Struct CreviceModel 

pub struct CreviceModel {
    pub gap: f64,
    pub depth: f64,
    pub resistivity: f64,
    pub e_crevice_critical: f64,
    pub i_passive: f64,
}

Crevice corrosion model based on critical geometry criterion.

Crevice attack initiates when the IR drop within the crevice is large enough to shift the local potential below the critical crevice potential.

Fields

gap: f64

Crevice gap width [m].

depth: f64

Crevice depth [m].

resistivity: f64

Electrolyte resistivity [Ω·m].

e_crevice_critical: f64

Critical crevice potential (below which active dissolution occurs) [V].

i_passive: f64

Passive current density [A/m²].

Implementations

impl CreviceModel

pub fn new( gap: f64, depth: f64, resistivity: f64, e_crevice_critical: f64, i_passive: f64, ) -> Self

Create a new crevice model.

pub fn ir_drop(&self) -> f64

IR drop along the crevice [V] using 1-D ohmic model.

ΔV = i_passive · ρ · L² / (2 · g) where L = depth, g = gap, ρ = resistivity.

pub fn critical_depth(&self, e_external: f64) -> Option<f64>

Critical depth [m] at which crevice attack initiates for a given external potential.

L_crit = sqrt(2 · g · ΔV_crit / (i_passive · ρ))

pub fn geometry_factor(&self, e_external: f64) -> f64

Geometry factor x = i_passive · ρ · depth² / (2 · gap · ΔV).

Crevice attack expected when x > 1.

Trait Implementations

impl Clone for CreviceModel

fn clone(&self) -> CreviceModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CreviceModel

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

Formats the value using the given formatter.