Expt. No.

Factor assignment

Wear volume

Microhardness

SN ratios

A

B

C

D

E

F

G

M₁ = 5 mm

M₂ = 10 mm

M₃ = 20 mm

Wear volume

Microhardness

1

1

1

1

1

1

1

1

167

164

171

875

896

921

−44.473

−18.311

2

1

1

2

2

2

2

2

219

221

228

712

719

698

−46.954

−18.952

3

1

1

3

3

3

3

3

279

289

291

568

546

559

−49.139

−18.832

4

1

2

1

1

2

2

3

159

164

167

876

835

868

−44.263

−18.757

5

1

2

2

2

3

3

1

174

176

177

889

876

849

−44.894

−19.145

6

1

2

3

3

1

1

2

189

199

192

756

732

723

−45.728

−19.104

7

1

3

1

2

1

3

2

195

198

197

901

926

893

−45.875

−18.887

8

1

3

2

3

2

1

3

178

181

183

789

801

776

−45.138

−18.933

9

1

3

3

1

3

2

1

168

172

174

792

786

775

−44.678

−18.937

10

2

1

1

3

3

2

2

199

201

206

686

642

613

−46.108

−19.652

11

2

1

2

1

1

3

3

226

221

231

621

632

645

−47.084

−18.427

12

2

1

3

2

2

1

1

215

221

217

757

723

734

−46.756

−18.959

13

2

2

1

2

3

1

3

206

205

203

812

796

772

−46.221

−19.177

14

2

2

2

3

1

2

1

202

206

211

768

706

615

−46.293

−20.53

15

2

2

3

1

2

3

2

213

208

209

681

723

712

−46.445

−18.458

16

2

3

1

3

2

3

1

165

169

167

856

832

841

−44.455

−18.865

17

2

3

2

1

3

1

2

175

176

177

845

827

831

−44.910

−18.867

18

2

3

3

2

1

2

3

213

217

219

706

675

568

−46.703

−20.539