SOLICITATION NOTICE
A -- JOINING INVESTIGATION BETWEEN REFRACTORY METALS AND NICKEL-BASE SUPERALLOYS
- Notice Date
- 4/4/2005
- Notice Type
- Solicitation Notice
- NAICS
- 541710
— Research and Development in the Physical, Engineering, and Life Sciences
- Contracting Office
- NASA/Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135
- ZIP Code
- 44135
- Solicitation Number
- NNC05102828Q
- Response Due
- 4/8/2005
- Archive Date
- 4/4/2006
- Description
- NASA/GRC has a requirement for material research to identify a promising solid-state joining process that will allow refractory metals and Ni-base superallys to be welded. The requirement is as follows: NASA will provide the materials. Vendor requirements and deliverables contained in subtasks. Length of time for contract: 3 months Final Report required. T-111 is a tantalum alloy. 1. Inertia Welding We are considering providing ? diameter rod for each of the materials listed below to be welded in the following combinations: Mo 47Re to Hastelloy X T-111 to Hastelloy X Mo 47Re to Mar M247 cast and heat treated (coarse cast grain) T-111 to Mar M247 cast and heat treated (coarse cast grain) Mo 47Re to Mar M247 micro-cast and heat treated (fine cast grain) T-111 to Mar M247 micro-cast and heat treated (fine cast grain) (Note: Difficulty welding coarse grain M247 would cause it to drop out of test matrix) We would like six specimens for each metal combination to be used for: 1 - Exhibit piece to pass around the office and meetings 2 - Section, as-welded, for metallographic evaluation 3 - 1,000 hr (TBD) thermal exposure specimen 4 - 5,000 hr (TBD) thermal exposure specimen 5 - Combined with Magnetic Pulse exhibit piece 6 - Combined with Magnetic Pulse for metallographic evaluation 2. Magnetic Pulse Welding We would like to form a refractory tube over the ? inch diameter superalloy rod to demonstrate that this is also a practical alternative. We are trying to obtain stock refractory tube in the range of 1/2 to 5/8 inch inside diameter and 0.060 to 0.100 inch wall thickness. We will machine the internal rod diameter to create the required gap to the specification you will provide once we obtain the tube. We would like two specimens for evaluation for each of the following combinations: Mo 47Re tube to Hastelloy X rod T-111 tube to Hastelloy X rod Mo 47Re tube to Mar M247 rod T-111 tube to Mar M247 rod Mo 47Re tube to inertia welded rod (Mar M247 to Mo 47Re) T-111 tube to inertia welded rod (Mar M247 to T-111) 3. Electro-Spark Deposition (ESD) We would like to examine specimens joined by ESD. Because of the manual method you will likely use and the slow deposition process, we are intentionally limiting our observations to a few small ?sheet? specimens. For convenience, we chose a sheet tensile specimen which for some of the materials is already available. We suggest cutting a tensile specimen in half at the center of the gage section and joining the two dissimilar materials. The reduced cross section is nominally 0.250 inch wide and 0.020 inch thick. We would like three specimens: 1) exhibit piece, 2) section as-welded for metallographic evaluation 3) 1,000 hr (TBD) thermal exposure specimen or RT tensile specimen for the following material combinations: Mo 47Re strip to Mar M247 strip T-111 strip to Mar M247 strip NASA/GRC intends to purchase the items/services from the Edison Welding Institute, Inc, of Columbus, Ohio. This recommendation is made pursuant to FAR 13.106, for the acquisition of supplies or services determined to be reasonably available from only one source (U.S.C. 2304(c)(1)). Due to EWI's unique qualifications and historical experience, their leadership in R&D involving magnetic pulse welding, inertia welding and electro-spark facilities in-house, it enables them to make critical examiniations and decisions toward both material and process optimization. The Government does not intend to acquire a commercial item using FAR Part 12. See Note 26. Interested organizations may submit their capabilities and qualifications to perform the effort in writing to the identified point of contact not later than 4:30 p.m. local time on 04/08/2005. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice, is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. An Ombudsman has been appointed. See NASA Specific Note "B". Any referenced notes may be viewed at the following URLs linked below.
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- Record
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