite na ụlọ okpomọkụ. Ọ nwere ezigbo plasticity, ike, weldability, corrosion resistance na-abụghị magnetik ma ọ bụ adịghị ike magnetik Njirimara. Ọ nwere ezigbo nguzogide corrosion na oxidizing na ibelata mgbasa ozi. A na-eji ya eme akụrụngwa na-eguzogide acid, dị ka arịa na-eguzogide corrosion na mkpuchi akụrụngwa na njem. Ọkpụkpọ, akụkụ akụrụngwa na-eguzogide nitric acid, wdg, nwekwara ike iji dị ka isi ihe ịchọ mma. Igwe anaghị agba nchara Austenitic n'ozuzu na-anabata ọgwụgwọ ngwọta, ya bụ, a na-ekpo ọkụ nchara ahụ na 1050 ruo 1150 Celsius, wee mee ka mmiri dị jụụ ma ọ bụ mee ka ikuku dị jụụ iji nweta otu usoro austenite.

(2) ferritic igwe anaghị agba nchara

Ọkwa igwe anaghị agba nchara ferritic a na-ejikarị: (1) 1Cr17; (2) 00Cr30Mo2; (3) 00Cr17; (4) 00Cr17; (5) 1Cr17Mo; (6) 00Cr27Mo;

Ferritic igwe anaghị agba nchara bụ igwe anaghị agba nchara nke usoro ya bụ tumadi ferrite na ụlọ okpomọkụ. Ọdịnaya Chromium bụ 11% -30%, nguzogide corrosion ya, siri ike na weldability na-abawanye site na mmụba nke ọdịnaya chromium, nrụgide corrosion chloride dị mma karịa ụdị igwe anaghị agba nchara ọzọ, ụdị nchara n'ozuzu enweghị nickel, mgbe ụfọdụ Ọ nwekwara obere Mo, Ti, Nb na ihe ndị ọzọ. Ụdị nchara a nwere njirimara nke nnukwu ikuku okpomọkụ, obere mgbasawanye mgbasa ozi, ezigbo nguzogide oxidation, na nrụgide corrosion kacha mma. A na-ejikarị ya emepụta nguzogide ikuku, uzuoku mmiri, mmiri na acid oxidizing. Akụkụ ndị mebiri emebi. Otú ọ dị, ihe eji arụ ọrụ na arụ ọrụ usoro adịghị mma, a na-ejikarị ha eme ihe na ụlọ ndị na-eguzogide acid na obere nrụgide na dị ka ígwè mgbochi oxidation. Ọ nwekwara ike ịmepụta akụkụ ndị na-arụ ọrụ na okpomọkụ dị elu, dị ka akụkụ turbine gas.