ʻO Inconel 718 a me kāna mau hoʻohana

(Inconel 718 a me kāna mau hoʻohana)

Ma waena o nā ʻano mea like ʻole, ʻo Inconel 718 kekahi o nā mea paʻa paʻa loa, ʻaʻole i kū wale i ka corrosion o ka lewa akā hāʻawi pū kekahi i ka ikaika tensile kiʻekiʻe. Loaʻa iā ia ka mīkini maikaʻi maikaʻi, kahi e kūpono ai ia no ka nui o nā ʻoihana.High tensile ikaika

Ma waena o nā nickel-chromium alloys, hoʻohana ʻia ʻo Inconel 718 i nā noi e koi ai i ka ikaika kiʻekiʻe, ke kūpaʻa wela kiʻekiʻe a me ke kūpaʻa corrosion. Hoʻohana ʻia kēia alloy i nā ʻāpana airframe kiʻekiʻe a me nā ʻenekini jet. Aia ka nickel a me ka chromium i loko o ka alloy, me ka liʻiliʻi o ka molybdenum. Loaʻa iā ia ka ikaika tensile ma luna o 725 MPa, e kūpono ana ia no nā noi wela kiʻekiʻe.

Loaʻa i ka alloy 718 kahi papa oxide e pale iā ia mai ka pōʻino a me ka ʻino. Hāʻawi ka alloy i ke kūpaʻa maikaʻi i nā mahana kiʻekiʻe, a hiki i 1800degF. He wahi hehee ka 1430degC o ka huila, he mea kūpono ia no nā noi wela kiʻekiʻe.

Hoʻohana pinepine ʻia ʻo Inconel 718 i nā reactor nuklea, nā ʻenekini rocket a me nā pamu. Hoʻohana ʻia ia i nā lako kaua. He kiʻekiʻe ka ikaika tensile a me ka weldability maikaʻi. Hoʻohana ʻia ia i ka mea hana a me ka aerospace. Hoʻohana pinepine ʻia i nā ʻoihana pale a me nā ʻoihana petrochemical.

Loaʻa i ka alloy ka pale oxidation maikaʻi loa a me ka ikaika tensile haʻahaʻa o 1035 MPa. Ma waho aʻe o kona ikaika tensile kiʻekiʻe, loaʻa iā ia ka ikaika creep-rupture maikaʻi ma nā mahana a hiki i 1300degF. Hoʻohana ʻia ia no nā noi kiʻekiʻe, e like me ka ʻaila a me ka ʻili kinoea.

Ua kapa pinepine ʻia ʻo Inconel 718 he superalloy. He nickel-chromium alloy ia i loaʻa ka 17-21% chromium, niobium, a me ka tantalum. Loaʻa i ka alloy kahi kiʻekiʻe o ka nickel a hoʻohana mau ʻia no ka pale ʻana i ka corrosion. Hoʻohana ʻia ia e hana i nā profile uea a me nā bellows.

Hoʻohana pū ʻia ka alloy i nā mea hoʻopaʻa wela kiʻekiʻe. Loaʻa i ka Alloy 718 ke kūpaʻa kūpono i nā wela kiʻekiʻe a hiki ke hoʻohana ʻia i nā kūlana cryogenic. Loaʻa iā ia ke kūpaʻa oxidation maikaʻi loa i 1800degF. Eia kekahi, he ʻano paʻakikī kona a me ka formability maikaʻi. Hoʻohana kēia i ka alloy i nā hana hana.

Ua hoʻomaikaʻi ʻia ka alloy e hoʻonui i kona mau hiʻohiʻona. Ua hoʻohui ʻia ka mea nickel-chromium-molybdenum i ka huila e hāʻawi i ka ikaika tensile maikaʻi, luhi, kolo, a me ka haki. Loaʻa i ka alloy ka chromium a me ka molybdenum, e lilo ia i koho maikaʻi no ka wili.

He maikaʻi ka pale ʻana i ka oxidation a ua maʻalahi ka hana ʻana. Hiki ke hoʻohana ʻia kēia huila i loko o nā ʻano maʻamau a me nā ʻāpana, a hiki ke hoʻohana ʻia i nā ʻano hana like ʻole.

Kū'ē i ka pohō o ka lewa a me ka ʻino

Hiki i nā mea like ʻole ke hoʻopili i ka nui a me ka nui o ka corrosion. Aia kēia mau mea i ke ʻano o ke kaiapuni, ka mahana, ka haʻahaʻa, ka makani, a me ka ua. Ma waena o nā kumu maʻamau, ʻo nā mea haumia ʻoihana. Hoʻopuka kēia mau mea hoʻohaumia i nā pūhui metala e hiki ke hoʻohua i ka nui o ka corrosion.

ʻO kahi kumu nui o nā mea haumia o ka lewa ʻo ke kinoea chlorine. Hana ʻia kēia kinoea ma ka puhi ʻana i nā wahie fossil. Hiki i nā paʻakai chloride ke hoʻonui nui i ka nui o nā metala. Ma waho aʻe o nā chlorides, ʻo ka hydrogen sulfide kekahi mea koʻikoʻi corrosive. Loaʻa maʻalahi i nā ʻoihana hoʻomaʻemaʻe ʻaila.

ʻO nā kumu kaiapuni ʻē aʻe e hiki ke hoʻopilikia i ka nui o ka corrosion, ʻo ia ka ammonia, sulfur trioxide, a me nā ʻāpana uahi. Hiki ke ho'opō'ino like 'ia nā kila kalapona a me nā mea hao ha'aha'a. Hiki ke hoʻoikaika ʻia kēia mau metala ma ka hoʻohui ʻana i ka chromium a me ke keleawe. Eia nō naʻe, ʻo nā hoʻohui liʻiliʻi o kēia mau mea e hoʻonui wale i ka pale ʻana i ka corrosion.

ʻO nā kumu ʻē aʻe e hiki ke hoʻopilikia i ka corrosion ke ʻano o ka uhi a me ka mānoanoa o ke kiʻi ʻoniʻoni metala. ʻO kahi kiʻiʻoniʻoni oxide he pale pale e kōkua i ka pale ʻana i ka ʻino. I kekahi mau hihia, hiki ke hoʻomalu i ka mānoanoa o ke kiʻi.

Hiki ke hoʻokaʻawale ʻia nā metala i ʻekolu mau ʻano maʻamau e pili ana i ko lākou pale ʻana i ka corrosion. ʻO kēia mau metala he mau kila kila, carbon a me nā kila haʻahaʻa, a me nā kila kila kiʻekiʻe. Loaʻa i kēlā me kēia papa ke kūpaʻa corrosion. Eia nō naʻe, ʻo ke kūpaʻa ʻino maʻamau o kahi metala e hilinaʻi ʻia i kona ʻano huila a me ke ʻano o ke kaiapuni e ʻike ʻia ai.

Hiki ke hoʻomaikaʻi ʻia ke kūpaʻa ʻino maʻamau o kahi metala ma o ka hoʻohui ʻana i ke silika, chromium, nickel, keleawe, a me ka phosphorus. ʻO nā mea ʻē aʻe e hiki ke hoʻonui i ka pale ʻana i ka corrosion e komo pū me nā metala honua a me ka titanium.

Hoʻopilikia ʻia ka corrosivity o kahi kaiapuni e ka mamao mai kahi kumu wai kahakai. Pili ka maʻi paʻakai i nā kaiaola kai a me nā ʻano kai ʻole. Ke hoʻohana nei i kēia ʻike, hiki ke helu i ka corrosivity o kahi kaiapuni.

Hiki ke hoʻonui ʻia ka pale ʻana o ka corrosion i loko o kahi wai wai me ka hoʻohana ʻana i ke kiʻi ʻoniʻoni alumini oxide. ʻO ke kiʻiʻoniʻoni alumini oxide kahi kiʻiʻoniʻoni paʻakikī loa e hiki ke pale i ka pala. He papa hoʻoponopono wikiwiki hoʻi ia ma hope o ka pōʻino. Akā naʻe, ʻaʻole maʻalahi ka lanakila ʻana. Hiki ke hana ʻia kēia ʻāpana me ka hoʻouna ʻana i ke au uila ma o ka metala.

Mīkini

Ua mālama ʻia nā haʻawina like ʻole no ka hoʻomaopopo ʻana i ka machinability o Inconel 718. ʻO ke kumu o kēia mau haʻawina ʻo ia ka hoʻoholo ʻana i nā ʻano mechanical, chemical a thermophysical o Inconel 718, a me ka hoʻomaikaʻi ʻana i ka hana ʻoki ʻana o ka superalloy.

ʻO Inconel 718 kahi huila i hoʻohana mau ʻia i ka ʻoihana aerospace a me ka lewa. Ua ʻike ʻia no kāna mau ʻano mīkini maikaʻi a me nā waiwai kemika maikaʻi loa i nā wela kiʻekiʻe. Hoʻohana nui ʻia ia i ka ʻoihana hoʻokele. Hoʻohana ʻia ia i ka hana mana a me nā ʻoihana biomedical. Loaʻa i kēia superalloy ka ikaika tensile hope loa o 1.1 GPa.

Manaʻo ʻia ʻo ia he mea paʻakikī i ka mīkini ma muli o kāna conductivity thermal kiʻekiʻe a me nā koʻikoʻi thermo-mechanical kiʻekiʻe. No laila, ʻo ka machinability o Inconel 718 kahi hopohopo nui no nā mea hana. Loiloi ʻia ka Machinability o Inconel 718 me ka hoʻohana ʻana i kekahi mau ʻāpana machinability, e like me ka roughness surface, chip morphology, cutting force, tool wear, residual stresses, and surface integrity.

ʻO Inconel 718 kekahi o nā mea paʻakikī loa i ka mīkini aerospace. Ma kēia kūlana, ʻo ka ʻike piha ʻana i ka machinability o Inconel 718 e ʻae i ka maikaʻi o ka ʻāpana a hoʻonui i ke ola mea hana. ʻO ia hoʻi ka hopena i ka mālama kālā nui. Eia kekahi, hiki ke hoʻomaikaʻi ʻia ka machinability o Inconel 718 superalloy ma ka hoʻokō ʻana i kahi kaʻina hana maʻamau ʻole, e like me ka mīkini hoʻokuʻu uila.

Manaʻo ʻia ka mīkini hoʻokuʻu uila ʻo ia kekahi o nā ʻano hana maikaʻi loa no ka hana ʻana i ka Inconel 718. Ke hoʻohālikelike ʻia me ka mīkini maʻamau, ʻehā mau manawa o ka lawe ʻana i nā mea. He kumu kūʻai hoʻi ia i ka mīkini kōkua laser.

Ua mālama ʻia nā haʻawina noʻonoʻo no ka hoʻomaopopo ʻana i ke kaʻina hana mīkini a me ka mīkini hana chip o Inconel 718. Ua hōʻike ʻia ka haʻawina e loaʻa ana nā mea ʻelua i ka wā o ke kaʻina ʻoki. I ka pae mua, e hana ana ka mea i ka hana ʻoki puʻupuʻu. I ka lua o ka hana, e hana ana ka mea i ke kaʻina hana chip homogeneous. Eia kekahi, ua manaʻo ʻia ʻelua mau manaʻo e wehewehe i ka hoʻokumu ʻana o ka chip serrated.

Ua ʻike ʻia ka ʻāpana ʻelua ma o kahi microscope electron scanning. Ua ʻike ʻia ʻo ia i ka wā o ka hana ʻana i ka puʻupuʻu puʻupuʻu, hoʻololi mālie ka microstructure o ka ʻāʻī adiabatic. Manaʻo ʻia ua hele pū ʻia kēia hoʻololi me ka hoʻomaka ʻana o kahi kaʻina hana hoʻomāliʻi.

Nā koho hana wela

ʻO nā koho hoʻoponopono wela maʻamau no Inconel 718 ka hoʻonā ʻana a me ke kaomi isostatic wela. Hoʻonui ka hana hope i ka ikaika a hoʻemi i ka anisotropy deformation o ka mea. Eia naʻe, ʻaʻole maikaʻi ka pane ʻana i ka makahiki. No laila, hiki ke hoʻolālā ʻia nā lāʻau wela e hiki mai ana e hoʻohana i ka wā ʻelemakule lōʻihi.

Ma kēia pepa, ua noiʻi ʻia ka ʻāpana g'' ma Inconel 718 superalloy me ka hoʻohana ʻana i kahi haʻawina diffraction. Ua ʻike ʻia ʻo ka Ni3Nb body centered tetragonal g' precipitate is meta-stable. Eia kekahi, hoʻonui ʻia ka mea Nb ma nā ʻāpana interdendritic a ua hoʻonui ʻia ka mea Fe i nā kumu dendritic. Eia kekahi, ua hoʻomohala ʻia kahi ʻenehana hou e hoʻomalu i ka hoʻomohala ʻana o ka microstructure ma Alloy 718 i hana ʻia e Electron Beam Melting.

ʻO ka mālama wela maikaʻi loa no Inconel 718 alloy he 1800-1950degF anneal. Manaʻo ʻia kēia anneal no ka ikaika tensile notch, ka ikaika hopena haʻahaʻa haʻahaʻa a me ka ductility rupture notch. Pono e hoʻokō ʻia ka hoʻomaʻamaʻa wela i kahi ea hoʻemi iki e hōʻemi i ka infiltration ea. Pono ka lewa o ka umu ahi ma kahi o 2% carbon monoxide. Pono e loaʻa i ka umu ahi ke kaomi maikaʻi iki.

Ua mālama ʻia kēia haʻawina ma ka huila Inconel 718 i hana ʻia. Ua ʻike ʻia ka microstructure o ka mea i hana ʻia e nā dendrites cellular maikaʻi a me nā ʻāpana kolamu o ka hopena paʻa supersaturated. Eia kekahi, ua ana ʻia ka nui o ka mea e ka scanning electron microscopy a ua ana ʻia kona ʻano e ka microscopy electron transmission. Eia kekahi, ua ana ʻia ka nui o ka palaoa a ua ʻike ʻia ua hoʻonui nui ʻia ka nui o nā mea i hana ʻia. Hōʻike kēia i ka hiki ʻole o nā hoʻāʻo tensile ma muli o ka nui o nā hua paʻa.

Ua aʻo pū ʻia ka hui ʻana o Inconel 718 ma hope o kekahi mau koho wela. Ua hoʻomākaukau ʻia nā mea i hana ʻia e ka hoʻoheheʻe laser koho o ka pauka prealloyed. Ua hoʻohana ʻia kēia ʻano hana no ke kūkulu ʻana i nā specimens Inconel 718 kiʻekiʻe me nā ʻano ʻehā. A laila hoʻonohonoho ʻia nā specimens ma ke ala kūkulu. Ua mālama ʻia nā laʻana me nā ʻano hana maʻamau ʻelua. Ua mālama ʻia ka mālama wela RC ma 1250 degC no hoʻokahi hola a ua hana pū ʻia ka mālama wela RC ma kahi ʻāpana o ka poloka L-PBF.

E pili ana iā RBOSCCO

ʻO RBOSCHCO kahi mea hoʻolako a me ka mea hana kemika honua hilinaʻi me ka ʻoi aku o 12 mau makahiki o ka ʻike i ka hāʻawi ʻana i nā kemika kiʻekiʻe loa a me nā Nanomaterials. Hoʻokuʻu aku ka ʻoihana i nā ʻāina he nui, e like me USA, Kanada, ʻEulopa, UAE, ʻApelika Hema, Tanzania, Kenya, ʻAigupita, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Iapana, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Kelemānia, Palani, Italia, Pokukala etc. Ma ke ʻano he mea hana hoʻomohala nanotechnology alakaʻi, ʻo RBOSCHCO ka mea lanakila ma ka mākeke. Hāʻawi kā mākou hui hana ʻoihana i nā hopena kūpono e kōkua i ka hoʻomaikaʻi ʻana i ka pono o nā ʻoihana like ʻole, hana i ka waiwai, a hoʻoponopono maʻalahi i nā pilikia like ʻole. Inā ʻoe e ʻimi nei i ka pauka inconel 718, e ʻoluʻolu e kelepona mai iā mākou a i ʻole e leka uila i: [email protected]

(Inconel 718 a me kāna mau hoʻohana)