Ke keleawe maʻamau

keleawe alakaʻi
ʻAʻole hiki ke hoʻoheheʻe ʻia ke kēpau i loko o ke keleawe a ua puʻunaue ʻia ma nā palena ʻai ma ke ʻano o nā ʻāpana manuahi.Wahi a kāna hui, ʻelua ʻano o ke keleawe keleawe: α a me (α+β).Ma muli o nā hopena maikaʻi ʻole o ke kēpau, he haʻahaʻa haʻahaʻa haʻahaʻa loa ke keleawe alpha-lead, no laila hiki ke hoʻoheheʻe ʻia a wela paha.(α+β) He palaki maikaʻi ke keleawe kepau i ka wela kiʻekiʻe a hiki ke hana ʻia.

keleawe keleawe
ʻO ka hoʻohui ʻana i ka tin i ke keleawe hiki ke hoʻomaikaʻi maikaʻi i ke kūpaʻa wela o ka huila, ʻoi aku ka hiki ke pale aku i ka ʻinoʻino o ke kai, no laila ua kapa ʻia ke keleawe keleawe "navy brass".
Hiki ke hoʻoheheʻe ʻia ka tin i loko o ka hopena paʻa paʻa keleawe a pāʻani i kahi hopena hoʻoikaika ikaika.Akā me ka hoʻonui ʻia o ka ʻike tin, e ʻike ʻia ka brittle r-phase (CuZnSn compound) i loko o ka huila, ʻaʻole kūpono i ka deformation plastic o ka alloy, no laila ʻo ka ʻike tin o ke keleawe keleawe ma ka laulā o 0.5% a 1.5%.
ʻO HSn70-1, HSn62-1, HSn60-1 a pēlā aku nā keleawe keleawe maʻamau.ʻO ka mea mua he alpha alloy, nona ka plasticity kiʻekiʻe a hiki ke hana ʻia e ke anuanu a me ka wela.ʻO nā'āpana o nā papaʻelua hope loa he (α + β)ʻelua-phase, a he wahi liʻiliʻi o ka r-phase pinepine, aʻaʻole kiʻekiʻe ka plasticity i ka mahana wela, a hiki ke hoʻololi wale i ka wela. mokuʻāina.

keleawe manganese
ʻOi aku ka solubility o Manganese i ke keleawe paʻa.ʻO ka hoʻohui ʻana i ka 1% a i ka 4% o ka manganese i ke keleawe hiki ke hoʻonui nui i ka ikaika a me ke kūpaʻa ʻana o ka ʻōpala me ka ʻole e hōʻemi i kona plasticity.
He ʻano (α+β) ka keleawe manganese, a ua hoʻohana mau ʻia ʻo HMn58-2, a ʻoi aku ka maikaʻi o kāna hana ʻana i ke kaomi ma lalo o ke anuanu a me ka wela.

keleawe hao
I ka hao keleawe, hoʻoheheʻe ʻia ka hao me nā ʻāpana waiwai nui o ka hao, e lawelawe ana ma ke ʻano he kristal nuclei e hoʻomaʻemaʻe i nā ʻanoʻano aniani a pale i ka ulu ʻana o nā kīʻaha recrystallized, ma laila e hoʻomaikaʻi ai i nā waiwai mechanical a me ke kaʻina hana o ka alloy.ʻO ka mea hao i loko o ke keleawe hao ma lalo o 1.5%, ʻo kona ʻano (α+β), he ikaika kiʻekiʻe a me ka paʻakikī, ka plasticity maikaʻi i nā mahana kiʻekiʻe, a hiki ke hoʻololi ʻia i nā kūlana anuanu.ʻO ka papa maʻamau ʻo Hfe59-1-1.

keleawe nikela
Hiki i ka Nickel a me ke keleawe ke hana i ka hopena paʻa mau, e hoʻonui nui i ka māhele α-phase.ʻO ka hoʻohui ʻana o ka nickel i ke keleawe hiki ke hoʻomaikaʻi nui i ka pale ʻana o ke keleawe i ka lewa a me ka wai kai.Hiki nō hoʻi i ka Nickel ke hoʻonui i ka mahana recrystallization o ke keleawe a hoʻoikaika i ka hoʻokumu ʻana i nā ʻano hua ʻoi aku ka maikaʻi.
ʻO ka HNi65-5 nickel brass he hoʻolālā α hoʻokahi-phase, he plasticity maikaʻi i ka lumi wela a hiki ke hoʻololi ʻia ma lalo o nā kūlana wela.Eia nō naʻe, pono e hoʻomalu pono ʻia ka ʻike o ke alakaʻi haumia, a i ʻole e hōʻemi loa ia i ka hana wela o ka alloy.