Ngā Tikanga Hou mō te Tātari i te Rahunga o te Konganuku
Mai anō i ngā wā onamata, he mea nui te mahi a ngā konganuku ki te whanaketanga o te hangarau tangata. Mai i ngā taputapu māmā ki ngā hanganga hanganga uaua, ko ngā konganuku te rauemi matua e whiriwhiria ana nā te mea he kaha, he pakari hoki. Heoi, ahakoa ō rātou painga, kāore ngā konganuku e ātete ki te pakaru. Ko te mārama ki ngā take o te pakaru o te konganuku he mea nui ki te whakapai ake i te mahi me te roa o te ora o ēnei rauemi. I roto i tēnei tuhinga, ka matapakihia e mātou ngā tikanga hou mō te tātari pakaru o te konganuku.
He Kupu Whakataki ki te Rahunga o te Metara
Ko te pakaru o te konganuku he āhuatanga e kore ai e taea e te konganuku te mahi i tana mahi e tika ana nā te kino o te hanganga, o te rauemi rānei. Ka taea te puta o tēnei pakaru i ngā āhuatanga maha pērā i te ngenge, te waikura, te whati, te kino rānei o te miihini. He tukanga pūnaha te tātari pakaru hei whakatau i te pūtake o aua pakaru, me te whakarato taunakitanga hei ārai i te hokinga mai.
Hangarau Makarohiko
1. Tirotiro Tirohanga
Ko te tirotiro ā-kanohi te taahiraa tuatahi me te taahiraa māmā rawa atu i roto i te tātari rahunga. Ahakoa te āhua taketake, he maha ngā wā ka whakaratohia e tēnei taahiraa he tohu nui mō te momo rahunga kua puta. Ko ngā tohu whānui pēnei i ngā kapiti, ngā pakaru, me te tae kerekere ka taea te whakarato i ngā tohu wawe o te tikanga rahunga.
Hei tauira, ka taea e ngā kapiti radial te tohu i te ngenge, engari ka taea te tautuhi i te waikura mā te huri i te tae me te kakano i runga i te mata whakarewa. Ahakoa ehara i te mea uaua pērā i ētahi atu hangarau, he whai hua te tirotiro ā-kanohi ki te whakarato i ngā tohu tīmatanga kaha.
Hangarau Makaroiti
2. Te Matawai Irahiko Matawai (SEM)
Mā te SEM ka taea te tātari taipitopito i ngā āhuatanga o te mata i te taumata moroiti. Mā te whakamahi i ngā irahiko hei pūtake mārama, ka taea e te SEM te whakanui i ngā mea rau mano ngā wā, ā, ka puta he whakaahua tino teitei.
I roto i te tātari rahunga, he tino whai hua te SEM mō te tautuhi i ngā āhuatanga moroiti pēnei i ngā whakaurunga, ngā kapiti moroiti, me ngā tikanga whakarerekētanga moroiti. He maha hoki te whakamahinga o te SEM mō te tātari huānga matū mā te whakamahi i ngā taputapu tāpiri pēnei i te Energy-Dispersive X-ray Spectroscopy (EDS). Mā te EDS ka taea te tautuhi i te hanganga matū o ngā wāhi motuhake o te tauira, he mea nui tēnei mō te whakatau i te aroaro o ngā poke, o ngā rauemi ke rānei e raru ai te rahunga.
3. Te Karuārai Irahiko Tuku (TEM)
He rerekē tēnei i te SEM, e tirotiro ana i ngā mata, ka taea e te TEM te kite i te hanganga o roto o ngā konganuku tae noa ki te tauine ngota. He rite ngā mātāpono o te TEM ki te SEM, engari he rerekē te huarahi e tukuna ai ngā irahiko mā roto i tētahi tauira angiangi rawa.
He tino whai hua te TEM mō te tātari i ngā nekehanga, ngā putunga tuarua-wāhanga, me ngā hanganga tioata kāore pea e kitea me te SEM. Mā tēnei tātaritanga TEM ka whakaratohia he mōhiotanga nui hei āwhina i te mārama ki ngā tikanga hanganga moroiti o te pakaru o te konganuku.
Ngā Tikanga Kore-Whakangaro
4. Whakamātautau Ultrasonic (UT)
Ko te whakamātautau ultrasonic he tikanga kore-whakangaro e whakamahi ana i ngā ngaru ultrasonic hei kite i ngā hapa o roto o te konganuku. Ka tukuna ngā ngaru ultrasonic ki roto i te konganuku, ā, ka tātarihia ngā whakaata o ngā ngaru mai i ngā hapa pēnei i te kapiti, te porosity, me ētahi atu whakaurunga rānei.
He painga tō UT ki te kite i ngā hapa o roto, me te kore e pakaru te hanganga whakarewa e whakamatautauria ana. Nā tēnei he tikanga tino whai hua mō te tirotiro auau i roto i te ahumahi, inā koa i roto i ngā wāhanga e whakahaerehia ana i raro i ngā taiao kawenga hihiri teitei.
5. Te Whakarerekētanga Hiko-X (XRD)
He tikanga kore-whakangaro te XRD e tātari ana i te hanganga tioata o ngā rauemi whakarewa. Mā te tuku i ngā hihi-X me te tātari i ngā tauira whakarara e puta mai ana, ka whakaratohia e te XRD ngā mōhiohio nui mō te āhua o te rauemi, ngā ahotea toenga, me te rahi o te kōhao.
I roto i te horopaki o te tātari rahunga, he tino whai hua te XRD mō te tautuhi i te aroaro o ngā wāhanga hou kāore e hiahiatia ana e puta mai ana i te tukatuka wera, i ngā taiao waikura rānei. Hei tāpiri, ka taea e ngā ahotea toenga i tautuhia e te XRD te whakarato i ngā tohu nui hei mārama he aha i puta ai ngā pakaru, ngā rahunga ngenge rānei i roto i tētahi wāhanga.
Tikanga Whakakotahi
6. Te Whakakotahitanga o ngā Wāhanga
Ko te Fractography te ako i ngā mata pakaru hei mārama ki ngā āhuatanga pakaru. Mā te whakamahi i te huinga o te tirotiro tirohanga, te SEM, me te TEM pea, ka tātarihia e te fractography ngā āhuatanga pakaru pēnei i ngā whiri, ngā rua, me ngā kapiti intergranular hei tautuhi i ngā tikanga pakaru.
Mā tēnei tikanga ka taea te tātari taipitopito i te āhua me te take i puta ai te rahunga. Ka taea e te tauira whati te tautuhi mēnā i puta te whati i te ngenge, te wiri, te taumaha rawa rānei, ā, mēnā he pānga o te waikura.
Tātari Matū
7. Te Matawai
Kei roto i te tirotiro matū ngā tikanga maha, pērā i te tirotiro tukunga whatu (OES) me te tirotiro mimiti ngota (AAS), e whakamahia ana hei tātari i te hanganga matū o ngā konganuku. He mea nui te hanganga matū tika hei tautuhi i te poke, i ngā huringa hanganga rānei ka pā ki te kounga o te rauemi.
Hei tauira, ahakoa he iti noa te pikinga o te nui o te whanariki i roto i te maitai, ka taea te whakaputa i ngā kapiti e kore e kitea i roto i te hanganga matua engari ka arahi pea ki te rahunga i raro i ētahi āhuatanga whakahaere. Ka whakaratohia e te Spectroscopy ēnei mōhiohio i te tere me te tika.
Ngā Tikanga Whakatauira me te Whakaari
8. Tātari Huānga Mutunga Kore (FEA)
Haunga ngā tikanga whakamātautau, he tino whai hua anō hoki te tātaritanga tau pēnei i te Tātaritanga Huānga Mutunga Kore (FEA) i roto i te tātaritanga rahunga whakarewa. Ka taea e te FEA te whakatauira mamati o ngā āhuatanga whakahaere tino kino i runga i te tauira toru-ahu o te hanganga whakarewa.
Mā te FEA, ka taea e tātou te matapae i te tohatoha ahotea, ngā wāhi e kukū ana te ahotea, tae atu ki ngā momo rahunga pea i mua i te hanganga o te wāhanga, i te whakamātautau rānei i te mara. Mā tēnei ka āwhina i te tautuhi i ngā hoahoa pai ake me ngā otinga ohanga ake, haumaru ake hoki.
9. Ngā Aromatawai Wai Rorohiko (CFD)
I ngā wā e taunekeneke ai te konganuku me ngā wai, pērā i ngā wāhanga rererangi, i ngā paipa rānei, ka whakaratohia e te Computational Fluid Dynamics (CFD) he māramatanga nui ki te pānga o te rere o te wai ki ngā tukanga waikura, te horo rānei.
Ka whakamahia te CFD hei whakatauira i te rere o ngā wai huri noa, mā roto rānei i ngā wāhanga whakarewa, kia taea ai e ngā kaihangarau te matapae ko ēhea ngā wāhi ka tino pāngia e te pakaru, te rahunga rānei nā te taunekeneke me te wai.
Whakamutunga
He tukanga tino uaua te tātari i te pakaru o te konganuku, ā, me whai huarahi maha-mātauranga, he maha ngā tikanga e whakamahia ana, arā, te makaro me te moroiti, te whakangaro me te kore whakangaro. Mā te māramatanga hōhonu ki ēnei tikanga ka āwhina i te tautuhi i ngā pūtake o te pakaru, engari ka whakawhanake hoki i ngā rauemi me ngā hoahoa pai ake.
Nā ngā hangarau hou pēnei i te SEM, TEM, UT, XRD, FEA, me te CFD kua tika ake, kua whai hua ake, kua whānui ake hoki te tātari rahunga. Mā ēnei whanaketanga hangarau, ka taea e tātou te aro atu ki ngā wero hou o te ao o ngā rauemi whakarewa me te māia ake me te mōhio hohonu ake. Ko te mahi e whai ake nei ko te whakarite kia whakamahia ngā kitenga mai i te tātari rahunga ki te mahi hei ārai i te hokinga mai o ngā rahunga rite tonu ā muri ake nei.
