Mo te paipa hau maori tawhiti, ma te whakamahi i te paipa paipa teitei te ara nui hei penapena utu.Ko nga mahi ahumahi paipa a Kanata i whakaatu: ka whakatauritea ki te X60, ka taea te whakaiti i te 14% te whakatamarikitanga o te matotoru pakitara paipa paipa X70; Ki te whakatauritea ki te X70, ka taea te whakaiti ake i te 12.5%.Ko te whakapiringa tetahi o nga hononga matua i roto i te hanga paipa maitai me te hanga paipa, na te koretake o te hurihanga waiariki fehokotaki, he waahi ngoikore te rohe o te paipa.Ko te reiti whakamahana te tawhā matua ki te whakatau i nga mahi whakahaere a te HAZ, e pa ana ki te whakauru wera fehokotaki'anga, te matotoru o te mea mahi me te ahuatanga iraruke a tawhio noa.Na reira, te hanga i te tukanga fehokotaki'anga whaitake, mana fehokotaki'anga tere tautauā taea te tiki pai whakahaere mahi o te HAZ, karo kapiti HAZ, kia rite ki te whakarite i te mahi haumaru o te paipa.

Na te pikinga o te reiti whakamahana, ko te hangahanga moroiti o te X80 paipa maitai HAZ te mea matua ki te ferrite polygonal, ki te whai matua ki te B me te witi o te lath martensite, ka piki ake te pakeke.I te mea he nui rawa te urunga wera fehokotaki'anga, he tiketike rawa ranei te wera o mua i te whakamahana me te iti iho i te 2 te tere whakamahana℃/ s, X80 paipa maitai whakahaere HAZ kua hoatu matua ki ki B polygon ferrite witi ranei, engari e tika ana ki te noho o te pearlite me te toha poraka rōpū motu MA, arahi ki te mahi kiriata kiripaka rawakore mahi.I te mea he iti rawa te urunga wera fehokotaki'anga he iti rawa ranei te wera o mua i te whakamahana me te tere whakamahana he nui ake i te 30℃/ s, X80 paipa paipa whakahaere HAZ kua hoatu matua ki te BF, lamellar martensite ranei, hua i roto i te hekenga o te mahi pānga kiriata taratara.Te hanga i nga mahi whakahiato tika, te whakahaere i te reiti whakamahana i roto i te whānuitanga o te 2 ~ 30℃/ s, X80 paipa maitai whakahaere HAZ kua hoatu matua ki B, kua marara motu motu MA, te rohe witi matarohia he pakeke tika, me te pai pānga mahi.