Gr16 Ti-0.05Pd Titanium Bar

 

Gr16 titanium bar (ASTM Qib 16, sib haum rau UNS R52402) yog ib qho - hom titanium alloy uas muaj cov lej ntawm palladium (Pd). Nws yog tsim los ntawm kev ntxiv cov ntsiab lus tsawg heev ntawm palladium (0.04% -0.08%) rau kev lag luam ntshiab titanium (CP Ti) kom ua tau zoo corrosion kuj zoo ib yam li high-palladium titanium alloys (xws li Gr7) ntawm tus nqi qis.

 

 

1. Core txhais thiab xwm txheej

Lus Txhais: Gr16 yog qib nyob rau hauv American ASTM tus qauv, muaj nyob rau qis -palladium titanium alloys.

Txoj hauj lwm: Nws yog "corrosion{0}}resistant enhanced version" ntawm **Gr2 (kev lag luam ntshiab titanium)**, thiab kuj yog ib qho "kev lag luam lwm txoj kev" rau Gr7 (0.12-0.25% Pd).

2. Cov yam ntxwv ntawm cov tshuaj lom neeg

Cov tshuaj muaj pes tsawg leeg ntawm Gr16 zoo ib yam li Gr2, qhov sib txawv tsuas yog qhov sib ntxiv ntawm **palladium (Pd)**.

Matrix: Titanium (Ti) sib npaug.

Cov khoom siv alloy: Palladium (Pd): 0.04% - 0.08%.

Function: Qhov no yog qhov zoo kawg nkaus "cov nyhuv tshwj xeeb." Txawm tias nyob rau hauv tsis tshua muaj siab concentrations, nws muaj peev xwm txo tau qhov corrosion kuj ntawm titanium nyob rau hauv txo cov acid ib puag ncig, txhawb tus kheej - kho cov nto oxide zaj duab xis, thiab yog li zoo heev txhim khu kev tiv thaiv rau crevice corrosion thiab pitting corrosion.

Impurity Control: Zoo ib yam li Gr2, muaj kev txwv nruj ntawm cov pa oxygen, hlau, carbon, nitrogen, thiab hydrogen kom nws cov yas zoo thiab tawv.

 

 

• Titanium (Ti): Sib npaug; Base hlau
• Pd: 0.04-0.08 Core corrosion-cov khoom tiv thaiv, txhawb nqa cov zaj duab xis passivation tus kheej kho, thiab txhim khu kev tiv thaiv kom txo cov kua qaub.
• Hlau (Fe): Tsawg dua los yog sib npaug rau 0.30 impurity caij, tswj cov ntsiab lus los tiv thaiv kom tsis txhob muaj plasticity.
• Oxygen (O): Tsawg dua los yog sib npaug rau 0.25 Cov khoom sib xyaw ua ke, cov khoom me me txhim kho lub zog, cov nyiaj ntau dhau cuam tshuam rau plasticity.
• Cov pa roj carbon (C): Tsawg dua los yog sib npaug rau 0.08 impurity caij, tswj cov ntsiab lus kom tiv thaiv kom tsis txhob muaj zog ntxiv.
• Nitrogen (N): Tsawg dua los yog sib npaug rau 0.03 impurity caij, nruj me ntsis tswj kom tsis txhob muaj plasticity tsawg.
• Hydrogen (H): Tsawg dua lossis sib npaug ntawm 0.015 Kev tswj nruj nruj kom tiv thaiv hydrogen embrittlement.
• Lwm cov ntsiab lus (ib zaug): Tsawg dua lossis sib npaug rau 0.10 Tag nrho impurity tswj.
• Lwm cov ntsiab lus (tag nrho): Tsawg dua lossis sib npaug rau 0.40 Tag Nrho impurity tswj.

 

 

Mechanical zog: raws li ASTM B348, annealed mob, chav tsev kub

• Tensile Strength (UTS) MPa: Ntau dua lossis sib npaug rau 345 370-400 Piv rau GR2/GR7
• Yield Strength (Rp0.2) MPa: Ntau dua lossis sib npaug rau 275 300-340 Plasticity haum rau molding
• Elongation (δ) % Ntau dua lossis sib npaug ntawm 20: 22-25 Zoo plasticity, yooj yim rau kev ua haujlwm txias
• Txo ntawm Cheeb Tsam (Z) %: Ntau dua lossis sib npaug rau 30 32-35 Zoo sib xws nrog molding thiab vuam
• Burlnell Hardness (HB): Tsawg dua lossis sib npaug li 280 Kwv yees li 150-180 Nruab nrab hardness, zoo machinability

 

 

Cov yam ntxwv ntawm kev ua tau zoo:

Corrosion Resistance: Lub xub ntiag ntawm Pd ua rau nws cov corrosion kuj hauv kev txo cov kua qaub xws li hydrochloric acid thiab sulfuric acid, nrog rau cov tshuaj chlorine - muaj cov xov xwm, deb tshaj li cov ntshiab ntshiab titanium (xws li GR2). Nws muaj qhov ua tau zoo heev rau pitting thiab crevice corrosion.

Mechanical Properties: Lub zog piv rau GR2 / GR7, zoo plasticity, zoo heev txias ua hauj lwm thiab vuam zog, thiab weld corrosion kuj txuam nrog cov khoom siv hauv paus.

Daim ntaub ntawv: Corrosion-cov khoom tiv thaiv hauv kev txo cov kua qaub thiab siab -kub tshuaj chlorine- muaj cov xov xwm, xws li cov khoom siv hluav taws xob, cov kav dej, thiab cov thawv ntim khoom, siv hauv kev lag luam tshuaj, tshuaj, thiab kev lag luam marine engineering.

 

 

Core kom zoo dua ---- Corrosion kuj

Nws nthuav tawm qhov ua tau zoo dua qub piv rau cov ntshiab titanium (Gr1 / Gr2 / Gr3) hauv cov cheeb tsam hauv qab no:
Txo cov kua qaub: Gr16 tseem nyob ruaj khov hauv dilute hydrochloric acid, dilute sulfuric acid, thiab phosphoric acid, thaum cov ntshiab titanium corrodes hnyav heev.
Cov tshuaj chlorine- muaj ib puag ncig: Nws ua rau pom muaj zog heev tiv thaiv kev xeb hauv cov dej hiav txwv, brine, thiab cov tshuaj chloride.

Kev sib piv nrog Gr7: Gr16 qhov kev tiv thaiv corrosion yog me ntsis qis dua Gr7 (siab palladium), tab sis nyob rau hauv feem ntau tsis yog - ib puag ncig hnyav heev, Gr16 ua tau zoo heev thiab muaj txiaj ntsig zoo dua rau cov nyiaj.

 

 

Gr16 titanium rods feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau muaj kev tiv thaiv corrosion, tab sis tsis muaj zog txaus:

• Chemical thiab Petrochemical Industries: Kev tsim cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov kav dej.
• Hydrometallurgy: Electrode thiab piping rau electrolytic hlwb siv hauv kev rho tawm cov hlau xws li npib tsib xee thiab cobalt.
• Kev lag luam kws tshuaj: Vim muaj txiaj ntsig catalytic nyhuv ntawm palladium nyob rau hauv cov synthesis ntawm tej yam tshuaj, thiab nws cov purity siab, nws yog feem ntau siv nyob rau hauv cov khoom siv tshuaj.
• Marine Engineering: Seawater desalination khoom thiab nkoj piping systems.
• Cov ntawv thov tshwj xeeb: Hauv tus nqi- qhov chaw nyob hauv marine lossis acidic ib puag ncig uas tsis tuaj yeem siv cov titanium ntshiab.

 

 

** Zoo dua Gr2: Lub neej ntev dua thiab txo tus nqi tu hauv cov tshuaj chlorine -muaj thiab acidic ib puag ncig.

** pheej yig dua Gr7: Palladium cov ntsiab lus tsuas yog ib nrab ntawm Gr7, txo cov nqi raw khoom.

** Yooj yim rau txheej txheem dua Gr5: Yooj yim rau cov duab thiab vuam dua li TC4, ua rau cov nqi qis dua.

 

 

 

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