Nā hiʻohiʻona o nā mea ʻoki wili
I ka wā e pili ana i nā mea paʻakikī i ka mīkini e like me Hastelloy, waspaloy, Inconel a me Kovar, he mea nui ka ʻike machining a me ka ʻike. I kēia manawa, ʻoi aku ka nui o nā hoʻohana ʻana i nā alloys nickel-based, i hoʻohana nui ʻia e hana i kekahi mau ʻāpana koʻikoʻi i ka aerospace, nā lāʻau lapaʻau a me nā ʻoihana kemika. He ikaika kiʻekiʻe kēia mau mea, kū i ka corrosion, a hiki ke kū i nā wela kiʻekiʻe loa. Hoʻohuiʻia kekahi mau mea kūikawā i nā mea i luna aʻe e loaʻa ai ka hanaʻoi aku. Ma ka ʻaoʻao ʻē aʻe, ua paʻakikī loa kēia mau mea i ka wili.
ʻIke mākou ʻo ka nickel a me ka chromium nā mea hoʻohui nui ʻelua i loko o nā alloys nickel-based. Hiki i ka hoʻohui ʻana i ka nickel ke hoʻonui i ka paʻakikī o ka mea, hiki i ka hoʻohui ʻana i ka chromium ke hoʻomaikaʻi i ka paʻakikī o ka mea, a hiki ke hoʻohana ʻia ke koena o nā mea ʻē aʻe e wānana i ke kapa o ka mea hana. ʻO nā mea'ē aʻe i hoʻohuiʻia i ka mea hiki ke komo: silicon, manganese, molybdenum, tantalum, tungsten, a me nā mea'ē aʻe. akā, ʻo ka hoʻohui ʻana o kēia mau mea i ka mea hana mea paʻakikī i ka wili ʻana, aneane like me ke ʻoki ʻana i kekahi mea hana carbide me kekahi.
No ke aha e ʻoki wikiwiki ai nā mea ʻoki wili i nā mea ʻē aʻe i ka wā e wili ai i nā alloys nickel-based? He mea nui e hoʻomaopopo i kēia. ʻO ka mīkini hana nickel-based alloys, he kiʻekiʻe ke kumukūʻai o ka mea hana, a ʻo ke kumukūʻai he 5 a 10 mau manawa o ka wili kila maʻamau.
ʻAʻole pono e ʻōlelo, ʻo ka wela ka mea nui e pili ana i ke ola o ka mea hana i ka wā e wili ai i nā alloys nickel-based, no ka mea hiki ke hoʻopau ʻia nā mea hana carbide maikaʻi loa e ka wela o ka ʻoki ʻana. ʻAʻole pilikia wale ka hana ʻana o ka ʻoki wela kiʻekiʻe loa no ka wili ʻana i nā alloy nickel. No laila, i ka wā e wili ai i kēia mau alloys, pono e mālama ʻia ka wela. Eia kekahi, he mea nui e ʻike i ka waiwai wela i hana ʻia i ka hana ʻana me nā ʻano mea hana like ʻole (nā mea hana kila kiʻekiʻe, nā mea carbide a i ʻole nā mea hana ceramic).
Ua pili pū kekahi poino mea hana i nā kumu ʻē aʻe, a hiki i nā mea paʻa a me nā mea paʻa paʻa ke hoʻopōkole i ke ola o ka mea hana. Ke lawa ʻole ka ʻoʻoleʻa o ka mea hana i hoʻopaʻa ʻia a hele ka neʻe ʻana i ka wā o ka ʻoki ʻana, hiki paha ke haʻihaʻi i ka matrix carbide cemented. I kekahi manawa, ulu nā māwae liʻiliʻi ma ka ʻoki ʻoki, a i kekahi manawa nahā kahi ʻāpana i ka hoʻokomo carbide, no laila hiki ʻole ke hoʻomau i ka ʻoki ʻana. ʻOiaʻiʻo, hiki ke hana ʻia kēia chipping e ka carbide paʻakikī a i ʻole ka nui o ka ʻoki ʻana. I kēia manawa, pono e noʻonoʻo ʻia nā mea hana kila kiʻekiʻe no ka hoʻomaʻamaʻa ʻana e hōʻemi i ka hiki ʻana o ka chipping. ʻOiaʻiʻo, ʻaʻole hiki i nā mea hana kila kiʻekiʻe ke kū i ka wela kiʻekiʻe e like me ka carbide cemented. Pono e hoʻoholo pono i ka mea e hoʻohana ai i kēlā me kēia hihia.