I-high-temperature alloy plate iyinto ekhethekile egcina ukusebenza okuhle kakhulu ezindaweni ezinezinga lokushisa eliphezulu. Isetshenziswa kabanzi ku-aerospace, amandla, amakhemikhali, neminye imikhakha. Izinzuzo zayo zibonakala ngokuyinhloko kulezi zici ezilandelayo:

1. Ukuzinza Okuhle Kakhulu Kwezinga Lokushisa

Ukugcinwa Kwamandla Ezinga Lokushisa Okuphezulu: Ngisho nasezindaweni ezinezinga lokushisa eliphezulu elingaphezu kuka-600°C, igcina amandla aqine kakhulu, amandla esivuno, namandla okukhathala, futhi ayithambisi ngokushesha ngamazinga okushisa akhuphukayo. Isibonelo, ama-superalloy asuselwe ku-nickel agcina izakhiwo ezanele zokuwumshini emazingeni okushisa acishe abe ngu-1000°C, ahlangabezana nezidingo zezingxenye ezibalulekile ezifana nama- turbine blades.

I-Creep Resistance: Lapho ingaphansi kwengcindezi yesikhathi eside emazingeni okushisa aphezulu, izinto ezibonakalayo zibonisa ukuwohloka okuncane (ukumelana ne-creep), ukuvimbela ukwehluleka ngenxa yokuwohloka kwesakhiwo okuhamba kancane. Lokhu kubalulekile ezintweni zokusebenza ezinjengama-turbines nama-boilers asebenza ezindaweni ezishisa kakhulu nezinomfutho ophezulu.

2. I-Oxidation Enhle Kakhulu kanye Nokumelana Nokugqwala

Ukumelana Nokushisa Okuphezulu Kwe-oxidation: Emoyeni wezinga lokushisa eliphezulu noma kugesi, okokusebenza kwenza ifilimu ye-oxide eminyene (efana ne-Cr₂O₃ noma i-Al₂O₃) endaweni yayo, evimbela ukuhlaselwa komoyampilo okwengeziwe, imelana ngempumelelo nokugqwala kwe-oxidative, nokwelula impilo yayo yesevisi. Isibonelo, amapuleti engxubevange aqukethe i-chromium ne-aluminium agcina ukumelana ne-oxidation okuhle kakhulu emazingeni okushisa angaphezu kuka-1000°C.

Ukumelana Nokugqwala: Ama-alloy asezingeni lokushisa eliphezulu amelana namagesi ane-asidi ne-alkaline (njenge-hydrogen sulfide ne-sulfur dioxide), izinsimbi ezincibilikisiwe, nosawoti, okuwenza afanelekele izindawo eziyinkimbinkimbi njengama-reactors amakhemikhali, izishisi zemfucumfucu, nama-nuclear reactors.

3. Ukuqhubekela phambili Okuhle Kakhulu kanye Nokuzinza Kwesakhiwo

Ukucutshungulwa: Naphezu kwamandla awo aphezulu, ama-alloys asezingeni eliphezulu angakhiwa abe yizinhlobonhlobo zezinhlobo, okuhlanganisa amapuleti namashubhu, ngokusebenzisa izinqubo ezinjengokufoja, ukugingqika, nokushisela, ukuze kuhlangatshezwane nezidingo zesakhiwo semishini ehlukene (njengamapuleti ensimbi angangeni ekushiseni amabhayela amakhulu namaphaneli egumbi elivuthayo ezinjini zezindiza).

Ukuzinza Kwe-Microstructural: Ngisho nokusetshenziswa kwesikhathi eside kwezinga lokushisa eliphezulu, ukwakheka kwe-metallographic yangaphakathi (njengesigaba se-alloy kanye nesakhiwo sokusanhlamvu) akunakwenzeka ukuba senze izinguquko ezinkulu. Lokhu kuvimbela ukuwohloka kokusebenza ngenxa yokuwohloka kwesakhiwo futhi kuqinisekisa ukusebenza okuthembekile kwesikhathi eside kwempahla.

4. Ububanzi Obubanzi Bezinga Lokushisa, Lufanele Indawo Eyedlulele

Amapuleti engxubevange amboza izinga lokushisa ukusuka emazingeni okushisa aphakathi nendawo-phezulu (600°C) kuya kumazinga okushisa aphezulu kakhulu (ngaphezu kuka-1200°C). Amapuleti e-alloy anezingoma ezihlukene afanele ukusetshenziswa okuhlukile: isibonelo, ama-alloys asekelwe ku-iron afaneleka emazingeni okushisa phakathi kuka-600-800 ° C, ama-alloys asekelwe ku-nickel afanele amazinga okushisa phakathi kuka-800-1200 ° C, nama-alloys asekelwe ku-cobalt angasetshenziswa emazingeni okushisa aphezulu isikhathi esifushane.

Bangakwazi ukumelana nemiphumela ehlanganisiwe yokushisa okuphezulu kanye nemithwalo yemishini. Isibonelo, ama-turbine disks ezinjinini zezindiza kufanele amelane kokubili izinga lokushisa eliphezulu lamagesi avuthayo namandla aphakathi nendawo akhiqizwa ukuzungezisa ngesivinini esikhulu.

5. I-Lightweighting kanye Namandla Onga Amandla

Uma kuqhathaniswa nezinsimbi zendabuko ezikwazi ukumelana nokushisa, amanye ama-alloys asezingeni eliphezulu (njenge-nickel-based kanye nama-alloys asekelwe ku-titanium-aluminium) anomthamo ophansi ekusebenzeni okufanayo kwezinga lokushisa eliphezulu, okunikela ekwenziweni kwempahla engasindi (isibonelo, ukunciphisa isisindo sesakhiwo kanye nokusetshenziswa kwamandla embonini ye-aerospace).

Ngenxa yokumelana nokushisa okuphezulu nokuqina, bangakwazi ukunciphisa imvamisa yokugcinwa kwemishini kanye nezindleko zokushintshwa, bathuthukise ngokungaqondile ukusebenza kahle kwamandla (isibonelo, ukusebenzisa amapuleti e-alloy asezingeni eliphezulu kuma-boilers wezitshalo zamandla kungakhuphula izinga lokushisa lomlilo kanye nokusebenza kahle kokukhiqizwa kwamandla).