3139
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№ 2 (17), 2018 |
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1,8-3 |
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20-27 % [13, 18, 19] |
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Д18, 19Ж. |
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№ 2 (17), 2018 |
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Д22, |
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27, 29Ж, |
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№ 2 (17), 2018 |
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Д19, 23, 34, 35Ж |
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№ 2 (17), 2018 |
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9.302-88. |
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Д19, 22, 24Ж. |
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9.302-88 ( |
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№ 2 (17), 2018 |
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Д11, 29Ж, |
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6-02-1-513- |
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Ni-B. |
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74
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№ 2 (17), 2018 |
. 1
1 |
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45-47 |
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0,5-4 |
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50-55 |
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30-50 |
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<2 |
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3,5-5,0 |
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20 - 22 |
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~96 |
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4. |
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~0,02 |
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HV, |
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7-9 |
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6. |
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3/100 |
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550-650 |
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570 - 590 |
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- 2 |
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0,08-0,1 |
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Cr |
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Ni-B |
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σТ-B |
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pH = 3,5- |
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: i = 0,5-4 |
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Ni-B |
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i = 2 |
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0,4 |
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σТ-B |
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( .1 , ) |
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( ) Cr |
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75
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№ 2 (17), 2018 |
.1 . |
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- = 5 |
, t - = 57 ° . 1 - |
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2 ; |
2 - |
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( / ): CrO3 - 150; H2SO4 - 1,5; |
- 1,5; |
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- 6*10-3 |
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.1 . |
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Ni-B ik. |
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- = 20 |
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= 0,054 / ; pH = 4,0; t |
- = 40 0C |
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Ni-B |
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4 |
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0,054 / . |
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1,07 |
0,48 % ( |
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76
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№ 2 (17), 2018 |
Ni-B
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2 |
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Ni2+ σТ-B0 |
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Д22, 24Ж. |
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σТ-B |
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1,5 |
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σТ-B |
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σТ-B |
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σТ-B |
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Cr |
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σТ-B, |
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Ni Cr – |
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– 2,18). |
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R |
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σТ-B Cr |
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σТ-B |
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σТ-B |
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iK = 1-3 |
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σТ-B |
6-8 |
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– 0,5-1,0 |
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400 ° |
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HV |
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σТ-B |
10-12 |
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Ni-B |
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77
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№ 2 (17), 2018 |
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. 2 |
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Ni-B |
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= 4,0; t - |
= 40 0 |
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2. |
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Ni-B |
d ≥ 50 |
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HRA. |
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200 0 |
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57 |
HRA |
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2 |
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Ni-B ( |
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: = 4,0; t = 40 |
; ik = 2 |
/ 2. |
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– 0,05 / |
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, Ni–B, |
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R |
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0,5 |
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50,0 |
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55,0 |
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0,4 |
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100,0 |
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55,4 |
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0,3 |
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200,0 |
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54,2 |
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Ni-B |
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15-20 |
200 |
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Cr |
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60 |
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= |
30-60 |
/ 2, |
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t - = 55–57 0 |
, |
7,19-9,25 |
Д19, 20Ж. |
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, |
- |
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55 HRc |
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50-200 |
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. |
. 2. |
Ni-B. |
: pH = 4,0; t - = 40 ° ; ik = 2 A/ |
2; d = 15 |
78
, |
№ 2 (17), 2018 |
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Ni-B |
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Ni-B, |
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iK = |
2 / |
2; |
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= 4,0; t - |
= 40 ° |
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VH2 = 60 |
3/100 , |
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VH2 |
= |
550- |
650 |
3/100 |
Д27Ж. |
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Ni-B – |
10 |
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Ni-B |
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( |
. 1). |
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2. |
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Ni-B c |
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0,1 |
1 |
. % |
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d = |
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15 |
( |
. 2) |
43 |
100 |
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3/100 , |
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2 |
1,96 |
7, 05 %, |
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0,1, |
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– 0,15- |
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0,18. |
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Д27Ж |
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12 |
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Д22, 24, 32Ж, |
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190-200 ˚C |
20-30 |
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Ni-B |
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50 |
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[36]. |
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. 3, |
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79