321 Bakin Karfe
321 titanium -tsayayyen bakin karfe austenitic, wanda aka keɓe ƙarƙashin UNS S32100. Abubuwan da ke cikin sa sun haɗa da 17.0-19.0% Cr, 9.0-12.0% Ni, da 0.15% ƙaramar titanium-ƙara don ɗaure carbon, hana hazo carbide.
Wannan kwanciyar hankali yana kawar da lalata tsakanin granular bayan fallasa zuwa digiri 425{2}}815 (digiri 800-1500 F), babban fa'ida akan maki mara daidaito. Yana ba da kyakkyawan juriya na iskar shaka har zuwa digiri 870 kuma yana kiyaye ƙarfi a yanayin zafi mai tsayi.
Haɗin Sinadari
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
|
|
Min |
- |
- |
- |
- |
- |
17 |
9 |
|
Max |
0.08 |
1 |
2 |
0.045 |
0.03 |
19 |
12 |
Kayayyakin Kayayyaki
|
Yawan yawa |
Matsayin narkewa |
Mafi ƙarancin kayan aikin injina a zafin daki |
||
|
Ƙarfin Ƙarfin Ƙarfi |
Ƙarfin Haɓaka |
Tsawaitawa |
||
|
g/cm3 |
digiri |
Rm N/mm2 |
Rp0.2N/mm2 |
A5% |
|
7.92 |
1400~1450 |
520 |
205 |
40% |
Siffar
321 bakin karfe titanium -tsayayyen darajar austenitic wanda ya ginu akan bakin karfe 304 ta hanyar ƙara 0.3%{8}}0.7% titanium, yana haɓaka juriya ga lalatawar intergranular. Titanium ya fi dacewa yana haɗawa da carbon don samar da titanium carbide, yadda ya kamata yana hana hazo chromium carbide a cikin kewayon zafin hankali (425-860 digiri). Wannan yana sa ya dace musamman don abubuwan da aka welded da aikace-aikacen zafin jiki mai girma{13} (matsakaicin zafin sabis: digiri 900), inda yake nuna kyakkyawan aiki a cikin watsa shirye-shiryen acid, kodayake juriya ga lalatawar damuwa na chloride ya kasance iyakance. Kayan yana kiyaye iya aiki iri ɗaya da walƙiya zuwa 304 (yana buƙatar titanium{14}}wanda ke ɗauke da karafa mai filler), kuma ba mai maganadisu bane a cikin yanayin warwarewar bayani.
Aikace-aikace
Manyan Abubuwan Zazzabi{{0}:Bututun injin jirgin sama, masu musayar zafi ({0}} dogon lokacin amfani da ƙasa da digiri 800).
Kayayyakin Sinadarai:Ƙarfin acid{0}kwantena masu juriya, bututun welded ( element na titanium yana hana hazo chromium carbide).
Masana'antar Motoci:Gidajen Turbocharger, sassan tsarin shaye-shaye.
Bangaren Makamashi:Wuraren konewar tukunyar jirgi, matsananciyar zafi{0}.
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Aika Aikace-aikacen
