Inconel 625 (UNS N06625) is a nickel-based superalloy with added chromium, molybdenum and niobium that possesses high strength properties and resistance to elevated temperatures. It also demonstrates remarkable protection against corrosion and oxidation. Its ability to withstand high stress and a wide range of temperatures, both in and out of water, as well as being able to resist corrosion while being exposed to highly acidic environments makes it a fitting choice for nuclear and marine applications.
Key Feature
Corrosion Resistance
Excellent Weldability
Excellent Strength
Excellent Heat Resistance
Application
Maritime Industry
Nuclear Industry
Chemical Industry
Chemical Composition
UNS N06625
Ni
Cr
Mo
Nb+Ta
Co
Fe
Weight Percent(wt%)
Min 58.0
20.0 - 23.0
8.0 - 10.0
3.15 - 4.15
Max 1.0
Max 5.0
Mechanical Properties
Process
Tensile Strength (MPa)
Yield Strength (MPa)
Elongation (%)
Reduction of Area (%)
Hardnes (Hv)
ASTM A494
Min. 485
Min. 275
Min. 25
-
-
Casting
449 / 501
274 / 278
26 / 32
-
219
Forging
901 / 941
530 / 613
45 / 50
-
328
InssTek (DED)XY/Z
1002 / 1013
649 / 670
31 / 32
-
252
Powder
SEM (x100)
SEM (x200)
Powder Spec. [Spherical for AM]
Powder Size (㎛)
Flowability [ASTM B213 / B212]
Avg
85.05
Apparent Density (g/㎤)
4.82
Min
64.22
Flow Time for Mass (s/50g)
12.33
Max
121.30
Flow Rate for Volume (s/㎤)
1.19
Melting Point
Celsius (℃)
Fahrenheit (°F)
1,290-1,350
2,350 - 2,460
DED Process Parameter
Powder
4.75 g/min
Method
CF&CFC
Pattern
ZigzagL
Toolpath Spacing
0.8 mm
Layer Height
450 ㎛
Gas (L/min)
Coaxial
8.0
Powder
3.0
Shield
10.0
Dwell Time
3.5 sec
Travel Speed
0.85 m/min
No.
Height
Laser Power (W)
1
480 ~ Max
480
2
460 ~ 480
483
3
440 ~ 460
525
4
420 ~ 440
553
5
400 ~ 420
580
6
380 ~ 400
609
7
360 ~ 380
637
8
340 ~ 360
675
9
320 ~ 340
693
10
0 ~ 320
750
-
Default
525
Published research paper using InssTek’s technology
I Paper Review
Heliyon (2024)
Design of dissimilar material joint for defect free multi-material additive manufacturing via laser-directed energy deposition
Jin, Q. Y., Nam, H., Jo, H., Park, J., Kang, H. J., Kim, D. J., & Lee, W.
This study aims to optimize the shape of interface geometry between the dissimilar materials, ensuring a defect free joint, and develop functional designs that mechanically interlock 2 dissimilar materials through InssTek's MX-Lab.
Experiment
In this study, AISI 316L stainless steel and Inconel 625 (Nickel alloy) were joined into various structures using the LDED.
And tensile test was chosen to evaluate the performance of the various designs. This test is conducted to assess the structural characteristics and performance of both the V-type and anchor joints.
AISI 316L, Inconel 625 multi-material block manufactured via LDED
Conclusions
The results indicate that the specimens demonstrate varied mechanical properties due to the influence of lamination direction and order, which affect the formation of critical cracks and pores. It is expected that the same improvement can be obtained when the developed strategy is applied on other joints which connect other alloys combinations.
DIC results showing strain fields in the X, Y, and XY directions when they are at the maximum load
* Reference - Heliyon (2024), Design of dissimilar material joint for defect free multi-material additive manufacturing via laser-directed energy deposition
Metal 3D Printing | DED | Alloy Research | Aerospace | Repair | Cladding | Medical 154, Sinseong-ro, Yuseong-gu, Daejeon, Republic of Korea
