Bar Niobium

Kaumaha: RO4200-1, RO4210-2

Nā kikoʻī: Φ3.0~Φ100mm

Kūlana hoʻokō: ASTM B 392-98

Noi huahana

Hoʻohana nui ʻia nā koʻokoʻo a me nā uea i nā kemika, uila, mokulele, a me nā kahua aerospace.

Niobium a me nā lāʻau hao niobium hoʻohana ʻia e like me nā mea hana no nā aero-engines a me nā nozzles rocket, e like me ka reactor i loko o nā ʻāpana a me nā mea pale, a no ka hana ʻana i nā ʻāpana pale corrosion i loko o nā kūlana corrosive nitric, hydrochloric, a i ʻole sulfuric acid.

ʻO ka hoʻohui ʻana o ka zirconium i ka niobium e hoʻomaikaʻi nui i ka pale ʻana a me ka ikaika o ka mea.

Niobium a me niobium-zirconium alloy uea ua nui hoʻohana 'ia i loko o ka hana ana i kiʻekiʻe-puʻe sodium kukui a me electrolytic capacitor anode alakai. (Ke kūlana hoʻokō: ASTMB392-95).

ʻO nā ala hoʻoikaika nui no ka niobium ka hopena paʻa, ka ua, a me ka mālama wela deformation. I loko o ka niobium alloys, hiki i ka hoʻokomo ʻana i nā mea hoʻohui i ka tungsten a me ka molybdenum ke hoʻomaikaʻi nui i ko lākou ikaika kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, akā ʻoi aku ka nui e hōʻemi i ka hana kaʻina hana. ʻO Tantalum kahi mea hoʻoikaika maʻalahi a hoʻohaʻahaʻa i ka mahana hoʻololi plastic-brittle o ka alloy. ʻO ke ala ʻē aʻe e hoʻoikaika ai i nā alloys niobium ʻo ia ka hoʻohui ʻana i ka titanium, zirconium, a me ka hafnium, a me kekahi pākēneka o ke kalapona e hana i kahi māhele carbide diffuse no ka hoʻoikaika ʻana i ka ua.

Eia kekahi, hiki i kēia mau mea hana ke hoʻomaikaʻi i nā waiwai ʻē aʻe, e like me ka titanium hiki ke hoʻomaikaʻi nui i ka pale ʻana o ka oxidation a me ka hana kaʻina hana o ka alloy; Hiki i ka hafnium a me ka zirconium ke hoʻomaikaʻi i ke kūʻē ʻana o ka huila i ka corrosion o nā metala alkali hoʻoheheʻe; Hiki i ka hafnium ke hoʻomaikaʻi nui i ka pale ʻana o ka oxidation a me ka hana kuʻi ʻana o ka alloy. Ka ikaika kiʻekiʻe nā huila niobium i loko o ka nui o nā mea hoʻonā paʻa (tungsten, molybdenum, tantalum, a me nā mea ʻē aʻe) no ka hoʻoikaika ʻana i ka hopena paʻa, a hoʻohana pū ʻia ka hoʻoikaika ʻana i ka ua no ka hāʻawi ʻana i ka ikaika kiʻekiʻe (e nānā i ka hoʻoikaika ʻana i nā metala). ʻOi aku ka paʻakikī o kēia mau alloys i ka hana plastically a koi i ka mana koʻikoʻi o nā ʻāpana kaʻina deformation. Hoʻohui ʻia nā alloys ikaika me ka Nb-10W-1Zr-0.1C i loaʻa i ka carbide precipitation strengthening phase, hoʻohui ʻia nā ʻano ʻano ʻē aʻe i ka ʻike waena o nā mea hoʻoikaika ikaika e hōʻoia i ka hana holoʻokoʻa maikaʻi loa. ʻO nā alloys haʻahaʻa haʻahaʻa e like me ka hoʻohui ʻana i nā nui kūpono o ka titanium, zirconium, a me ka hafnium, hiki iā ʻoe ke hōʻoia i ka hana ʻana i ka hana maikaʻi.