ʻO ka hopena maikaʻi o ka honua kakaʻikahi ma nā mea metala non-ferrous i ʻike loa ʻia i nā alloy magnesium. ʻAʻole wale ka hoʻopili ʻana i nā mea hoʻohenehene Mg-RE, akā loaʻa ka hopena maopopo loa i ka Mg-Al, Mg-Zn a me nā ʻōnaehana alloy ʻē aʻe. ʻO kāna hana nui penei:
1. E hoʻomaʻemaʻe i ka palaoa
Hiki ke hoʻomaʻemaʻe i nā hua o ka magnesium a me ka magnesium alloys kūpono o nā ʻāina laha ʻole. ʻO ka mea mua e hoʻomaʻemaʻe i nā grainofs o ka hoʻonohonoho hoʻolei ʻana. ʻO ke ʻano o ka hoʻonohonoho hoʻolei ʻana i nā mea ʻenehana honua e hoʻomaʻemaʻe i ka magnesium alloy ʻaʻole ia ka hana o ka nuclei heterogeneous. ʻO ke ʻano o ka hoʻomaʻemaʻe ʻana i ka palaoa maikaʻi o ka magnesium a me ka magnesium alloy grain sinofs o nā mea honua laha ʻole ka piʻi ʻana o ka overcooling ma ka ʻoki ʻoki o ka crystallization. ʻO ka lua o ka pale ʻana i ka recrystallization a me ka ulu ʻana o ka palaoa i ke kaʻina hana wela a me ke kaʻina hana annealing.
2. Hehee ka hoomaemae
ʻOi aku ka pilina o nā mea ʻeleʻele ʻeleʻele me ka ʻili ma mua o ka magnesium a me ka oxygen, no laila hiki ke waiho ʻia me ka Rare Earth oxides e hui pū me Mgo a me nā oxides ʻē aʻe i ka heheʻe a laila wehe i ka oxidizing. Hoʻopili me ka hydrogen a me ka mahu wai i loko o ka heheʻe, e hana ana a i ʻole nā mea hoʻoheheʻe honua i hiki i ka manaʻo o ka deoxygenation. Hiki ke hoʻohui pū i ka wai hoʻoheheʻe a hōʻemi i ka shrivellability o ka hoʻolei ʻana, holomua fineness.
3. Holomua lumi wela huila ikaika
ʻO ka hapa nui o ka honua mau mea i loko o ka magnesium ka nui o ka solubility paʻa, a me ka hāʻule ʻana o ka wela selyses aia kahi hoʻololi nui i ke degere o ka solubility, no laila, ʻo nā mea honua ʻokoʻa i hoʻohui ʻia i ka hoʻoikaika paʻa-soluble, ʻo ia nō kahi mea hoʻoikaika ʻelemakule maikaʻi o ka magnesium alloy, kekahi mau mea hoʻohui honua a me ka dispersive reinforcement.
4. Ke kūpaʻa wela o nā hana mechanical alloy holomua
ʻO nā mea ʻokoʻa honua nā mea hoʻohui maikaʻi loa o ke kūpaʻa wela o ka magnesium alloy, hiki ke hoʻomaikaʻi i ka ikaika kiʻekiʻe o ka Mg alloy a me ke kiʻekiʻe kiʻekiʻe o ka creep resistance, ʻo nā kumu he nui: liʻiliʻi ka coefficient stenome honua ma ka magnesium, hiki ke hoʻolōʻihi i ke kaʻina hana recrystallization a me ka holomua ʻana o ka recrystallization wela, hoʻohui i ka hopena kahiko a me ka pae desoluble, pale ʻia ka hui ʻana o ka honua me ka paʻa o ka wela. misalignment o ka neʻeʻana, a holomua i ka wela kiʻekiʻe kolo kolo.
5. Ke kū'ē kū'ē i nā mea hao hao
Ma muli o ka hoʻomaʻemaʻe ʻana o ka hoʻoheheʻe ʻana, hoʻemi ʻia nā hopena ʻino o ka hao haumia, a me nā mea ʻē aʻe, a laila hoʻomaikaʻi ʻia ke kūpaʻa corrosion.