N212-108 TITLE: Low-Inclusion Content for High-Grade Steel Material Used in Gear-and-Bearing Components
RT&L FOCUS AREA(S): General Warfighting Requirements (GWR)
TECHNOLOGY AREA(S): Materials / Processes
The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), 22 CFR Parts 120-130, which controls the export and import of defense-related material and services, including export of sensitive technical data, or the Export Administration Regulation (EAR), 15 CFR Parts 730-774, which controls dual use items. Offerors must disclose any proposed use of foreign nationals (FNs), their country(ies) of origin, the type of visa or work permit possessed, and the statement of work (SOW) tasks intended for accomplishment by the FN(s) in accordance with section 3.5 of the Announcement. Offerors are advised foreign nationals proposed to perform on this topic may be restricted due to the technical data under US Export Control Laws.
OBJECTIVE: Design and develop a steel processing method to dramatically reduce the inclusion content of steel bar stock for current gear material X-53 double vacuum melt (AMS 6308) beyond levels currently available commercially in steel intended for use in aerospace-level gear-and-bearing components.
DESCRIPTION: The naval aviation community, as owner and operator of aerospace systems, continuously seeks improvement in the manufacturing arena. The Navy occasionally faces issues with inclusions in aerospace components made from the current gear material X-53 double vacuum melt (AMS 6308). Developing a cost-neutral manufacturing technology that would allow higher grade steel material with dramatically lower inclusion content would increase fatigue life, improve safety, and lower sustainment costs for a steel component. The goal is a lower inclusion content level of 90% objective (75% threshold) than is documented in the current inclusion standard in the material standard AMS 6308. This would result in a decrease in cost to the Government and/or original equipment manufacturers (OEMs), while improving homogenous performance of the material in production creation of components and use of those components. Transmission components, such as gears and bearings, are made from steel in the 4 to 14 inch diameter bar sizes. Determination of the size, type, distribution, and location of inclusions within the created material is the desired output. Comparison to current gear material X-53 double vacuum melt with ASTM E45 inspection standard is required to verify improvement.
PHASE I: Develop, design, and demonstrate feasibility of an analytical concept of technology allowing lower level of inclusion content. Projection of size, type, distribution, and location of inclusions within the bar stock are desired identifiable characteristics of a material. Exogenous inclusions such as refractory material are the primary concern, but indigenous inclusions are also a concern. Reduction in both types of inclusions is desired. The Phase I effort will include prototype plans to be developed under Phase II.
PHASE II: Develop and demonstrate a prototype production process with creation of sample material. Determination of the size, type, distribution, and location of inclusions within the created material are the desired output. Comparison to current gear material X-53 double vacuum melt with ASTM E45 standard is required to verify improvement.
PHASE III DUAL USE APPLICATIONS: Finalize and demonstrate a larger scale production process with creation of a heat lot of steel material. Determine the size, type, distribution, and location of inclusions within the created material output. Comparison to current gear material X-53 double vacuum melt with ASTM E45 standard and fatigue test transverse created specimens to verify improvement.
Material failure due to inclusions limits the useful life of gear-and-bearing components. Commercial gear-and-bearing products would have higher and more predictable life. Aerospace, Industrial Machine, and other applications that require more predictable run time to avoid downtime and component changes would benefit from the technology.
KEYWORDS: Inclusion; refractory; steel; Exogenous inclusion; indigenous inclusion; X-53 (AMS 6308); double melt
** TOPIC NOTICE **
The Navy Topic above is an "unofficial" copy from the overall DoD 21.2 SBIR BAA. Please see the official DoD Topic website at rt.cto.mil/rtl-small-business-resources/sbir-sttr/ for any updates.
The DoD issued its 21.2 SBIR BAA pre-release on April 21, which opens to receive proposals on May 19, 2021, and closes June 17, 2021 (12:00pm edt).
Direct Contact with Topic Authors: During the pre-release period (April 21 thru May 18, 2021) proposing firms have an opportunity to directly contact the Technical Point of Contact (TPOC) to ask technical questions about the specific BAA topic. Once DoD begins accepting proposals on May 19, 2021 no further direct contact between proposers and topic authors is allowed unless the Topic Author is responding to a question submitted during the Pre-release period.
SITIS Q&A System: After the pre-release period, proposers may submit written questions through SITIS (SBIR/STTR Interactive Topic Information System) at www.dodsbirsttr.mil/topics-app/, login and follow instructions. In SITIS, the questioner and respondent remain anonymous but all questions and answers are posted for general viewing.
Note: Questions should be limited to specific information related to improving the understanding of a particular topic’s requirements. Proposing firms may not ask for advice or guidance on solution approach and you may not submit additional material to the topic author. If information provided during an exchange with the topic author is deemed necessary for proposal preparation, that information will be made available to all parties through SITIS. After the pre-release period, questions must be asked through the SITIS on-line system.
Topics Search Engine: Visit the DoD Topic Search Tool at www.dodsbirsttr.mil/topics-app/ to find topics by keyword across all DoD Components participating in this BAA.