Kūleʻa wela kila kila

ʻO ke kūpaʻa wela wela e pili ana i kona ʻano kino maikaʻi a me nā ʻano mechanical e hiki ke mālama i ke kila kuhiliʻole i ke kiʻekiʻe wela.

Ka hopena o ke kalapona: ʻO ka carbon kahi hana ikaika o Austenite stainless steel a hoʻopaʻa i ka austenite a hoʻonui i ka ʻāina Austenitic.ʻO ka hiki o ke kalapona ke hana austenitic ma kahi o 30 mau manawa o ka nickel.ʻO ke kalapona kahi mea ʻala.Hiki iā ia ke hoʻomaikaʻi maikaʻi i ka ikaika o ke kila kila Austenite ma o ka hoʻonui ʻana -soluble.Hiki i ke kalapona ke hoʻomaikaʻi i ke kū'ē i ke kū'ē a me ke kū'ē i ka corrosion i loko o ka chloride mānoanoa kiʻekiʻe (e like me 42% mgCl2 paila paila).

Eia nō naʻe, i loko o ka austenitic stainless steel, ʻike pinepine ʻia ke kalapona he mau mea ʻino.ʻO kēia ma muli o kekahi mau kūlana (e like me ka welding a i ʻole ka hoʻomehana ʻana ma o 450 ~ 850 ° C) ma lalo o kekahi mau kūlana i ke kila kila).Hiki i ke kalapona ke like me ke kila a me ke kila ma ke kila.Hoʻokumu ʻo Chromium i kahi pūhui kalapona chromium CR23C6 kiʻekiʻe, e alakaʻi ana i ka ʻilihune o ka chromium kūloko, e hōʻemi ana i ka pale ʻana o ke kila, ʻoi aku ka maikaʻi o ka pale ʻana o ke kūpaʻa aniani.nolaila.Mai ka makahiki 1960, ʻo ka chromium -nickel Austeenian stainless steel i hoʻomohala hou ʻia he ʻano kalapona ka nui ma lalo o 0.03% a i ʻole 0.02% ultra-low -carbon type.Hiki iā ʻoe ke ʻike i ka emi ʻana o ka maʻi kalapona, ua hoʻemi ʻia ka naʻau o ka corrosion kristal o ke kila.Loaʻa iā 0.02% nā hopena ʻike maopopo loa.Ua hōʻike pū kekahi mau hoʻokolohua hiki i ke kalapona ke hoʻonui i ka manaʻo o nā kiko corrosion o chromium Aozoi kila kila.Ma muli o ka hopena maikaʻi ʻole o ke kalapona, ʻaʻole pono e hoʻomalu ʻia ka ʻike kalapona e like me ka haʻahaʻa e like me ka hiki i ke kaʻina hana o ka hoʻoheheʻe ʻana i ka austenite stainless steel, akā i ke kaʻina hana o ka wela ma hope, ka hana anu a me ka mālama wela, akā no ka pale ʻana i ka ʻili o ke kila kila e hoʻonui i ka ʻili kalapona a pale i nā carbide chromium e pale i nā chromium carbide Koho ʻia.