DTB MATERIALS SERVICES

Metallurgical & Materials Analysis

Metallurgical & Materials Homepage | Contact DTB for more information about our metallurgical & materials analysis services.

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.
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