Application of H.I.P
Application of H.I.P
■ Superalloy
※Creep rupture properties of Ni-Base Superalloy
| Alloy | H.I.P | Test Conditions | Life(ks) | Elongation(%) | R/A(%) | |
|---|---|---|---|---|---|---|
| Temperature(K) | Stress(MPa) | |||||
| Inconel 738 | × | 1253 | 152 | 68.4 | 11.8 | 20 |
| ○ | 1253 | 152 | 189 | 20.5 | 20.6 | |
| Rene 77 | × | 1253 | 152 | 183.6 | 19.4 | 37 |
| ○ | 1253 | 152 | 244.8 | 22 | 55 | |
| Inconel 792 | × | 1143 | 310 | 630 | 9.2 | 6.5 |
| ○ | 1143 | 310 | 1018.8 | 12.1 | 22 | |
| Rene 80 | × | 1143 | 310 | 149.6 | 2.5 | 2.5 |
| ○ | 1143 | 310 | 507.6 | 11.5 | 17 | |
■ Casting
■ WC-Co, Ceramic
■ P/M HSS
■ 3D Printing
Hipping fo AM parts
As built
After HIP
Ref: Porosity regrowth during heat treatment of hot isostatically pressed additively manufactured titanium components, S.Tammas-Williams et al, Scripta Materialia 122(2016) 72-76
■ HIP only eliminates intemal, isolated defects
- Surface defects are not eliminated
- Porosity acts as stress concentrations and crack initiation points
- Porosity acts as stress concentrations and crack initiation points
■ HIP gives~100% relative density
- Improved ductility and fracture toughness
- Much improved fatigue properties
- Lower scattering in properties
- Better machined surfaces
- Much improved fatigue properties
- Lower scattering in properties
- Better machined surfaces
■ The Use of Hipped Materials
| Hipped Material | Application |
| Al O | Battery components |
| Al alloys | Aerospace castings, Turbo-impellers |
| Co-based Superalloy | Medical implants |
| Encapsulated powder | Turbine discs, Claddings, High speed & Tool steel |
| Mg alloys | Aircraft components |
| Magnetic materials(Ferrites) | Electromagnets and Permanent magnets |
| Ni-Al Bronze | Naval castings |
| Plasma-sprayed coatings | Wear and Corrosion-resistant facings |
| Si N | High-temperature components |
| Steels | High-strength parts(Aerospace and automotive) |
| Ti alloys | Aerospace castings |
| WC hardmeta | Cutting tools and Wear parts |
■ The Composite Technology by Canning H.I.P
It is possible for the bind technology for other materials or same materials by Canning H.I.P
- It’s easy to manufacture the items which can be made difficult with welding or brazing method
- Bonding of dissimilar material such as metal, ceramic
- It can be applied for various fields.(ex. target, cooling channel, bonding-pipe)
■ Canning HIP Process
Preparation
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Welding
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Leak Test
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Degassing
Leak Test
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Sealing
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Bubble Test
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HIP
Finish
■ Powder Canning H.I.P
(a)
Fill can
Fill can
(b)
Vacuum bakeout
Vacuum bakeout
(c)
Hot isostatic press
Hot isostatic press
(d)
Remove can
Remove can
- It's possible to make the alloy which has hard conditions.
- Manufacture the P/M HSS
- Manufacture the carbon-carbon composite
- Manufacture the sputtering target for semiconductors
- It can be applied for various fields. (ex. roller, knife, wear-resistance products)
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