PNGV Superplastic Forming of Stainless Steel Auto Components (USCAR) Final Report CRADA No. TC-0881-94

Technical Report · Thu May 07 00:00:00 EDT 1998

DOI:https://doi.org/10.2172/1438808· OSTI ID:1438808

Elmer, John ^[1]; Nielsen, D. ^[1]; Royce, M. ^[1]; Caldwell, W. ^[1]; Sherman, A. ^[1]; Bridges, B. ^[1]; Smith, M. ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

The DOE/DP CRADA consisted of three tasks that were to be performed concurrently by LMES and LLNL. LMES evaluated mechanical properties of candidate duplex stainless steel alloys at various temperatures and strain rate to determine forming behavior. LLNL evaluated the weldability and the effect of the heat affected zone (HAZ) from the weld on the microstructure of duplex stainless steel. At the beginning of the CRADA, commercially available duplex stainless steel was purchased to provide material that would have optimum characteristics. Superdux 65 (SD65) was acquired and tested and was used to form initial test parts. LMES cast and processed a couple of duplex stainless steel alloys that exhibited superplastic forming (SPF) behavior in case a domestic material was unavailable.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lockheed Martin Energy Systems (LMES), Oak Ridge, TN (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Defense Programs (DP)
• Contributing Organization: Chrysler Corp., Auburn Hills, MI (United States); General Motors (GM), Flint, MI (United States); Ford Motor Co., Dearborn, MI (United States)
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1438808
• Report Number(s): LLNL-TR-748520; UCRL-ID-138143
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE