ʻO Incoloy 925 kahi mea paʻakikī paʻakikī e pili ana i ka Fe-Ni-Cr alloy me ka hoʻohui o ka molybdenum, keleawe, titanium a me ka alumini.He kiʻekiʻe ka ikaika o ka alloy a me ke kūpaʻa corrosion maikaʻi loa i ka noi.Ua lawa ka maʻiʻo nickel e pale i ka huila mai ka ʻino a me ka haki ʻana e nā ion chloride.ʻO ka hui pū ʻana o ka nickel, molybdenum a me ke keleawe hoʻi e hāʻawi i ka alloy maikaʻi loa i ke kūpaʻa ʻana i ka hōʻemi ʻana i nā kemika.Kōkua ʻo Molybdenum i ka hoʻomaikaʻi ʻana i ke kūʻē ʻana i ka lua a me ka crevice corrosion.Hāʻawi ka ʻāpana chromium o ka alloy i ka pale ʻana i ka oxidation e kūʻē i ke kaiapuni hoʻemi.Hiki i ka hoʻohui o ka titanium a me ka alumini ke hoʻoikaika i ka alloy i ka wā o ka mālama wela
Alloy | % | Ni | Cr | Fe | Mo | P | C | Mn | Si | S | Cu | Al | Ti |
925 | Min. | 42.0 | 19.5 | kaulike | 2.5 | - | 1.5 | 0.15 | 1.9 | ||||
Max. | 46.0 | 23.5 | 3.5 | 0.03 | 0.03 | 0.1 | 0.5 | 0.01 | 3.0 | 0.5 | 2.4 |
ʻO ka mānoanoa (g/cm3) | Lae hehee (℃ ) |
8.14 | 1343 |
Kūlana | Ka ikaika tensile (MPa) | Ka ikaika hua (MPa) | ʻO ka lōʻihi % |
Paʻa paʻa | 650 | 300 | 30 |
Ua ʻae ʻia ʻo Carpenter Alloy 925 iā NACE MR0175.
NACE MR0175
ʻO ka ikaika mechanical maikaʻi a me ka pale ʻana i ka corrosion.
Loaʻa iā ia ke kūpaʻa corrosion maikaʻi i ka chloride ion stress corrosion, kūloko kūloko a me nā ʻano mea hoʻohaʻahaʻa hoʻohaʻahaʻa oxidizing.
Hoʻohana maʻamau i nā ʻāpana equioment a me nā ʻāpana ʻaila drillinga.e like me nā paipu, nā kiwikā, ka ioint bositioning, ka mea hana ioint packer, i hoʻohana pū ʻia i ka hana ʻana i kekahi mau mea hoʻopaʻa.