Jinsi ya kukokotoa Corrosion Rate
Corrosion Rate ni nini?
Corrosion rate quantifies material degradation: measured in mm/year or mils/year; depends on environment and material.
Mwongozo wa Hatua kwa Hatua
- 1Input material, environment, exposure time
- 2Calculate mass loss or penetration depth
- 3Estimate service life
Mifano Iliyotatuliwa
Ingizo
Mild steel in seawater: ~0.3-0.5 mm/year
Matokeo
After 10 years: 3-5 mm penetration
Significant engineering concern
Makosa ya Kawaida ya Kuepuka
- ✕Assuming uniform corrosion (pitting can be 10× faster)
- ✕Neglecting galvanic corrosion between dissimilar metals
Maswali yanayoulizwa mara kwa mara
How do alloys reduce corrosion?
Chromium forms passive oxide layer; stainless steel >12% Cr dramatically reduces corrosion.
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