Ọkpụkpụ igwe anaghị agba nchara nwere ọtụtụ uru, dị ka nguzogide oxidation dị elu, nguzogide corrosion siri ike, plasticity dị mma, arụmọrụ ịgbado ọkụ dị mma, wdg, a na-ejikwa ya na mpaghara ụlọ ọrụ obodo dị iche iche. Otú ọ dị, n'ihi na ala ekweghị ekwe na ala na-eyi nguzogide igwe anaghị agba nchara, ngwa ya n'ọtụtụ oge ga-ejedebe, karịsịa na gburugburu ebe ọtụtụ ihe dị ka corrosion, eyi, na ibu dị arọ dị ma na-emetụta ibe ha, ndụ ọrụ nke Ihe igwe anaghị agba nchara ga-adị mkpụmkpụ nke ukwuu. Yabụ, otu esi abawanye ike nke elu igwe anaghị agba nchara nchara?

Ugbu a enwere usoro iji bulie ike elu nke ọkpọkọ nwere mgbidi site na ion nitriding iji meziwanye nguzogide eyi ma si otú ahụ gbasaa ndụ ọrụ ya. Otú ọ dị, austenitic igwe anaghị agba nchara enweghị ike iwusi ike site na mgbanwe oge, na ion nitriding omenala nwere nnukwu nitriding okpomọkụ, nke dị elu karịa 500 ° C. Chromium nitrides ga-ebuli elu na nitriding oyi akwa, na-eme ka igwe anaghị agba nchara matrix chromium-ogbenye. Ọ bụ ezie na ike elu elu na-abawanye nke ukwuu, nguzogide corrosion nke ọkpọkọ ga-ebelata nke ukwuu, si otú a tụfuo njirimara nke ọkpọkọ igwe anaghị agba nchara.

Ojiji nke DC pulse ion nitriding akụrụngwa na-emeso austenitic ígwè ọkpọkọ na obere okpomọkụ ion nitriding nwere ike ime ka elu ike ike nke oké-walled ígwè ọkpọkọ na-edebe corrosion iguzogide agbanweghị, si otú na-amụba ha eyi iguzogide. E jiri ya tụnyere ihe nlele ion nitriding a na-emeso n'oge okpomọkụ nitriding, ntụnyere data bụkwa ihe doro anya.

Emere nnwale ahụ n'ime ọkụ 30kW DC pulse ion nitriding. The parameters nke DC usu ike ọkọnọ bụ mgbanwe voltaji 0-1000V, mgbanwe ọrụ okirikiri 15% -85%, na ugboro 1kHz. A na-atụ usoro nha okpomọkụ site na temometa infrared IT-8. Ihe nlere a bụ austenitic 316 igwe anaghị agba nchara, yana kemịkalụ ya bụ 0.06 carbon, 19.23 chromium, 11.26 nickel, 2.67 molybdenum, 1.86 manganese, na ndị ọzọ bụ ígwè. The sample size bụ Φ24mm × 10mm. Tupu nnwale ahụ, a na-eji akwụkwọ mmiri na-ehicha ihe atụ ndị ahụ n'aka iji wepụ ntụpọ mmanụ, wee kpochaa ma kpoo ya na mmanya na-aba n'anya, wee tinye ya n'etiti diski cathode ma kpochaa ya n'okpuru 50Pa.

Microhardness nke oyi akwa nitrided nwere ike iru n'elu 1150HV mgbe a na-eme ion nitriding na austenitic 316 igwe anaghị agba nchara welded ọkpọkọ na obere okpomọkụ na oge nitriding okpomọkụ. oyi akwa nitrided enwetara site na ion nitriding na-ekpo ọkụ dị ntakịrị ma nwee gradient siri ike dị elu. Mgbe obere okpomọkụ ion nitriding, nguzogide iyi nke austenitic ígwè nwere ike ịbawanye ugboro 4-5, na nguzogide corrosion na-anọgide na-agbanwe agbanwe. Ọ bụ ezie na enwere ike ịkwalite nguzogide iyi ahụ site na ugboro 4-5 site na ion nitriding na okpomọkụ nitriding a na-ahụkarị, nguzogide corrosion nke austenitic igwe anaghị agba nchara nwere mgbidi ga-ebelata ruo n'ókè ụfọdụ n'ihi na chromium nitrides ga-ebuli elu n'elu.