A2-60, A2-70, A2-80 Nā kaola poepoe kila kila Austenitic a me ka kaola hexagonal

A2-60, A2-70, A2-80 Nā kaola poepoe kila kila Austenitic a me ka kaola hexagonal

Hōʻike ʻo A1, A2, A4 i 302, 304, 316; Hōʻike ʻo 45, 50, 60, 70, 80 i ka 1/10 o ka ikaika tensile liʻiliʻi o nā mea paʻa. He kila kila austenitic ʻo A4, i hoʻomohala ʻia no ka hoʻolapalapa ʻana i ka waikawa sulfuric, No laila, ʻo ka inoa he kila kūpaʻa waikawa, nona ke kila kūpaʻa waikawa metastable, ma ka inoa ʻo SUS316.
Hōʻike ʻo A i ka "austenite", hōʻike ʻo 2 i ka lua o ka mea (ʻo ka ʻoiaʻiʻo, pili ʻo 2 i 304), a hōʻike ʻo -70 i ka pae ikaika he 700 MPa. ʻO nā mea maʻamau ʻo A2 a me A4, ʻo ia hoʻi he 304 a me 316, akā inā hiki ke hōʻoia ʻia ka hana o nā mechanics, hiki ke komo a puka mai ka haku mele kemika. ʻO nā māka maʻamau:
A2-60
A2-70
A2-80
A4-70
A4-80
A4-90
Hōʻike ʻo A1, A2, A4 i 302, 304, 316; Hōʻike ʻo 45, 50, 60, 70, 80 i ka 1/10 o ka ikaika tensile liʻiliʻi loa o ka mea hoʻopaʻa.
He kila kila austenitic ka A4 i hoʻomohala ʻia no ka hoʻolapalapa ʻana i ka waikawa sulfuric. No laila, ua kapa ʻia ke kila kūpaʻa waikawa he kila kūpaʻa waikawa metastable, ʻo SUS316 maʻamau. ʻO ka 70 a me ka 80 ma hope o ka A4-70 a me A4-80 e hōʻike ana i ka 1/10 o ka ikaika tensile liʻiliʻi o ka mea hoʻopaʻa. ʻAʻole ʻokoʻa ʻo A4-70 a me A4-80 mai ka mea ponoʻī. ʻOiai lākoupā kila kila austenitic, ʻaʻole hiki ke mālama ʻia lākou e ka mālama wela. ʻO ke ʻano e hoʻomaikaʻi ai i ka ikaika tensile, ʻo ka hoʻonui ʻana i ka ikaika tensile ma o ka deformation o ka dislocation barrier (i ʻike nui ʻia ʻo ka paʻakikī anuanu), ʻoi aku ka maʻalahi o nā bolts A4-70 ma ka mākeke ma mua o ke kaʻapuni ʻana, ʻo A4-80 kakaikahi.