Yintoni umahluko phakathi kwe-17-4PH kunye nezinye iintsimbi ze-Precipitation-Hardening (PH)?

Yintoni umahluko phakathi kwe-17-4PH kunye nezinye iintsimbi ze-Precipitation-Hardening (PH)?

Intshayelelo

Iintsimbi ezingenasici eziqinisa imvula (iintsimbi ze-PH) ziluhlobo lwee-alloys ezimelana nokugqwala ezidibanisa amandla eentsimbi ze-martensitic neze-austenitic kunye nokumelana nokugqwala okugqwesileyo. Phakathi kwazo,Intsimbi engagqwaliyo eyi-17-4PHMhlawumbi yeyona isetyenziswa kakhulu ngenxa yeempawu zayo ezibalaseleyo zoomatshini kunye nokulula kokwenziwa. Kodwa ithelekiswa njani nezinye iiklasi ze-PH ezifana ne-15-5PH, 13-8Mo, 17-7PH, kunye ne-Custom 465? Eli nqaku lingena nzulu kumahluko ekubunjweni, unyango lobushushu, iimpawu zoomatshini, ukumelana nokugqwala, kunye nokusetyenziswa.

Isishwankathelo seeNsimbi eziNcinci eziQondisa iNkunkuma

Iintsimbi eziqinisa imvula zifumana amandla azo ngokwenziwa kweeprecipitates ezincinci kwi-matrix yentsimbi ngexesha lonyango lobushushu oludala. Ezi ntsimbi zahlulwe zibe ziindidi ezintathu eziphambili:

1. Iintsimbi ze-Martensitic PH(umz.,17-4PH, 15-5PH)
2. Iintsimbi ze-PH ezithambileyo(umz., 17-7PH)
3. Iintsimbi ze-Austenitic PH(umz., A286)

Udidi ngalunye lubonelela ngomxube owahlukileyo wezakhiwo ezenzelwe iimfuno ezithile zoshishino.

17-4PH (UNS S17400): Umgangatho woShishino

Ukwakhiwa:

• I-Cr: 15.0–17.5%
• I-Ni: 3.0–5.0%
• I-Cu: 3.0–5.0%
• I-Nb (Cb): 0.15–0.45%

Unyango lobushushu: Isisombululo sinyangiwe kwaye sigugile (ngesiqhelo si-H900 ukuya kwi-H1150-M)

Iipropati zoomatshini (H900):

• Amandla okuThamba: 1310 MPa
• Amandla okuvelisa: 1170 MPa
• Ukwandiswa: 10%
• Ubunzima: ~44 HRC

Iingenelo:

• Amandla aphezulu
• Ukumelana nokugqwala okuphakathi
• Ukusebenza kakuhle koomatshini
• Iyanyibilika

Izicelo:

• Izixhobo zeenqwelo-moya
• Iireactor zenyukliya
• Iivalvu, imiphini, izibophelelo

Ukuthelekiswa nezinye iintsimbi ze-PH ezingatyiwayo

15-5PH (UNS S15500)

Ukwakhiwa:

• Ifana ne-17-4PH, kodwa inolawulo oluqinileyo kwizinto ezingcolileyo
• I-Cr: 14.0–15.5%
• I-Ni: 3.5–5.5%
• I-Cu: 2.5–4.5%

Umahluko oPhambili:

• Ukuqina okungcono okunqamlezileyo ngenxa yesakhiwo esincinci esincinci
• Iipropati zoomatshini eziphuculweyo kwiindawo ezityebileyo

Iimeko zokusetyenziswa:

• Izinto zokuthunga zeenqwelo-moya
• Izixhobo zokucubungula iikhemikhali

13-8Mo (UNS S13800)

Ukwakhiwa:

• I-Cr: 12.25–13.25%
• I-Ni: 7.5–8.5%
• Unyaka: 2.0–2.5%

Umahluko oPhambili:

• Ukuqina okuphezulu kunye nokumelana nokugqwala
• Amandla aphezulu kwiindawo ezinqamlezileyo ezityebileyo
• Ulawulo oluqinileyo lokwakheka kokusetyenziswa kweenqwelo moya

Iimeko zokusetyenziswa:

• Izixhobo zeenqwelo-moya ezakhiweyo
• Imithombo yemithombo esebenza kakuhle

17-7PH (UNS S17700)

Ukwakhiwa:

• I-Cr: 16.0–18.0%
• I-Ni: 6.5–7.75%
• I-Al: 0.75–1.50%

Umahluko oPhambili:

• I-semi-austenitic; ifuna umsebenzi obandayo kunye nonyango lobushushu
• Ukwakheka ngcono kodwa ukumelana nokugqwala okuphantsi kune-17-4PH

Iimeko zokusetyenziswa:

• Iidiaphragm zeenqwelo-moya
• IiBellows
• Imithombo

I-Custom 465 (UNS S46500)

Ukwakhiwa:

• I-Cr: 11.0–13.0%
• I-Ni: 10.75–11.25%
• Isiqingatha: 1.5–2.0%
• Unyaka: 0.75–1.25%

Umahluko oPhambili:

• Amandla aphezulu kakhulu (ukuya kuthi ga kwi-200 ksi tensile)
• Ukuqina okugqwesileyo kokuqhekeka
• Ixabiso eliphezulu

Iimeko zokusetyenziswa:

• Izixhobo zotyando
• Izinto zokubopha iinqwelomoya
• Izixhobo zezixhobo zokufika

Uthelekiso lweNyango yoBushushu

Uthelekiso lokumelana nokugqwala

• Eyona ilungileyo:13-8Mo kunye ne-Custom 465
• Kulungile:17-4PH kunye ne-15-5PH
• Ubulungisa:17-7PH

Qaphela: Akukho nanye ehambelana nokumelana nokugqwala kweeklasi ze-austenitic ezipheleleyo ezifana ne-316L.

Ukukwazi ukusebenza kunye nokudityaniswa

Ukuqwalaselwa kweendleko

• Eyona ingabizi kakhulu:17-4PH
• Amabanga ePremium:13-8Mo kunye ne-Custom 465
• Ilungeleleneyo:15-5PH

Uthelekiso lwezicelo

Isishwankathelo

Isiphelo

Nangona i-17-4PH isaqhubeka nokuba yintsimbi engenasici ye-PH esetyenziswa kakhulu kwiinjongo ezininzi, uhlobo ngalunye lwe-PH oluhlukileyo luneengenelo ezahlukeneyo ezenza ukuba ifaneleke ngakumbi kwiimfuno ezithile. Ukuqonda umahluko phakathi kwezi alloys kwenza iinjineli zezinto kunye nabathengi bakwazi ukwenza izigqibo ezisekelwe kumandla, ukuqina, ukumelana nokugqwala, kunye neendleko.