Pāpā kila kila Titanium
ʻO ka wehewehe pōkole:
ʻO ka pā kila kila Titanium he mea i hoʻohui ʻia me ka titanium ma ke kumu a me nā mea ʻē aʻe i hoʻohui ʻia.ʻElua ʻano o nā kristal homogenous a heterogeneous ka Titanium: kahi ʻano hexagonal paʻa paʻa ma lalo o 882 ℃ α Titanium, cubic i waena o ke kino ma luna o 882 ℃ β Titanium.
ʻO ka alloy Titanium kahi huila i haku ʻia me ka titanium e like me ke kumu a me nā mea ʻē aʻe i hoʻohui ʻia.ʻElua ʻano o nā kristal homogenous a heterogeneous ka Titanium: kahi ʻano hexagonal paʻa paʻa ma lalo o 882 ℃ α Titanium, cubic i waena o ke kino ma luna o 882 ℃ β Titanium.
Hiki ke hoʻokaʻawale ʻia nā mea huila i ʻekolu mau ʻāpana e pili ana i kā lākou hopena i ka mahana hoʻololi o ka pae:
① Paʻa α ʻO nā mea e hoʻonui ai i ka mahana hoʻololi ʻana he α ʻO nā mea paʻa me ka aluminika, carbon, oxygen, a me ka nitrogen.ʻO ka alumini ka mea hoʻohui nui o ka titanium alloy, he hopena koʻikoʻi i ka hoʻomaikaʻi ʻana i ka mahana o ka lumi a me ka ikaika kiʻekiʻe o ka wela, e hōʻemi ana i ka gravity kikoʻī, a me ka hoʻonui ʻana i ka modulus elastic.
② Paʻa β ʻO nā mea e hoʻohaʻahaʻa i ka mahana hoʻololi o ka pae he β Hiki ke hoʻokaʻawale ʻia nā mea paʻa i ʻelua ʻano: isomorphic a me eutectoid.ʻO nā huahana e hoʻohana ana i ka titanium alloy ʻO ka mua e pili ana i ka molybdenum, niobium, vanadium, etc.ʻO ka hope e pili ana i ka chromium, manganese, keleawe, hao, silika, etc.
③ ʻAʻole liʻiliʻi ka hopena o nā mea ʻokoʻa e like me ka zirconium a me ka tin i ka mahana hoʻololi.ʻO ka oxygen a me ka nitrogen i loko o ka α Aia kahi solubility kiʻekiʻe i ka pae, he hopena hoʻoikaika koʻikoʻi i nā alloys titanium, akā e hōʻemi ana i ka plasticity.ʻO ka oxygen a me ka nitrogen maʻiʻo i ka titanium ka mea maʻamau i hōʻike ʻia ma lalo o 0.15 ~ 0.2% a me 0.04 ~ 0.05%, kēlā me kēia.ʻO ka hydrogen i loko o ka α He haʻahaʻa loa ka hoʻoheheʻe ʻana i ka māhele, a ʻo ka nui o ka hydrogen i hoʻoheheʻe ʻia i loko o ka titanium alloys hiki ke hana i nā hydride, e hoʻoheheʻe ʻia ka alloy.ʻO ka maʻi hydrogen i loko o nā alloys titanium e mālama mau ʻia ma lalo o 0.015%.Hiki ke hoʻohuli ʻia ka hoʻoheheʻe ʻana o ka hydrogen i ka titanium a hiki ke hoʻoneʻe ʻia e ka annealing vacuum.