17-4PH ITANGAZO RIKURIKIRA

Alloy 17-4 ni imvura ya chromium-umuringa ikomera ibyuma bitagira umwanda bikoreshwa mubisabwa bisaba imbaraga nyinshi kandi urwego ruciriritse rwo kurwanya ruswa. Nimwe mumyanya ikoreshwa cyane yimvura igabanya amanota, kuko ifite imbaraga nyinshi zingana na 572 ° F mugihe zigaragaza imbaraga zo kurwanya ruswa mubihe byose bivura ubushyuhe. Alloy 17-4 ifite imbaraga zihagije zo kwangirika kwikirere cyangwa mumyunyu ya acide ivanze aho irwanya ruswa ihwanye na Alloy 304 cyangwa 430. Alloy 17-4 irashobora gushyukwa nubushyuhe butandukanye kugirango iteze imbere ibintu byinshi. Imiterere yubukanishi irashobora gutezimbere hamwe no kuvura ubushyuhe aho imbaraga nyinshi zitanga umusaruro zigera kuri 180 ksi zishobora kugerwaho. Amavuta 17-4 ntagomba gukoreshwa mubushyuhe buri hejuru ya 572 ° F cyangwa mubushyuhe buke cyane.

17-4 Icyuma
Iyi mvura ya martensitike ikomera ibyuma bidafite ingese bifite uruvange rwimbaraga nimbaraga nyuma yo kuvura ubushyuhe bukwiye. Ifite kandi ruswa kandi irwanya ubushyuhe bwo mu cyiciro cya 304. Amagambo abiri "Ubwoko 630" na "17-4PH" yerekeza ku cyiciro kimwe.

Ibigize:

• Carbone: 0.07 max
• Manganese: 1.00 max
• Fosifore: 0.040 max
• Amazi meza: 0.030 max
• Silicon: 1.00 max
• Chromium: 15.00 - 17.50
• Nickel: 3.00 - 5.00
• Umuringa: 3.00 - 5.00
• Icyuma: Kuringaniza

Ibyiza bifatika:

• Ingingo yo gushonga: 2560 - 2625 ° F (1404 - 1440 ° C)
• Ubucucike: ibiro 0.282 / in3 / 7.8 g / cm3
• Modulus ya Elastique mubibazo: 28.5 X 106 psi / 197 GPa

Ibikoresho bya mashini:

• Imiterere: Igisubizo cyakemuwe (A)
• Imbaraga za Tensile Ntarengwa (psi): 160.000
• Imbaraga Zitanga Ntarengwa 0.2% offset (psi): 145.000
• Kurambura muri 2 ”Bisanzwe: 5%
• Gukomera: Rockwell B85

• Imiterere: Gukomera + Gusaza (TH1050)
• Imbaraga za Tensile Zisanzwe (psi): 200.000
• Imbaraga Zitanga Ubusanzwe 2% offset (psi): 185.000
• Kurambura muri 2 ": 8%
• Gukomera: Rockwell C35

• Imiterere: Umusaza (H1075)
• Imbaraga za Tensile Zisanzwe (psi): 175.000
• Imbaraga Zitanga Ubusanzwe 2% offset (psi): 165.000
• Kurambura muri 2 ": 8%
• Gukomera: Rockwell C37

• Imiterere: Umusaza (H900)
• Imbaraga za Tensile Zisanzwe (psi): 210.000
• Imbaraga Zitanga Ubusanzwe 2% offset (psi): 200.000
• Kurambura muri 2 ": 7%
• Gukomera: Rockwell C45