Nhanganyaya
Kuda kuziva simbi dzakasimba kwave kuri kukonzera kufambira mberi kwehunyanzvi mumaindasitiri akasiyana. Kubva pauinjiniya hwemuchadenga kusvika pakuvaka, kusimba kwesimbi kunotarisisa kukodzera kwayo kwekushandisa kwakakosha. Mukuongorora kwakadzama uku, tinoongorora simbi shanu dzepamusoro dzakasimba dzinozivikanwa nesainzi, tichiongorora zvimiro zvadzo, mashandisirwo, nemisimboti yesainzi inopa simba rawo rinoshamisa.
Kunzwisisa zvinhu zvinopa kusimba kwesimbi kwakakosha kune zvinhu zvesainzi uye mainjiniya. Zvinhu izvi zvinosanganisira chimiro cheatomu, kubatana, uye kuvapo kwearoyi. Simbi dzakaita sesimbi dzanga dziri pamberi nekuda kwekusiyana-siyana kwadzo. Zvikuru sei, simbi dzakasimba dzakasiyana dzakashandura huinjiniya hwazvino nekupa chiyero pakati pesimba, ductility, uye mutengo-kushanda.
1. Tungsten
Tungsten inozivikanwa nekuve nesimba repamusoro-soro resimbi yechisikigo, inova chiyero chesimba rinodiwa kudhonza chimwe chinhu kusvika painotyoka. Iine simba rekusimba rinosvika 1,510 megapascals (MPa), tungsten inogara kwenguva refu. Iyo yakakwirira yekunyungudika uye density inoita kuti ive yakanakira kunyorera mumaindasitiri emagetsi, echiuto, uye aerospace.
Iyo simbi inosarudzika maitiro imhaka yeatomu chimiro uye yakasimba esimbi zvisungo pakati maatomu ayo. Kugona kweTungsten kutsungirira tembiricha yakanyanyisa pasina deformation yakakosha inoita kuti ive yakakosha kune zvikamu zvakaita seroketi injini nozzles uye high-speed projectiles.
2. Simbi
Simbi ialloy inoumbwa zvakanyanya nesimbi uye kabhoni. Kuwedzerwa kwekabhoni nezvimwe zvinhu zvakaita sechromium, nickel, uye manganese zvinowedzera simba rayo uye kusimba. Zvichienderana nekuumbwa kwayo uye kurapwa, simbi inogona kuratidza huwandu hwakawanda hwesimba uye dubilities. Semuyenzaniso, simbi dzakasimba dzakasiyana senge high-carbon steel inoshandiswa mukucheka maturusi uye zvitubu nekuda kwekuoma kwavo.
Izvo zvakasiyana-siyana zvesimbi zvinoita kuti ive ibwe rekona mukuvaka nekugadzira. Zvitsva mukugadzirwa kwesimbi, senge thermo-mechanical processing uye micro-alloying, zvakatungamirira kune yakakwirira-simba, yakaderera-alloy (HSLA) simbi inopa yakagadziridzwa michina zvinhu pasina huremu hunokosha hunowedzera.
3. Chromium
Chromium inozivikanwa nekuoma kwayo kwepamusoro uye kuramba kukoromoka. Nekuoma kweMohs kwe8.5, chromium imwe yesimbi dzakaomesesa. Inowanzo shandiswa kuisa mamwe simbi kudzivirira uye kunatsiridza chitarisiko chavo. Simba reChromium rinoshandiswa mukugadzirwa kwesimbi isina tsvina, uko inowedzera kuramba kwealloy kune oxidation uye kusvibisa.
Kuwedzerwa kwechromium kusimbi, kazhinji kanenge 10.5% nehukuru, inoumba mutete oxide layer pamusoro pesimbi, kudzivirira imwezve ngura-chinhu chinonzi passivation. Izvi zvinoita kuti simbi dzisina tsvina dzive dzakakosha munzvimbo dzinodiwa kusimba uye kusagadzikana kwekuora, senge mumichina yekugadzira makemikari nemichina yekurapa.
4. Titanium
Titanium inokosheswa nehukuru hwayo hwekusimba-ku-huremu reshiyo uye yakanakisa corrosion resistance. Kunyange zvazvo isina kusimba se tungsten, titanium alloys inogona kuwana simba rekusimba pakati pe830 MPa ne2,070 MPa, zvichienderana nealloy uye maitiro ekugadzirisa. Titanium yakaderera density inoita kuti ive yakanaka kune aerospace application uko kuchengetedza huremu kwakakosha.
Zvishandiso zvekurapa zvinobatsirawo kubva kune titanium's biocompatibility. Kupokana kwayo kumvura yemuviri kunoita kuti ive yakakodzera kuisirwa kuvhiyiwa uye prosthetics. Indasitiri yezvemuchadenga inoshandisa titanium muinjini dzejeti, maairframes, uye spacecraft nekuda kwekugona kwayo kutsungirira kushushikana kwakanyanya uye tembiricha.
5. Inconel
Inconel imhuri ye nickel-chromium-based superalloys. Inozivikanwa nekugona kwavo kuchengetedza simba uye kuramba corrosion pakupisa kwakanyanya, Inconel alloys yakakosha munzvimbo dzeinjiniya dzepamusoro. Nekusimba kwekusimba kunodarika chiuru cheMPa, anoshandiswa mukushandisa senge turbine blades, rocket engines, uye nuclear reactors.
Kuita kwakasarudzika kweInconel alloys kunobva mukugona kwavo kuumba gobvu, yakagadzikana passivating oxide layer pakupisa kwakanyanya. Iyi dura inodzivirira zvinhu kubva pakurwiswa zvakare, zvichiita kuti Inconel ikwane kune zvakanyanya kudiwa nharaunda uko zvese kupisa kupisa uye simba remagetsi rinodiwa.
Kuenzanisa Kuongorora kweMasimbi
Kana uchienzanisa simbi idzi, zvakakosha kuti usatarise kwete simba radzo chete asiwo mamwe ma mechanic properties senge kuomarara, ductility, uye kukanganisa kuramba. Tungsten, nepo iine yakanyanya kusimba simba, zvakare ine brittle, iyo inomisa kushandiswa kwayo mumashandisirwo uko kuchinjika kunodiwa. Simbi, kunyanya simbi yakasimba alloys, inopa kuenzana kwesimba uye ductility, zvichiita kuti zvishande zvakanyanya.
Chromium inokwidziridza zvimiro zvedzimwe simbi kuburikidza nealloying, zvichikonzera kuomarara uye kushora kuramba. Simba reTitanium rakareruka harina kuenzaniswa, asi mutengo wayo wepamusoro unogona kuve unomisa chinhu. Kushandiswa kweInconel kwakasarudzika munzvimbo dzakanyanyisa kunoruramisa mari yayo mumashandisirwo uko kukundikana isiri sarudzo.
Zvishandiso muMamanje Industries
Aerospace uye Defense
Indasitiri yezvemuchadenga inoda zvinhu zvinokwanisa kumira kushushikana kwakanyanya uye tembiricha. Titanium neInconel zvinoshandiswa zvakanyanya mumafuremu endege, injini, uye zvinokandwa. Mutengo wepamusoro wezvinhu izvi unogadziriswa nekuita kwavo uye hupenyu hurefu mubasa.
Kufambira mberi mune metallurgy kwakatungamirira kukugadzirwa kwe-ultra-high-simba simbi, semaraging simbi, iyo inoshandiswa mu rocket casings nezvimwe zvikamu zvemhepo. Aya masimbi anopa simba repamusoro uye kuomarara mushure mekuita kurapwa kwekupisa.
Kuvaka uye Infrastructure
Simbi inoramba iri musimboti wekuvaka kwemazuva ano. Kushandiswa kwaro muzvirongwa zvekuvaka, mabhiriji, uye zvirongwa zvezvivakwa hazvienzaniswi. Iko kugadzirwa kwepamusoro-simba, yakaderera-alloy simbi yakavandudza kushanda kwezvivakwa uku ichideredza kushandiswa kwezvinhu uye mari.
Masimbi asingadziviriri, akadai semasimbi ekunze, ane zvinhu zvakaita sechromium nemhangura. Aya masimbi anoumba chidziviriro cherust layer chinoderedza mazinga ekuora, kuwedzera hupenyu hwezvivakwa uye kuderedza mari yekugadzirisa.
Automotive Industry
Kusundidzira kwemafuta ekufambisa kwaita kuti indasitiri yemotokari iongorore zvinhu zvakareruka uye zvakasimba. High-simba simbi uye titanium zvikamu zvinoderedza uremu hwemotokari pasina kukanganisa kuchengetedza. Steel alloys anoshandiswa zvakanyanya mumafuremu emotokari, zvikamu zveinjini, uye maficha ekuchengetedza senge roll cages.
Masimbi epamusoro-soro (AHSS) anobvumira vagadziri kushandisa zvinhu zvakatetepa vachichengetedza kuparara. Izvi zvinoguma nemotokari dzakareruka dzine hupfumi hwemafuta huri nani uye kuderedzwa kwehutsi.
Kufambira mberi muMetallurgy
Tsvagiridzo inoenderera mberi mumetallurgy inoenderera mberi nekusundira miganhu yekusimba kwesimbi. Tekinoroji dzakaita senanostructuring uye alloying nezvinhu zvisingawanzo pasi zvakatungamira mukugadzirwa kwesimbi dzine zvinhu zvisati zvamboitika. Semuenzaniso, vatsvakurudzi vari kuongorora magirazi esimbi, ayo anobatanidza kusimba kwesimbi pamwe nekushanduka kwegirazi nekuda kwechimiro cheatomu yeamorphous.
Imwe nzvimbo yekufambira mberi ndeye kushandiswa kwezvinhu zvakaumbwa, uko simbi dzinosanganiswa neceramics kana mapolymers kugadzira zvinhu zvinoratidzira simba repamusoro-ku-huremu reshiyo uye kusagadzikana kwekuora. Zvishandiso izvi zvine mukana wekushandisa mune aerospace, kudzivirira, uye maindasitiri ekurapa.
Matambudziko uye Mafungiro
Kunyange kusimba kwesimbi kuri chinhu chakakosha, mainjiniya anofanirwawo kufunga nezvezvimwe zvivakwa zvakaita semachinability, weldability, uye mutengo. Semuyenzaniso, brittleness ye tungsten uye kuomerwa kwemuchina kunomisa kushandiswa kwayo kwakapararira kunyangwe kusimba kwayo kwakanyanya. Saizvozvo, mutengo wetitanium neInconel unogona kurambidza mashandisirwo makuru.
Zvinhu zvemhoteredzo zvinoitawo basa. Kudhirowa uye kugadziridzwa kwesimbi idzi kunogona kuve nekukanganisa kwakanyanya kwezvakatipoteredza. Indasitiri iri kuenda kune mamwe maitiro akasimba, anosanganisira kudzokorodza uye kuvandudza kwegirinhi metallurgy maitiro.
Ramangwana Outlook
Ramangwana resimbi dzakasimba riri mukuenderera mberi nekutsvaga nekusimudzira. Kubudirira mune nanotechnology nesainzi yezvinhu zvinovimbisa simbi nyowani uye alloys ane akagadzirirwa zvivakwa kune chaiwo maapplication. Iko kubatanidzwa kwe computational modelling uye artificial intelligence kuri kukurumidza kuwanikwa kwezvinhu zvitsva.
Zvishandiso senge graphene uye zvimwe-maviri-dimensional zvinhu zviri kuongororwa nekuda kwesimba razvo rakasiyana uye zvinhu zvemagetsi. Kunyange zvisiri simbi, zvinogona kusanganiswa nesimbi kugadzira macomposites ane mashandiro akawedzerwa.
Mhedziso
Kuona simbi shanu dzepamusoro dzakasimba kunosimbisa kufambira mberi kunoshamisa mune zvesainzi uye engineering. Simbi dzakaita se tungsten, simbi, chromium, titanium, uye Inconel imwe neimwe inopa zvakasiyana kune tekinoroji yemazuva ano. Basa re simbi yakasimba haigoni kupfuudzwa, sezvo ichipa kuenzana kwesimba, kukwanisa, uye zvakasiyana-siyana.
Sezvo maindasitiri achishanduka uye matambudziko matsva achimuka, kudiwa kwezvinhu zvakasimba, zvakareruka, uye zvinogara zvakasimba zvicharamba zvichikura. Kushanda pamwe chete kwemasainzi nemainjiniya pasi rese kuri kugadzira nzira yechizvarwa chinotevera chesimbi dzepamusoro izvo zvinogadzira ramangwana rehunyanzvi uye zvivakwa.
