He hanganga iti-wāhanga-rua tō te maitai kore waikura takirua, ā, ko te wāhanga rōrahi o te ferrite me te austenite he tata ki te 50%. Nā te hanganga iti-wāhanga-rua, ka whakakotahihia e ēnei maitai ngā āhuatanga pai rawa atu o ngā maitai kore waikura ferritic me te austenitic. I te nuinga o te wā, ka whakaratohia e te wāhanga ferritic (whakawhitinga poraka tinana-pokapū) he kaha miihini teitei, he pakari pai me te ātete waikura pai, ko te wāhanga austenitic (whakawhitinga poraka mata-pokapū) he pai te ngāwari.
Nā te whakakotahitanga o ēnei āhuatanga, e whakamahia whānuitia ana ngā maitai kowiri tira takirua i roto i ngā ahumahi matū hinu, penupenu me te pepa, moana me te pūngao. Ka taea e rātou te tu atu ki ngā taiao uaua, te whakaroa i te roa o te mahi, me te mahi i roto i ngā āhuatanga taiao tino kino.
Ka whakaitihia e ngā rauemi kaha-teitei te matotoru me te taumaha o te wāhanga. Hei tauira, ka taea e te maitai kore waikura takirua-rahi te whakarato i te kaha tuku me te ātete pakaru e toru ki te whā ngā wā o te maitai kore waikura 316.
E toru ngā momo o ngā maitai kore waikura takirua, i runga i te nui o te chromium (Cr) me te tau ōrite o te ātete poka (PREN):
Ko tētahi o ngā āhuatanga matua o te whakarewa i te DSS, SDSS, HDSS me ngā maitai kowiri tira motuhake ko te whakahaere i ngā tawhā whakarewa.
Ko ngā whakaritenga mō te tukanga whakarewa i roto i te umanga hinu matū e whakatau ana i te PREN iti rawa e hiahiatia ana mō ngā konganuku whakakī. Hei tauira, e hiahiatia ana e te DSS he uara PREN o te 35, ko te SDSS ia e hiahiatia ana he uara PREN o te 40. E whakaatu ana te 1 i te DSS me tana konganuku whakakī e rite ana mō te GMAW me te GTAW. Hei tikanga, ko te ihirangi Cr i roto i te konganuku whakakī e rite ana ki te ihirangi Cr i roto i te konganuku turanga. Ko tētahi tikanga hei whakaaro mā te whakamahi i te GTAW mō ngā pakiaka me ngā awa wera ko te whakamahi i ngā konganuku whakakī superalloy. Mena he koretake te konganuku whakarewa nā te tikanga ngoikore, ka taea e te konganuku whakakī kua nui rawa te whakarewa te whakarato i te PREN e hiahiatia ana me ētahi atu uara mō te tauira whakarewa.
Hei tauira, hei whakaatu i tēnei, ka tūtohu ētahi kaihanga kia whakamahia te waea whakakī SDSS (25% Cr) mō ngā koranu DSS (22% Cr) me te waea whakakī HDSS (27% Cr) mō ngā koranu SDSS (25% Cr). Ka taea hoki te whakamahi i te waea whakakī HDSS mō ngā koranu HDSS. Kei roto i tēnei takirua austenitic-ferritic te 65% ferrite, 27% chromium, 6.5% nickel, 5% molybdenum, ā, e kiia ana he iti iho i te 0.015% te waro iti.
Ki te whakatauritea ki te SDSS, he nui ake te kaha whakaputa o te HDSS, ā, he pai ake te ātete ki te waikura o te poka me te kapiti. He nui ake hoki tōna ātete ki te pakaru o te hauwai me te ātete ki ngā taiao waikawa kaha i te SDSS. Ko te tikanga o tōna kaha nui he iti ake ngā utu tiaki i roto i te hanga paipa, nā te mea kāore e hiahiatia he tātaritanga huānga mutunga kore mō te konganuku whakarewa he kaha rawaka, ā, he iti ake te tūpato o ngā paearu whakaae.
I te whānuitanga o ngā rauemi turanga, ngā whakaritenga miihini me ngā āhuatanga whakahaere, tēnā kōrero ki tētahi tohunga DSS me te tono whakarewa whakakī i mua i te haere tonu me tō kaupapa e whai ake nei.
Ko te WELDER, i mua ko Practical Welding Today tōna ingoa, e tohu ana i ngā tāngata tūturu e hanga ana i ngā hua e whakamahia ana e tātou, e mahi tahi ana hoki i ia rā, i ia rā. Neke atu i te 20 tau tēnei maheni e mahi ana ki te hapori whakarewa i Amerika Te Raki.
Nā te urunga katoa ki te putanga matihiko o The FABRICATOR, he māmā noa iho te uru atu ki ngā rauemi ahumahi whai hua.
Kua taea te uru atu ki te putanga mamati o The Tube & Pipe Journal, e whakarato ana i te urunga māmā ki ngā rauemi whai hua o te ahumahi.
Whiwhi urunga matihiko katoa ki te STAMPING Journal, e whakaatu ana i ngā hangarau hou, ngā mahi pai me ngā purongo ahumahi mō te mākete tā whakarewa.
Nā te urunga matihiko katoa ki The Fabricator en Español, he māmā noa iho tāu uru atu ki ngā rauemi ahumahi whai hua.