Struct PassivationModel 

pub struct PassivationModel {
    pub flade_potential: f64,
    pub i_passivation: f64,
    pub i_passive: f64,
    pub e_transpassive: f64,
    pub active_bv: ButlerVolmer,
}

Passivation model for active–passive metals.

Describes the three regimes on the anodic polarisation curve: active dissolution → active-passive transition → passive plateau → transpassive.

Fields

flade_potential: f64

Flade potential (active/passive boundary) [V vs SHE].

i_passivation: f64

Passivation current density (peak active) [A/m²].

i_passive: f64

Passive current density (maintained in passive regime) [A/m²].

e_transpassive: f64

Transpassive potential (onset of transpassive dissolution) [V vs SHE].

active_bv: ButlerVolmer

Butler-Volmer parameters for the active regime.

Implementations

impl PassivationModel

pub fn new( flade_potential: f64, i_passivation: f64, i_passive: f64, e_transpassive: f64, active_bv: ButlerVolmer, ) -> Self

Create a new passivation model.

pub fn current_density(&self, e: f64) -> f64

Anodic current density [A/m²] at potential e [V vs SHE].

Regime selection:

• e < Flade potential → active Butler-Volmer dissolution
• Flade ≤ e < transpassive → passive plateau (i_passive)
• e ≥ transpassive → transpassive (linear rise above passive)

pub fn is_passive(&self, e: f64) -> bool

Check whether the metal is in the passive state at potential e.

pub fn passive_range(&self) -> f64

Passive range width [V].

Trait Implementations

impl Clone for PassivationModel

fn clone(&self) -> PassivationModel

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PassivationModel

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.