(1) ʻAʻole kiʻekiʻe ka ikaika a me ka paʻakikī o nā polycrystals magnesium maʻemaʻe.No laila, ʻaʻole hiki ke hoʻohana pololei ʻia ka magnesium maʻemaʻe ma ke ʻano he mea hana.Hoʻohana mau ʻia ka magnesium maʻemaʻe no ka hoʻomākaukau ʻana i nā ʻāpana magnesium a me nā ʻāpana ʻē aʻe.
(2) ʻO ka magnesium alloy ka mea ʻenehana ʻōmaʻomaʻo me ka hoʻomohala nui a me ka hiki ke hoʻohana ʻia i ke kenekulia 21st.
Hiki i ka Magnesium ke hana i nā ʻāpana me ka aluminika, keleawe, zinc, zirconium, thorium a me nā metala ʻē aʻe.Ke hoʻohālikelike ʻia me ka magnesium maʻemaʻe, ʻoi aku ka maikaʻi o kēia alloy i nā waiwai mechanical a he mea hoʻolālā maikaʻi.ʻOiai he mau waiwai piha maikaʻi nā alumini magnesium hana ʻia, ʻo ka magnesium kahi lattice hexagonal paʻa paʻa, paʻakikī i ka hana plastically a loaʻa nā kumukūʻai kiʻekiʻe.No laila, ʻoi aku ka liʻiliʻi o ka nui o nā mea hoʻohui magnesium i hana ʻia i kēia manawa ma mua o ka nui o nā alloy magnesium cast.Nui nā mea i loko o ka papaʻaina i hiki ke hana i nā alloys me ka magnesium.ʻAʻole hiki i ka Magnesium a me ka hao, beryllium, potassium, sodium, etc.Ma waena o nā mea hoʻoikaika ikaika o ka magnesium alloy, e like me ka hopena o nā mea hoʻohui i nā waiwai mechanical o nā alloy magnesium binary, hiki ke hoʻokaʻawale ʻia nā mea alloying i ʻekolu mau ʻāpana:
1. ʻO nā mea e hoʻomaikaʻi ai i ka ikaika: Al, Zn, Ag, Ce, Ga, Ni, Cu, Th.
2. ʻO nā mea e hoʻomaikaʻi ai i ka paʻakikī: Th, Ga, Zn, Ag, Ce, Ca, Al, Ni, Cu.
3. Nā mea e hoʻonui ai i ka paʻakikī me ka loli ʻole o ka ikaika: Cd, Ti, a me Li.
4. Nā mea e hoʻonui nui ai i ka ikaika a hoʻemi i ka paʻakikī: Sn, Pd, Bi, Sb.
Ka hopena o nā mea haumia i loko o ka magnesium
A. ʻO ka hapa nui o nā mea haumia i loko o ka magnesium he hopena maikaʻi ʻole i nā ʻano mechanical o ka magnesium.
B. Ke oi aku ka MgO ma mua o 0.1%, e hoemi ia na waiwai mechanical o ka magnesium.
Ke ʻoi aku ka ʻike o C a me Na i ka 0.01% a i ʻole ka ʻike o K ma mua o 0.03, e hoʻemi nui ʻia ka ikaika tensile a me nā waiwai mechanical ʻē aʻe o ka magnesium.
D. Aka, i ka hiki ana o na mea elua i 0.07% a hiki i ka K ma 0.01%, aole emi ka ikaika o ka magnesium, aka, o kona plasticity wale no.
ʻO ke kūpaʻa corrosion o ke alumini magnesium maʻemaʻe kiʻekiʻe e like me ka alumini
1. ʻO ka matrix alloy matrix he hexagonal lattice, ʻoi aku ka ikaika o ka magnesium, a wehe ʻia ke kiʻi oxide, no laila ʻoi aku ka paʻakikī o kāna hoʻolei ʻana, ka hoʻololi ʻana i ka plastik a me ke kaʻina hana anti-corrosion ma mua o ke alumini alumini.
2. ʻO ke kūpaʻa ʻino ʻana o nā alumini magnesium maʻemaʻe kiʻekiʻe e like a i ʻole ka haʻahaʻa ma mua o nā alumini alumini.No laila, ʻo ka hana ʻoihana o nā mea hoʻoheheʻe magnesium maʻemaʻe kiʻekiʻe he pilikia koʻikoʻi e hoʻoholo ʻia i ka hoʻohana nui ʻana o ka magnesium alloys.
Ka manawa hoʻouna: Dec-06-2021