DTB MATERIALS SERVICES
Metallurgical & Materials Analysis
Analyses & Evaluations
DTB can provide a wide range of analyses using our in-house facilities and expertise, as well as our strategic partnerships. Discuss your needs with us! Together, we can develop innovative and highly practical solutions.
DTB provides analyses and evaluations on a wide range of products, such as aircraft landing gear, transparent armor, transit system airbags, rail power/signal transmission cables, bearings, compressors, oxygen breathing apparatus, COPVs, bus chassis, bomb racks, missile launchers, fasteners, rail car couplers, crane pendants, fatigue analysis, shot peening, O-rings, aircraft actuators, welds and brazes, heat exchangers, air filters, gears, rotary wing pylon mounts, automotive exhausts, explosively-bonded joints, gun barrels, gas masks, and more.
- AES with full suite of calibration standards
- SEM/EDS
- GC/QMS
- Optical metallographs
- Stereomicroscopes
- High resolution digital imaging
- Full range of metallographic sample preparation
- Etching hoods
- Hardness (bulk, micro, superficial, scleroscoptic, ultrasonic)
- Indexed borescopes with UV
- Eddy current
- Battery tester
- Aging ovens
- Viscosimetry
- Non-destructive plating/coating thickness
- Carbon coater
- Gold/Palladium sputter coater
- Sectioning and mounting
- Low damage sectioning
- Extensive database and library of specifications
| 1. | Magnetic particle (MPI) | ASTM E 1444 |
| 2. | Liquid penetrant (LPI) | ASTM E 1417 |
| 3. | Hardness measurements a. Standard Rockwell b. Superficial Rockwell c. Micro (Vickers, Knoop) d. Durometer Hardness |
ASTM E 18 ASTM E 18 ASTM E 384 ASTM D 2240 |
| 4. | Metallographic preparation | ASTM STP 557 ASTM STP 504 ASTM STP 839 ASTM E 3 DTB procedure or customer specified |
| 5. | Etching a. Macro-etching b. Micro-etching |
ASTM E 340 ASTM E 381 ASTM E 407 DTB procedure or customer specified |
| 6. | Temper etch (Nital etch) surface inspection | MIL-STD-867C |
| 7. | Electrical conductivity of Al-alloys | AMS 2658 |
| 8. | Micro-structural evaluation (inverted optical – BF and P illumination, and SEM-SEI and BEI contrast) a. General microstructure b. Retained austenite c. Decarburization (visual) d. Grain size e. Inclusions f. Uniformity g. Defects (voids, cracks, etc.) h. Segregation |
The following specifications include all or part of the evaluations listed: ASTM E 3 ASTM E 7 ASTM E 112 ASTM E 930 ASTM E 1181 ASTM E 1077 ASTM E 1382 ASTM E 1951 ASTM E 45 SAE J422 DTB procedure or customer specified |
| 9. | Grain flow and macro-characterization (forging or casting quality) | DTB procedure or customer specified |
| 10. | Case hardening analysis (micro-hardness profile – sample preparation not included) | SAE J423 DTB procedure or customer specified |
| 11. | Decarburization (micro-hardness profile – see #4 for sample preparation) | AMS 2759 ASTM E 1077 ASTM F 2328 SAE J419 DTB procedure or customer specified |
| 12. | Inter-granular attack (chemical/visual) AMS |
AMS 2759 ASTM A 262 ASTM A 763 ASTM G 28 ASTM G 110 ASTM STP 656 DTB procedure or customer specified |
| 13. | Plating/Coating thickness – non-destructive | AMS 2759 ASTM A 262 ASTM A 763 ASTM G 28 ASTM G 110 ASTM STP 656 DTB procedure or customer specified |
| 14. | Plating/Coating composition and thickness | ASTM B 748 ASTM E 1508 DTB procedure |
| 15. | Passivation check | AMS 2700 ASTM A 967 |
| 16. | Bulk composition – quantitative (arc emission) | Machine calibration with standards Aluminum alloys – ASTM E 1251 Titanium alloys – ASTM E 2994 Nickel alloys – ASTM E 3047 Magnesium alloys – ASTM B 954 Stainless steel – ASTM E 1086 Steel – ASTM E 415 Cast iron – ASTM E 1999 Copper alloys Carbon/Alloy steel |
| 17. | Bulk composition – semi-quantitative (EDS) and qualitative (EDS) | ASTM E 1508 DTB procedure with standards |
| 18. | Corrosion identification (SEM + EDS) | Case-based |
| 19. | Macro-imaging with photos (Stereomicroscopic) | Case-based |
| 20. | Macro-fractography with photos | Case-based |
| 21. | Micro-fractography with photos (SEM + EDS) | Case-based |
| 22. | Root cause failure investigation | DTB procedure or case-based |
- Aecom
- Aerial Machine
- Air Industries
- Alstom
- Ametek
- AMT
- Ansaldo
- Arnold Defense
- Aurora
- BE Aerospace
- BNL
- CAF
- Calsonic
- Carlton
- CCAD
- Cincinnati Thermal Spray
- Colt
- Columbia Helicopters
- Con Edison
- CPI-Aero
- DLA
- DRS
- DSCC
- DSCP
- DSCR
- EDO (Harris-Exelis)
- Exelis
- GAF
- Gillig
- Goodrich Lighting Systems
- Gradus
- Grosser Consulting
- GSA
- Harris
- Heico
- Heil
- Heineken
- Helicopter Tech
- Honda
- Honeywell
- HTI
- Keyspan
- K-Rain
- Laundrylux
- Lipman Nurit
- LIRR
- LK Comstock
- LTK
- Marvin Engineering
- Mitsubishi
- Montaplast
- Mossberg
- Mountain Plumbing
- MTA
- NATEC
- NAVAIR
- NAVSUP - Mechanicsburg
- NAVSUP - Philadelphia
- Neoplan
- New York Air Brake
- NGC
- NYCT
- Parsons Brinckerhoff
- Questek Innovations LLC
- Radian
- Raytheon
- Reavis & Cianciolo
- Remington
- SAIC
- SAP
- Schott Glass
- Sierra Nevada
- SMCC
- Smith & Wesson
- Spirit Aerosystems
- Swiss Tech
- TCOM
- Teknoseal
- Thompson Linear
- Trans Aero
- Triumph
- Turbodynamics
- US Army AMCOM
- US Navy - Cherry Point
- US Navy - Lakehurst
- USAF - Eglin AFB
- USAF - Hill AFB
- USAF - Warner Robins AFB
- USCG
- USPS
- VJT
- Walker Die Casting
- WSP Inc.