Tụnyere ígwè nkịtị.ígwè pụrụ ichenwere ike dị elu na ike siri ike, akụrụngwa anụ ahụ, akụrụngwa kemịkalụ, biocompatibility na arụmọrụ usoro. Maígwè pụrụ ichenwere ụfọdụ dị iche iche e ji mara si nkịtị ígwè. N'ihi na ígwè ígwè ọtụtụ ndị ọzọ nghọta, ma n'ihi na àgwà nkeígwè pụrụ iche, ọtụtụ ndị kwuru ihe mgbagwoju anya. Ya mere, isiokwu na-esonụ na-elekwasị anya na àgwà nkeígwè pụrụ iche.
Atụmatụ nke ígwè pụrụ iche:
Tụnyere ígwè nkịtị.ígwè pụrụ ichenwere njirimara nke ịdị ọcha dị elu, ịdị n'otu dị elu, usoro dị oke mma na nkenke dị elu:
(1)Ịdị ọcha dị elu.Enwere ike ibelata ọdịnaya nke gas na ntinye (gụnyere ntinye ígwè nwere ebe mgbaze dị ala) na ígwè. Mgbe ịdị ọcha nke ígwè na-abawanye ruo n'ókè ụfọdụ, ọ bụghị nanị na ihe mbụ nke ígwè nwere ike ime ka ọ dịkwuo mma, ma enwere ike inye ihe ọhụrụ nke ígwè. Dịka ọmụmaatụ, ikuku oxygen dị na ígwè na-ebu ígwè na-ebelata site na 30 × 10-6 ruo 5 × 10-6, ndụ ndụ na-abawanye site na 30 ugboro. Igwe anaghị agba nchara austenitic zuru ụwa ọnụ anaghị egbochi nrụgide nrụgide mgbe a na-ebelata ọdịnaya phosphorus ka ọ bụrụ 3 × 10-6. Na njedebe nke narị afọ nke 20, ọkwa ịdị ọcha (10) nke ígwè nwere ike nweta site na mmepụta oke bụ: hydrogen ≤1, oxygen ≤5, carbon ≤10, sọlfọ ≤10, nitrogen ≤15, phosphorus ≤25.

(2) Ịdị n'otu dị elu.Ihe mejupụtara nkewa nke ígwè na-eduga n'ụdị na-enweghị isi na ihe onwunwe nke ígwè, nke bụ otu n'ime ihe ndị dị mkpa maka ọdịda mbụ nke akụkụ ígwè na ihe isi ike na-eji nchara nchara nchara. Teknụzụ mmepụta ọgbara ọhụrụ kwesịrị ime ka ịdị n'otu nke igwe ruru: ụgbọ ala gia steel hardenability band fluctuation bụ ± 3HRC; A na-achịkwa ọdịnaya nke carbon, nickel, molybdenum ≤± 0.01%, na manganese na chromium ≤± 0.02% nke ọma. Ogo ọka nke nchara nchara mgbe emechara ya bụ okirikiri yana mgbanwe nha ya bụ 0.8± 0.2 μm. The n'ibu Njirimara nke laminated akwa na-eguzogide ígwè (Z-direction ígwè) na longitudinal, transverse na ọkpụrụkpụ direction, karịsịa plastic na siri ike chọrọ bụ n'ozuzu yiri.
(3) Ultra-mma Ọdịdị.Ultra-mma microstructure na-ewusi ike bụ naanị usoro na-ewusi ike nke nwere ike ịbawanye ike nke ígwè na-ebelata ma ọ bụ na-abawanye ike. Dịka ọmụmaatụ, mgbe a na-anụcha nha ọka nke nnukwu ike igwe anaghị agba nchara AFC77 site na 60μm ruo 2.3 μm, ike mgbaji ahụ Kic na-abawanye site na 100 ruo 220MPa·m. The irradiated embrittlement okpomọkụ nke keadighi rarii-grained ígwè efere na nuclear reactor mgbali arịa bụ 150 ~ 250 ℃ mgbe nke ọma-grained ígwè bụ 50 ~ 70 ℃. Mgbe nha carbide na nchara nchara dị mma na ≤0.5μm, ndụ ndụ ga-akawanye mma.
(4) Elu nkenke. Nchara pụrụ ichekwesịrị inwe ezigbo elu mma na warara akụkụ tolerances. Izi ezi nke mkpanaka igwe na-ekpo ọkụ na-ekpo ọkụ ruo ± 0.1mm, nkwụsị nke ntanye nke mkpuchi mpempe akwụkwọ na-ekpo ọkụ ruo ± 0.015 ~ 0.05mm, na nkwụsịtụ nke mkpuchi mkpuchi oyi akwa ruo ± 0.003mm.