ʻO wai ka mea maikaʻi, titanium a me ke kila kila, he aha ka ʻokoʻa ma waena o ka titanium a me ke kila kila?

ʻO ke kila Titanium a me ke kila kuhili ʻole ka maikaʻi?

Loaʻa i ka Titanium alloy a me ke kila kila ko lākou pono ponoʻī. 1, inā maikaʻi loa ka hoʻohana ʻana i ka hana, titanium alloy, a me ke kila kila, akā ʻoi aku ka maikaʻi o ka titanium alloy holoʻokoʻa. 2, inā ʻoi aku ke kumukūʻai o ka titanium alloy, ʻoi aku ka maikaʻi no nā kūlana hoʻokele waiwai o ka ʻohana, ʻoi aku ka maikaʻi o ke kila kila, ʻoi aku ke kumukūʻai no ka hoʻohana ʻana i kēlā me kēia lā. 3, ʻoiaʻiʻo, ke kumu kūʻai o ka titanium alloy ʻoi aku ka maikaʻi, akā ʻoi aku ka maikaʻi o ka hoʻohana ʻana, akā ʻoi aku ka maikaʻi o ke kila stainless no ka hoʻohana ʻana i kēlā me kēia lā, a ʻaʻole nui ke kumukūʻai.

Titanium a me ka titanium alloy density ʻo 4.51 wale nō, ʻoi aku ka liʻiliʻi ma mua o ke kila, a ʻo ka hapalua wale nō o ke kaumaha o ke kila, akā ʻo kona ikaika a me ke kila kalapona maʻamau ua like ia. Hoʻokaʻawale ʻia ʻo Titanium ma ke ʻano he metala thermodynamically unstable, ikaika loa, hiki i ka titanium metala ke hana i kahi kiʻi ʻoniʻoni kūlohelohe (titanium dioxide) me ka ea, kēia papa o ka paʻa paʻa, adhesion ikaika, a me ka pale maikaʻi loa o ke kiʻi oxide, e hoʻoholo i ka pale ʻana o ka titanium. , No laila, loaʻa i ka titanium ke kūpaʻa corrosion maikaʻi loa, i ukali ʻia e kahi ʻano māmā, ka ikaika tensile kiʻekiʻe, nā waiwai mechanical maikaʻi kekahi hiʻohiʻona maikaʻi loa o nā alloys titanium.

ʻOi aku ka maikaʻi o ke kūpaʻa ʻana o ka titanium: ma lalo o 550 ℃ he maʻalahi ka hana ʻana i kahi kiʻi ʻoniʻoni ʻoniʻoni titanium, no laila ʻaʻole maʻalahi ka hoʻonui ʻana i ka oxidation, ʻo ka ea pō, ka wai kai, ka mahu, a me kekahi mau waikawa, alkalis, a me nā media palupalu. kiʻekiʻe kūʻē i ka nalowale o ka corrosion mea.

He maikaʻi ka ikaika wela o ka Titanium: titanium alloy melting point o 1660 ℃, kiʻekiʻe ma mua o ka hao, he kiʻekiʻe thermal ikaika, hiki i loko o kēia mau mea 550 ℃, oiai ma ka haʻahaʻa haʻahaʻa surfaced i oi aku ka paʻakikī.

He paʻakikī ka hana ʻana o ka Titanium: paʻakikī loa ka wiliwili, electroplating, a me ke kiʻi anu. Pono e hoʻokō ʻia ka welding a me ka plating ma lalo o kahi ʻōpala a i ʻole ma kahi kūlana i hoʻopiha ʻia me ke kinoea inert (vacuum ion plating).

Hoʻohana nui ʻia nā alloys Titanium ma nā ʻano ʻano like ʻole no ko lākou ikaika kiʻekiʻe, ke kūpaʻa ʻino maikaʻi, a me ke kūpaʻa wela kiʻekiʻe.

ʻO ka nui o ka titanium alloy ma kahi o 4.51g/cm3, ʻo 60% wale nō ia o ke kila. ʻO ka mānoanoa o ka titanium maʻemaʻe kahi kokoke i ke kila maʻamau, a ʻoi aku ka ikaika o kekahi mau ʻāpana titanium ikaika kiʻekiʻe i ka ikaika o nā mea hao hao. No laila, ka ikaika kiko'ī / density o ka titanium alloy ʻoi aku ka nui ma mua o nā mea hana metala ʻē aʻe, e ʻike i ka Papa 7-1, a hiki ke hana ʻia me ka ikaika o ka hui, ʻoʻoleʻa maikaʻi, a me nā ʻāpana māmā. ʻO nā ʻāpana ʻenekini mokulele, nā iwi, nā ʻili, nā mea hoʻopaʻa, a me nā mea pae ʻāina i hoʻohana i nā alloys titanium.

ʻO 304 he kila kila kila, hoʻohana nui ʻia no ka hana ʻana i nā mea hana a me nā ʻāpana mīkini e pono ai ka hana holoʻokoʻa maikaʻi (ke kūpaʻa corrosion a me ka formability). No ka mālama ʻana i ke kūpaʻa corrosion i loko o ke kila kila, pono e loaʻa i ke kila ʻoi aku ma mua o 18% chromium a ʻoi aku ma mua o 8% nickel content.

Me ka nui o 7.93g / cm3, ua kapa ʻia ʻo 18/8 stainless steel i ka ʻoihana. Kū'ē i nā mahana a hiki i 800 degere, loaʻa iā ia nā waiwai hoʻoponopono maikaʻi a me ka paʻakikī kiʻekiʻe a hoʻohana nui ʻia i ka ʻoihana ʻenehana a me nā mea hoʻonaninani a me ka ʻoihana meaʻai a me nā lāʻau lapaʻau. Ma ke ʻano o ka ikaika, haʻahaʻa haʻahaʻa, a me ka pale ʻana i ka corrosion, mea hoʻoheheʻe titanium maikaʻi ka maikaʻi.