Attachment 08 Sample Task 02 SOW.pdf

SOLICITATION: N00173-21-R-ZL01

ATTACHMENT 08

SAMPLE TASK ORDER 02

STATEMENT OF WORK

CORROSION RESISTANT SHAFT DEVELOPMENT

1. INTRODUCTION: The Naval Research Laboratory has been conducting research and development on corrosion resistant steels and composites for use in naval propulsion applications. Typically this research includes the design, manufacturing and testing of half to full scale test articles with experimentation and investigation occurring in each of these efforts. The design of shafts for use in a seawater environment must consider many potential forms of attack: corrosion fatigue, stress corrosion cracking, tribo-corrosion, crevice corrosion and galvanic corrosion. The microstructural and physical metallurgy characteristics of the components are also important as they can significantly affect corrosion performance. Finally, this research has included the design of corrosion mitigation measures and the compatibility of these with the mitigation schemes. The latter is particularly important since cathodic protection has potentially deleterious effects on metallic and non-metallic interfaces (e.g. coating to metal surfaces).

2. REQUIREMENT: The Contractor shall conduct applied research to research and develop a more corrosion resistant shaft material for use in US Navy ships.

Specifically, this research will consider both options for metallic and composite for shafts. This component may utilize commercially available components, raw materials or be based on entirely new materials. While a fully designed component of this task is not intended, a full consideration of the material properties, identify key technical and manufacturing risks and development of detailed research plan to investigate and inform these risks is required.

3. TASK OBJECTIVES: The Contractor shall conduct research and development in support of the requirement. The Contractor will specifically be responsible for 1) identification of materials and requirements, 2) test plan preparation and execution, 2) experimental set-up, 3) procurement of experimental equipment, test stands and materials, d) conduct coating system demonstrations as identified in the subtasks, and

e) report preparation. Tasking is expected to fall into the following subtasks:

3.1. Material Identification: The Contractor shall identify at least 2 metallic and 1 non-metallic candidate material and provide a basis for their selection and the potential issues with their use or construction.

3.2. Material Characterization: The Contractor shall characterize the mechanical and microstructural attributes of the candidate materials through laboratory testing.

The Contractor shall propose a full suite of material characterization

SOLICITATION: N00173-21-R-ZL01

ATTACHMENT 08

requirements to fully define and screen these candidate systems. These should include the necessary tests to evaluate the suitability.

3.3. Material Performance Testing: The Contractor shall evaluate the materials for corrosion fatigue (minimum 108 cycles), wear, crevice corrosion and cathodic disbondment resistance of relevant interfaces (e.g. paints or composite to metal).

The Contractor will also identify a corrosion protection scheme (i.e. coatings, cathodic, novel approaches). Other tests pertinent to eventual material qualification may also be proposed.

4. PERIOD OF PERFORMANCE: Twelve (12) months after date of task order award.

5. PLACE OF PERFORMANCE: This work shall be performed at the NRL

Washington, DC and NRL Key West, FL facilities.

6. SECURITY: Contractor personnel performing work under this Task Order must possess SECRET security clearance.

7. DELIVERABLES:

(1) The Contractor shall provide a monthly technical report detailing program progress, issues and plan for next report period.

(2) The Contractor shall provide an email report of all travel, meetings and ship visits conducted within 7 days of the event.

(3) The Contractor shall provide a monthly financial report.

(4) The Contractor shall provide an end of the period-of-performance report by technical effort (Subtask).