Nei Nickel Yakavakirwa Alloys?

Nickel-based Alloys

Nickel-based alloys inonziwo ni-based superalloys nekuda kwesimba ravo rakatanhamara, kupisa kupisa uye ngura kuramba. Chimiro chakatarisana nekristaro chimiro chakasarudzika chei-based alloys sezvo nickel inoshanda seyakagadzika yeaustenite.

Kazhinji mamwe makemikari anowanikwa kune nickel-based alloys ndeye chromium, cobalt, molybdenum, iron uye tungsten.

Inconel® uye Hastelloy® Nickel-based Alloys

Iwo maviri emhando yakasimbiswa nickel-based alloys mhuri ndeye Inconel® uye Hastelloy®. Zvimwe zvinogadzirwa vagadziri ndeye Waspaloy®, Allvac® uye General Electric®.

Inowanzozivikanwa Inconel® nickel-based alloys ndeaya:

• Inconel® 600, 2.4816 (72% Ni, 14-17% Cr, 6-10% Fe, 1% Mn, 0.5% Cu): Iyo nickel-chrome-iron alloy iyo inoratidza kugadzikana kwakanakisa pane yakafara tembiricha chiyero. Yakagadzikana inopesana neklorini uye chlorine mvura.
• Inconel® 617, 2.4663 (Nickel balance, 20-23% Cr, 2% Fe, 10-13% Co, 8-10% Mo, 1.5% Al, 0.7% Mn, 0.7% Si): Ichi chiwanikwa chakagadzirwa zvakanyanya nickel , chrome, cobalt uye molybdenum inoratidza yakasimba simba uye kupisa kupisa.
• Inconel® 718 2.4668 (50-55% Ni, 17-21% Cr, Iron balance, 4.75-5.5% Nb, 2.8-3.3% Mo, 1% Co,): Yakaomesesa nickel-chrome-iron-molybdenum alloy iyo inozivikanwa nekushanda kwayo kwakanaka uye inoyevedza michina zvivakwa pakadzika tembiricha.

Hastelloy® nickel-based alloys inozivikanwa nekurwisa kwavo acid. Iwo akajairika ndeaya:

Hastelloy® C-4, 2.4610 (Nickel balance, 14.5 - 17.5% Cr, 0 - 2% Co, 14 - 17% Mo, 0 - 3% Fe, 0 - 1% Mn): C-4 nickel- chrome-molybdenum alloy iyo inoshandiswa munzvimbo dzine inorganic acids.
• Hastelloy® C-22, 2.4602 (Nickel balance, 20 -22.5% Cr, 0 - 2.5% Co, 12.5 - 14.5% Mo, 0 - 3% Fe, 0-0.5% Mn, 2.5 -3.5 W): C- 22 ingura-inoshingirira nickel-chrome-molybdenum-tungsten alloy iyo inoratidza kushingirira kwakanaka kurwisa acids.
• Hastelloy® C-2000, 2.4675 (Nickel balance, 23% Cr, 2% Co, 16% Mo, 3% Fe): C-2000 inoshandiswa munzvimbo dzine makemikari ane hukasha, senge sulfuric acid uye ferric chloride.

♦ Kuvandudza kugadzikana kwema nickel-based basa zvidimbu

Nickel-based alloys inozivikanwa neakanakisa yavo mega michina senge kudzora ngura uye kudzikama kwepamusoro tembiricha. Nekudaro, hapana kana chidimbu chebasa chingagare nekusingaperi, kunyangwe hazvo chinhu chakanakisa. Kuti uwedzere hupenyu hwezvikamu, nickel based alloys inogona kurapwa neBoroCoat®, yedu yekuparadzira kurapa yekunyatso kugadzirisa ngura uye kupfeka kuramba pamwe nekupa kugadzikana kunopesana nemaokisijeni.

Matanho ekupatsanurwa kweBoroCoat® anovandudza kuomarara kwepasi kusvika pa2600 HV apo uchichengetedza denderedzwa re60 µm. Iko kupfeka kwekushomeka kunovandudzwa zvakanyanya, sekuratidzwa nepini pane disc bvunzo. Nepo iko kupfeka kwakadzika kweasina kurapwa nickel-based alloys kunowedzera iyo yakareba iyo pini inotenderera, ni-based alloys neBoroCoat® inoratidza inoenderana yakaderera kupfeka kudzika mukati meyese bvunzo.

♦ Nzvimbo dzeKushandisa

Maalloys ane nickel hwaro anowanzo shandiswa munzvimbo dzakaomarara dzinoda kuramba kwakanaka pamusoro pekupisa uye kwakadzika tembiricha, oxidation / ngura uye simba rakakwira. Ichi chikonzero nei kunyorera kuchisanganisira asi kusingagumiri kune: turbine engineering, magetsi ekudyara tekinoroji, indasitiri yemakemikari, eerospace engineering uye mavhavha / zvigadzirwa.

 Inenge 60% yenikel iri munyika inoguma yave chinhu chesimbi isina chinhu. Iyo inosarudzwa nekuda kwesimba rayo, kuomarara, uye kuramba kurora. Duplex simbi isina simbi inowanzo kuve neinenge 5% nickel, austenitics akakomberedza 10% nickel, uye super austenitics anopfuura makumi maviri muzana. Kupisa kusinga mamaki kazhinji kune anopfuura 35% nickel. Nickel-based alloys kazhinji ine 50% nickel kana zvimwe.