17-4PH 雾化粉末
一，17-4PH 主要型号
PSD refers to Malvern Mastersize 3000 Analysis
|
Type |
Size,
μm |
D10，
μm |
D50，
μm |
D90，
μm |
Oxygen
content |
Tap
density, |
Note |
|
|
Water
atomized |
WFP-7 |
7 |
<3.2 |
7~8.5 |
<21 |
<4000ppm |
4.3~4.7 |
Suitable for high gloss surface
polishing |
|
WFP-9 |
9 |
<3.5 |
8.5~10 |
<24 |
<4000ppm |
4.3~4.7 |
/ |
|
|
Gas
atomized |
GFP-12 |
12 |
<4.5 |
11.5~13 |
<28 |
<1300ppm |
4.7~5.2 |
Suitable for high gloss surface
polishing |
二，超细水雾化17-4PH WFP-7粉末的高抛光产品应用
PSD refers to Malvern Mastersize 3000 Analysis
|
Product |
Sintered
atmosphere |
Sintered
Temp. range |
Sintered
density, |
Void ratio,% |
Void dimension
range |
void
> 10μm |
|
17-4PH
WFP-7 |
Hydrogen
1atm |
1320~1350℃/1h |
7.65~7.72 |
1.5~3.5 |
<6μm |
seldom |
|
Argon
20KPa |
1250~1280℃/1h |
~7.75 |
1~2.5 |
<6μm |
seldom |
|
|
Nitrogen
1atm |
1320~1340℃/1h |
~7.68 |
1.5~3.5 |
<6μm |
seldom |
|
|
Nitrogen
80KPa |
1220~1280℃/1h |
~7.75 |
1~2.5 |
<6μm |
seldom |
三、水雾化17-4PH的形貌及烧结状态
SEM of WFP-7 17-4PH H2气氛烧结零件体积内无大的缩孔 超细17-4PH WFP-7 氢气份烧结抛光件