Nhazi nke ígwè anaghị agba nchara

Enwere ike kewaa ígwè anaghị agba nchara ụzọ abụọ: austenitic anaghị agba nchara, ferritic anaghị agba nchara, martensitic anaghị agba nchara na duplex anaghị agba nchara dịka usoro metallographic ya si dị.

(1) Austenitic igwe anaghị agba nchara

Ọdịdị okpomọkụ ụlọ nke austenitic igwe anaghị agba nchara bụ austenite, nke a na-emepụta site na itinye nickel kwesịrị ekwesị na ígwè anaghị agba nchara chromium dị elu.

A na-eji ígwè anaghị agba nchara Austenitic eme ihe nke ọma naanị mgbe Cr nwere ihe dị ka 18%, Ni 8% ruo 25%, na C ihe dị ka 0.1%. A na-eji ígwè anaghị agba nchara Austenitic eme ihe nke ọma site na ihe e ji ígwè mee nke Cr18Ni9. Site n'iji ya mee ihe dị iche iche, e mepụtala usoro ígwè anaghị agba nchara isii austenitic.

Ụdị 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;

Ígwè anaghị agba nchara Austenitic nwere nnukwu Ni na Cr, nke na-eme ka ígwè ahụ dị ka austenite n'ọnọdụ okpomọkụ ụlọ. Ọ nwere ezigbo ike, ike, ike ịgbado ọkụ, iguzogide nchara na ihe ndị na-abụghị magnetik ma ọ bụ ihe ndọta adịghị ike. Ọ nwere ezigbo ike iguzogide nchara na ibelata mgbasa ozi. A na-eji ya eme ihe eji eme ihe ndị na-eguzogide acid, dị ka akpa ndị na-eguzogide nchara na mkpuchi akụrụngwa na njem. Enwere ike iji paịpụ, akụkụ akụrụngwa na-eguzogide nitric acid, wdg, dị ka ihe bụ isi nke ihe ịchọ mma. Ígwè anaghị agba nchara Austenitic na-ejikarị ọgwụgwọ ngwọta eme ihe, ya bụ, a na-ekpo ọkụ ígwè ahụ ruo 1050 ruo 1150°C, wee jiri mmiri oyi ma ọ bụ ikuku mee ka ọ dị jụụ iji nweta nhazi austenite otu-usoro.

(2) ígwè anaghị agba nchara ferritic

A na-ejikarị ígwè anaghị agba nchara ferritic eme ihe: (1) 1Cr17; (2) 00Cr30Mo2; (3) 00Cr17; (4) 00Cr17; (5) 1Cr17Mo; (6) 00Cr27Mo;

Iron ígwè anaghị agba nchara Ferritic bụ ígwè anaghị agba nchara nke ihe owuwu ya bụ ferrite n'ọnọdụ okpomọkụ ụlọ. Ọdịnaya Chromium dị 11%-30%, ike ya na-eguzogide nchara, ike ya na ịgbado ọkụ na-abawanye ka ọdịnaya chromium na-abawanye, ike nrụgide chloride na-eguzogide nchara ka mma karịa ụdị ígwè anaghị agba nchara ndị ọzọ, ụdị ígwè a anaghị enwe nickel, mgbe ụfọdụ, ọ nwekwara obere Mo, Ti, Nb na ihe ndị ọzọ. Ụdị ígwè a nwere njirimara nke nnukwu ike okpomọkụ, obere ihe na-agbasa, ezigbo ike ọgwụgwụ oxidation, na ezigbo ike ọgwụgwụ nrụgide. A na-ejikarị ya emepụta ike ọgwụgwụ ikuku, uzuoku mmiri, mmiri na asịd oxidizing. Akụkụ ndị mebiri emebi. Agbanyeghị, ihe onwunwe igwe na arụmọrụ usoro adịghị mma, a na-ejikwa ha eme ihe n'ụdị ndị na-eguzogide acid na-enweghị nrụgide na dị ka ígwè mgbochi oxidation. Ọ nwekwara ike ịmepụta akụkụ ndị na-arụ ọrụ na okpomọkụ dị elu, dị ka akụkụ gas turbine.