Duplex Ibyuma

Icyuma cya Duplex kitagira ibyuma 2205 (kizwi kandi nka UNS S31803 / S32205, ASTM A240 Ubwoko 2205, Inox 2205, AISI 318LN, SUS 329J3L, cyangwa EN 1.4462) ni ibyiciro bibiri (ferritic-austenitike) bivanze na chromium hafi 22-23%, hafi ya 2.5-23.5% azote. Microstructure iringaniye itanga ihuza ridasanzwe ryimbaraga nyinshi hamwe no kurwanya ruswa nziza. Kurugero, icyiciro cya 2205 mubisanzwe gifite hafi inshuro ebyiri imbaraga zumusaruro wibyuma 316L bitagira umuyonga, bituma abashushanya gukoresha ibice byoroheje, byoroheje badatanze imikorere.

Umuti usanzwe utangwa muburyo bwo gukemura (kuri ASTM A240 / A240M) kugirango ugumane imiterere ya duplex nziza. Icyiciro cya 2205 gikomeje gukomera kubera ubushyuhe bwa kirogenike (hafi –50 ° C) kugeza kuri + 300 ° C; kurenga iyi ntera, gucamo sigma icyiciro gishobora gushingwa muri weld. Iyi mitungo ituma duplex 2205 ihitamo neza kubisabwa nko gutunganya imiti, gutunganya peteroli na gazi yo hanze, hamwe n’ibidukikije byo mu nyanja aho hakenewe imbaraga nyinshi hamwe no kurwanya ruswa ya chloride.