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Table 5 Results of grey analysis

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

Experiment number

Normalized value

Δ value

Grey coefficient

E corr

I corr

Wear

E corr

I corr

Wear

E corr

I corr

Wear

1

0.67010

0.99454

0.30323

0.32990

0.00546

0.69677

0.60248

0.98920

0.41779

2

0.99532

0.93292

0.00000

0.00468

0.06708

1.00000

0.99074

0.88171

0.33333

3

0.62719

0.53598

0.59771

0.37281

0.46402

0.40229

0.57286

0.51866

0.55415

4

1.00000

1.00000

0.64136

0.00000

0.00000

0.35864

1.00000

1.00000

0.58231

5

0.80205

0.94456

0.88526

0.19795

0.05544

0.11474

0.71639

0.90019

0.81335

6

0.20197

0.12718

0.53929

0.79803

0.87282

0.46071

0.38520

0.36421

0.52045

7

0.45186

0.90067

0.24496

0.54814

0.09933

0.75504

0.47703

0.83426

0.39839

8

0.93331

0.94014

0.42239

0.06669

0.05986

0.57761

0.88231

0.89308

0.46399

9

0.49731

0.88422

0.68487

0.50269

0.11578

0.31513

0.49866

0.81198

0.61340

10

0.04797

0.82944

0.66924

0.95203

0.17056

0.33076

0.34434

0.74564

0.60186

11

0.45059

0.91159

0.51475

0.54941

0.08841

0.48525

0.47646

0.84975

0.50748

12

0.11779

0.56613

0.33784

0.88221

0.43387

0.66216

0.36174

0.53540

0.43023

13

0.68993

0.75375

0.47323

0.31007

0.24625

0.52677

0.61723

0.67001

0.48696

14

0.42794

0.92743

1.00000

0.57206

0.07257

0.00000

0.46639

0.87326

1.00000

15

0.38749

0.48622

0.33873

0.61251

0.51378

0.66127

0.44943

0.49320

0.43056

16

0.45297

0.98700

0.02652

0.54703

0.01300

0.97348

0.47754

0.97467

0.33933

17

0.19838

0.74086

0.04850

0.80162

0.25914

0.95150

0.38414

0.65864

0.34447

18

0.37908

0.49917

0.48712

0.62092

0.50083

0.51288

0.44606

0.49959

0.49364

19

0.06869

0.49816

0.60544

0.93131

0.50184

0.39456

0.34933

0.49908

0.55893

20

0.00000

0.62122

0.99743

1.00000

0.37878

0.00257

0.33333

0.56897

0.99490

21

0.44486

0.17952

0.05149

0.55514

0.82048

0.94851

0.47387

0.37865

0.34518

22

0.11404

0.61936

0.32570

0.88596

0.38064

0.67430

0.36076

0.56777

0.42579

23

0.31534

0.00000

0.36487

0.68466

1.00000

0.63513

0.42206

0.33333

0.44048

24

0.10409

0.93426

0.50457

0.89591

0.06574

0.49543

0.35819

0.88380

0.50229

25

0.21224

0.47635

0.39813

0.78776

0.52365

0.60187

0.38827

0.48845

0.45377

26

0.36468

0.19566

0.52374

0.63532

0.80434

0.47626

0.44040

0.38334

0.51216

27

0.29855

0.77647

0.64940

0.70145

0.22353

0.35060

0.41617

0.69105

0.58782