ʻO Haynes 230 (UNS N06230) - Nickel-Chromium-Tungsten-Molybdenum Alloy no ka lawelawe wela kiʻekiʻe loa

Ka ikaika kiʻekiʻe o ka mahana a me ke kūpaʻa wela– ʻO Haynes 230 kahi mea i hoʻoikaika ʻia i ka hopena paʻa e hoʻohui i ka ikaika wela kiʻekiʻe maikaʻi loa me ka hiki ke hana ʻia ma ka mahana o ka lumi. He kūpono loa ka hui ʻana no nā noi lōʻihi loa ma nā mahana o 1200°F (650°C) a ʻoi aku paha. ʻO ka hui kūikawā o ka tungsten (13-15%) a me ka molybdenum (1-3%) no ka hoʻoikaika ʻana i ka hopena paʻa, me ke kalapona i kāohi ʻia (0.05-0.15%) a me ka chromium (20-24%) no ka hoʻoikaika ʻana i ka carbide, hāʻawi i ka ikaika wela kiʻekiʻe. Hōʻike ka hui ʻana i ke kūʻē ʻana i ka coarsening grain me ka hoʻolōʻihi ʻana i nā mahana kiʻekiʻe, e mālama ana i kona mau waiwai mechanical ma luna o nā wā lawelawe lōʻihi.

Ke kū'ē'ē'ana i ka'okikene kiʻekiʻe– Hāʻawi ʻo Haynes 230 i ke kūpaʻa koʻikoʻi i nā wahi oxidizing a hiki i 2100°F (1149°C) no nā hōʻike lōʻihi. ʻO ka nui o ka chromium (20-24%) e hana i kahi unahi oxide pale Cr₂O₃ paʻa a paʻa. ʻO ka hoʻohui ʻana o ka lanthanum (0.005-0.05%) e hoʻonui i ka hoʻopili ʻana o ka unahi oxide, e pale ana i ka spalling i ka wā o ka thermal cycling. Hāʻawi kēia i ka hana maikaʻi loa i nā kūlana thermal cyclic kahi e hāʻule ai nā alloys ʻē aʻe e ka scale spallation.

Ke kū'ē nui ʻana i nā wahi Nitriding– Hōʻike ka hui i ke kūpaʻa koʻikoʻi i nā kaiapuni nitriding, e kūpono ana no nā kākoʻo grid catalyst burner ammonia a me nā noi ʻē aʻe kahi e hoʻoulu ai ka nitriding i ka hōʻino wikiwiki ʻana o nā hui liʻiliʻi.

Kūlana Paʻa Loa Loa– ʻAʻole e like me nā mea hoʻohuihui wela kiʻekiʻe he nui e hoʻohaʻahaʻa ʻia ma o ka pae sigma a i ʻole nā ​​​​​​mea hoʻoheheʻe ʻē aʻe, mālama ʻo Haynes 230 i kona ductility a me ka paʻakikī ma o ka hoʻolōʻihi ʻana i ka mahana kiʻekiʻe. Hōʻoia kēia i ke ola lawelawe hilinaʻi i ana ʻia i nā makahiki ma mua o nā mahina.

Hoʻonui Haʻahaʻa i ka Mahana– Hōʻike ka hui hao i nā ʻano hoʻonui wela haʻahaʻa ma mua o ka hapa nui o nā hui hao wela kiʻekiʻe, e hōʻemi ana i ke kaumaha wela a me ka luhi i nā ʻāpana i kau ʻia i ka pōʻaiapuni wela. He mea pono loa kēia i nā ʻāpana turbine kinoea aerospace a me nā noi umu ʻoihana.

ʻO ka hana ʻana a me ka hiki ke hoʻopili ʻia maikaʻi loa– Loaʻa iā Haynes 230 nā ʻano hana hoʻokumu a me ka hoʻopili ʻana maikaʻi loa. Hiki ke hoʻopili ʻia a hana wela ʻia paha, inā paʻa ia ma 2150°F (1177°C) no ka manawa kūpono. Hoʻopili maʻalahi ʻia ka mea hoʻohuihui e ka hana anu ma muli o kona ductility maikaʻi. Hiki ke hoʻopili ʻia e nā ʻano hana like ʻole, me ke kinoea tungsten arc (GTAW), ke kinoea metala arc (GMAW), ka hoʻopili ʻana i ke kūʻē ʻana, a me ka hoʻopili ʻana i ke metala pale (SMAW).

Ka Uhi ʻana o ke Code Moku ASME– Ua uhi ʻia ʻo Haynes 230 e ka hihia ASME Vessel Code No. 2063 no ka Māhele I a me ka Māhele VIII, e ʻae ana i kona hoʻohana ʻia ʻana i nā noi ipu kaomi ma lalo o ke ASME Boiler and Pressure Vessel Code.

Ola lawelawe i hoʻolōʻihi ʻia– Hiki i ke kinikini ke ola ma mua o nā kila kila a me nā kinikini nickel a hiki i ka 100 a 1 ma muli o ka mahana. ʻOkoʻa, ʻo ka ikaika kiʻekiʻe o ka kinikini 230 e ʻae ai i ka hoʻohana ʻana i nā mānoanoa ʻāpana hoʻolālā a hiki i ka 75 pakeneka ka lahilahi ma mua o nā kinikini liʻiliʻi me ka ʻole o ka pohō i ka hiki ke lawe ukana.