Impembelelo yezinto ezingcolileyo kwi-Aluminium Alloy

I-Vanadium ifom ye-VAL11 i-refractory compound kwi-aluminium alloy, edlala indima ekucoceni iinkozo kwinkqubo yokunyibilika kunye nokuphosa, kodwa umphumo uncinci kune-titanium kunye ne-zirconium. I-Vanadium nayo inomphumo wokucoca ukwakhiwa kwe-recrystallization kunye nokwandisa ubushushu bokubuyisela kwakhona.

Ukunyibilika okuqinileyo kwe-calcium kwi-alloy ye-aluminiyam iphantsi kakhulu, kwaye yenza i-CaAl4 ikhompawundi ene-aluminiyam. Icalcium ikwayinto engaphezulu kweplasitiki yealluminiyam. I-alloy ye-aluminiyam malunga ne-5% ye-calcium kunye ne-5% ye-manganese ine-superplasticity. I-calcium kunye ne-silicon yenza i-CaSi, enganyibilikiyo kwi-aluminiyam. Ekubeni isixa sesisombululo esiqinileyo se-silicon sincitshisiwe, ukuqhutyelwa kwe-aluminium ecocekileyo ye-industrial kunokuphuculwa kancinci. I-calcium inokuphucula ukusebenza kwe-aluminium alloy. I-CaSi2 ayinakomeleza unyango lobushushu lwe-alloy ye-aluminium. Ukulandelela i-calcium kunenzuzo ekususeni i-hydrogen kwi-aluminiyam etyhidiweyo.

Ilothe, i-tin, kunye ne-bismuth element ziziintsimbi ezinyibilika kancinci. Bane-solubility encinci ye-aluminium, enciphisa kancinci amandla e-alloy, kodwa inokuphucula ukusebenza kokusika. I-Bismuth iyakhula ngexesha lokuqiniswa, okuluncedo ekutyeni. Ukongeza i-bismuth kwii-alloys eziphezulu ze-magnesium kunokuthintela "i-sodium brittleness".

I-Antimony isetyenziswa kakhulu njenge-modifier kwi-alloys ye-aluminium etyhidiweyo, kwaye ayifane isetyenziswe kwi-alloys edibeneyo ye-aluminium. Kuphela indawo ye-bismuth kwi-Al-Mg eyenziwe i-alloys ye-aluminiyam ukukhusela i-sodium embrittlement. Xa i-antimony element yongezwa kwezinye ii-alloys ze-Al-Zn-Mg-Cu, ukusebenza koxinzelelo olushushu kunye noxinzelelo olubandayo kunokuphuculwa.

I-Berryllium inokuphucula ukwakheka kwefilimu ye-oxide kwi-alloy edibeneyo ye-aluminium kunye nokunciphisa ilahleko evuthayo kunye nokufakwa ngexesha lokuphosa. I-Beryllium yityhefu enokuthi ibangele ityhefu ye-allergic. Ngoko ke, ii-alloys ze-aluminium ezidibana nokutya kunye neziselo azikwazi ukuba ne-beryllium. Umxholo we-beryllium kwizinto ze-welding zihlala zilawulwa ngaphantsi kwe-8μg / ml. I-alloy ye-aluminium esetyenziswe njengesiseko se-welding kufuneka iphinde ilawule umxholo we-beryllium.

I-sodium iphantse ingabikho kwi-aluminium, i-solubility ephezulu eqinile ingaphantsi kwe-0.0025%, kwaye i-melting point ye-sodium iphantsi (97.8 ° C). Xa i-sodium ikhona kwi-alloy, i-adsorbed phezu kwe-dendrites okanye imida yeenkozo ngexesha lokuqina. Ngexesha lokucutshungulwa kwe-thermal, i-sodium kumda weenkozo yenza i-adsorption layer ye-liquid adsorption, kwaye xa i-brittle cracking isenzeka, i-NaAlSi compound yenziwa, akukho sodium yamahhala ekhoyo, kwaye "i-sodium brittleness" ayinakwenzeka. Xa umxholo we-magnesium udlula i-2%, i-magnesium iya kuthatha i-silicon kunye ne-precipitate ye-sodium yamahhala, okubangelwa "i-sodium embrittlement". Ngoko ke, i-alloys ye-aluminium ephezulu ye-magnesium ayivumelekanga ukusebenzisa i-sodium salt fluxes. Indlela yokuthintela "i-sodium embrittlement" yindlela ye-chlorination, eyenza ifom ye-sodium i-NaCl kwaye iyikhuphe kwi-slag, kwaye yongeza i-bismuth ukwenza i-Na2Bi kwaye ifake i-matrix yensimbi; ukongeza i-antimony ukwenza i-Na3Sb okanye ukongeza umhlaba onqabileyo nawo unokudlala indima efanayo.

Ihlelwe nguMay Jiang esuka kwiMAT Aluminium