Ko te tikanga, kāore he aukumetanga o te maitai kore waikura austenitic. Engari he aukumetanga tō te martensite me te ferrite. Heoi anō, tera pea he aukumetanga anō hoki te austenitic. Ko ngā take e whai ake nei:

Ina totoka, ka puta pea tētahi wāhanga o te aukumetanga nā te take whakarewa; hei tauira, 3-4, he āhuatanga noa te 3 ki te 8% o te toenga, nō reira me noho te austenite ki te kore-aukumetanga, ki te aukumetanga ngoikore rānei.

Kāore te maitai kore-aukume i te maitai austenitic, engari ina puta te wāhanga γ ki te wāhanga martensite, ka puta te aukume i muri i te whakapakeketanga matao. Ka taea te whakamahi i te maimoatanga wera hei whakakore i tēnei hanganga martensite me te whakahoki mai i tōna kore-aukume.