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1.Vincentius yobi 
2.Anggih Andreas T 
3.Yudi Novianto 
4.Ardian Novariandar 
5.Eko Priyanto 
6.Bondan Prakoso
Sebelum Heat Treatment 
Titik ke 
D1 
D2 
D rata-rata 
Kekerasan (VHN) 
1 
0,48 
0,48 
0,485 
236,45 
2 
0,49 
0,48 
0,485 
236,45 
3 
0,52 
0,51 
0,515 
209,71 
Setelah Heat Treatment 
Jarak dari ujung (mm) 
D1 
D2 
D rata-rata 
Kekerasan (VHN) 
1 
0,43 
0,43 
0,43 
300,81 
3 
0,45 
0,45 
0,45 
274,67 
5 
0,45 
0,45 
0,45 
274,67 
10 
0,47 
0,46 
0,465 
257,23 
15 
0,49 
0,48 
0,485 
236,45 
25 
0,5 
0,51 
0,505 
218,09 
35 
0,54 
0,54 
0,54 
190,74 
55 
0,54 
0,56 
0,55 
183,87 
75 
0,56 
0,57 
0,565 
174,23 
100 
0,57 
0,57 
0,57 
171,19
1 
2 
3
perlit 
ferit
perlit 
ferit
perlitferit
ferite 
perlit

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Jomini Testing

  • 1. 1.Vincentius yobi 2.Anggih Andreas T 3.Yudi Novianto 4.Ardian Novariandar 5.Eko Priyanto 6.Bondan Prakoso
  • 2. Sebelum Heat Treatment Titik ke D1 D2 D rata-rata Kekerasan (VHN) 1 0,48 0,48 0,485 236,45 2 0,49 0,48 0,485 236,45 3 0,52 0,51 0,515 209,71 Setelah Heat Treatment Jarak dari ujung (mm) D1 D2 D rata-rata Kekerasan (VHN) 1 0,43 0,43 0,43 300,81 3 0,45 0,45 0,45 274,67 5 0,45 0,45 0,45 274,67 10 0,47 0,46 0,465 257,23 15 0,49 0,48 0,485 236,45 25 0,5 0,51 0,505 218,09 35 0,54 0,54 0,54 190,74 55 0,54 0,56 0,55 183,87 75 0,56 0,57 0,565 174,23 100 0,57 0,57 0,57 171,19
  • 3.