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Table 7 Results obtained considering E corr , I corr and wear

From: Parametric optimization of corrosion and wear of electroless Ni-P-Cu coating using grey relational coefficient coupled with weighted principal component analysis

Principal components

Eigenvalue

Proportion of overall variation

Eigenvector

1st

1.5414

0.514

[0.701, 0.711, 0.051]

2nd

1.0358

0.345

[0.21, −0.138, −0.968]

3rd

0.4227

0.141

[0.681, −0.689, 0.246]