ferritic igwe anaghị agba nchara
Chromium 15% ruo 30%. Ya corrosion eguzogide, siri ike na weldability na-abawanye na-abawanye nke chromium ọdịnaya, na ya iguzogide chloride stress corrosion dị mma karịa ndị ọzọ ụdị igwe anaghị agba nchara, dị ka Crl7, Cr17Mo2Ti, Cr25, Cr25Mo3Ti, Cr28, wdg Ferritic igwe anaghị agba nchara nwere ezi corrosion na-eguzogide na oxidation n'ihi na ya na-arụ ọrụ nke chromium na-eguzogide, ma na-arụ ọrụ chromium na-eguzogide ya. A na-ejikarị ya na ụlọ na-eguzogide acid na nrụgide dị ala yana dị ka ígwè mgbochi oxidation. Ụdị nchara a nwere ike iguzogide corrosion nke ikuku, nitric acid na ngwọta nnu, ma nwee njirimara nke ezigbo nguzogide ikuku oxidation dị elu na obere mgbasawanye ọkụ ọkụ. A na-eji nitric acid na ngwá ọrụ mmepụta ihe nri, a pụkwara iji ya mee akụkụ ndị na-arụ ọrụ na okpomọkụ dị elu, dị ka akụkụ gas turbine, wdg.

Austenitic igwe anaghị agba nchara
Ọ nwere ihe karịrị 18% chromium, yana nwekwara ihe dị ka 8% nickel na obere molybdenum, titanium, nitrogen na ihe ndị ọzọ. Ezigbo arụmọrụ zuru oke, na-eguzogide corrosion site na mgbasa ozi dị iche iche. Akara ule nkịtị nke igwe anaghị agba nchara austenitic bụ 1Cr18Ni9, 0Cr19Ni9 na ndị ọzọ. The Wc nke 0Cr19Ni9 ígwè bụ ihe na-erughị 0.08%, na ígwè nọmba ka akara dị ka "0" Ụdị ígwè a nwere nnukwu ego nke Ni na Cr, nke na-eme ka ígwè austenitic na ụlọ okpomọkụ. Ụdị ígwè a nwere ezi plasticity, siri ike, weldability, corrosion eguzogide na-abụghị magnetik ma ọ bụ na-adịghị ike corrosion na-eguzogide na-eme ka mgbasa ozi na-eguzogide ọgwụ na-eme ka acid na-eguzogide ọgwụ na-eme ka ọ dị mma. akụrụngwa, dị ka arịa na-eguzogide corrosion na akụrụngwa, pipeline, nitric acid na-eguzogide akụrụngwa akụkụ, wdg, na nwekwara ike ji mee ihe dị ka isi ihe nke igwe anaghị agba nchara ngwa ngwa Austenitic igwe anaghị agba nchara n'ozuzu nakweere ngwọta ọgwụgwọ, ya bụ, ígwè na-ekpo ọkụ na 1050-1150 ° C, na mgbe ahụ, mmiri na-ajụ oyi ma ọ bụ ikuku-stenite.

Austenitic-ferritic duplex igwe anaghị agba nchara
Ọ nwere uru nke ma austenitic na ferritic igwe anaghị agba nchara, na nwere superplasticity. Austenite na ferrite nke ọ bụla bụ ihe dị ka ọkara nke igwe anaghị agba nchara. N'ihe gbasara obere carbon, ọdịnaya nke chromium (Cr) bụ 18% ~ 28%, ọdịnaya nke nickel (Ni) bụ 3% ~ 10%. Ụfọdụ nchara nwekwara ihe ndị na-eme ka alloying dị ka Mo, Cu, Si, Nb, Ti, na N. Ụdị ígwè a nwere àgwà nke ma austenitic na ferritic igwe anaghị agba nchara. E jiri ya tụnyere ferrite, ọ nwere plasticity dị elu na ike siri ike, ọ dịghị ụlọ ọkụ ọkụ na-ekpo ọkụ, na-emeziwanye nguzogide corrosion intergranular na ịrụ ọrụ ịgbado ọkụ, ebe ọ na-ejigide ígwè ahụ igwe anaghị agba nchara na-agbaji na 475 ° C, nwere nnukwu ikuku thermal, ma nwee njirimara nke superplasticity. E jiri ya tụnyere igwe anaghị agba nchara austenitic, ọ nwere ike dị elu yana nkwụsi ike nke ukwuu na corrosion intergranular na corrosion nrụgide chloride. Igwe anaghị agba nchara duplex nwere nguzogide corrosion nke ọma ma bụrụkwa igwe anaghị agba nchara na-echekwa nickel.

Igwe anaghị agba nchara nke mmiri ozuzo siri ike
Matrix bụ austenite ma ọ bụ martensite, na akara ule nke mmiri ozuzo siri ike igwe anaghị agba nchara bụ 04Cr13Ni8Mo2Al na ndị ọzọ. Ọ bụ igwe anaghị agba nchara nke nwere ike ime ka ike sie ike (gbasie ike) site na mmiri ozuzo siri ike (nke a makwaara dị ka afọ hardening).

Martensitic igwe anaghị agba nchara
Ike dị elu, mana plasticity adịghị mma na weldability. Ihe akara akara nke martensitic igwe anaghị agba nchara bụ 1Cr13, 3Cr13, wdg, n'ihi ọdịnaya carbon dị elu, ọ nwere ike dị elu, ike siri ike ma na-eyi nguzogide, mana nguzogide corrosion dị ntakịrị ogbenye, a na-ejikwa ya maka akụrụngwa akụrụngwa dị elu na nguzogide corrosion. A na-achọ akụkụ ụfọdụ n'ozuzu ya, dị ka isi iyi, uzuoku turbine agụba, hydraulic press valves, wdg. A na-eji ụdị ígwè a eme ihe mgbe ọ kwụsịrị na tempering. A na-achọ ka annealing mgbe ịghachara na stampụ.