{"project":{"acronym":"","projectId":9009,"title":"DARWIN-HC: A Tool to Predict Hot Corrosion of Nickel-Based Turbine Disks","primaryTaxonomyNodes":[{"taxonomyNodeId":10867,"taxonomyRootId":8816,"parentNodeId":10864,"level":3,"code":"TX12.2.3","title":"Reliability and Sustainment","definition":"Reliability and sustainment aims to develop and include statistically based designs, tools and methods for dependable determination of the participation of structural reliability into the overall flight vehicle reliability concomitant with the needed autonomy for complex missions.","exampleTechnologies":"Predictive damage/life extension prediction methods, structural/thermal health monitoring, virtual digital fleet leader/digital twin sustainment","hasChildren":false,"hasInteriorContent":true}],"startTrl":3,"currentTrl":6,"endTrl":6,"benefits":"The initial Non-NASA commercialization strategy is straightforward and significantly bolstered by the strength of the research team, the numerous industry contacts, and the existing DARWIN software infrastructure and support. The commercial product output of the proposed SBIR effort will be DARWIN-HC --- an extension of an existing FAA-sponsored software tool that predicts the probability of fracture of titanium aircraft turbine rotor disks to model and predict the effects of Type II hot corrosion. DARWIN is rapidly gaining acceptance in the aerospace community and DARWIN-HC will further expand the applicability and reach of the DARWIN product line. The most direct commercialization route is via collaboration with the major airframers. Fortunately, Barron Associates has strong, existing working relationships with these companies. As parallel research advances at the major aerospace companies, BAI will pursue commercialization and collaboration opportunities. Although it is difficult to predict the rate of advancement of the ongoing research activities upon which future commercialization may depend, even a relatively small market can play a significant role in our growth as a company.
NASA aeronautics defined eight challenge problems for which the Aircraft Aging and Durability (AAD) Project can deliver specific research products to address aeronautics community needs. While the re-search challenges address different aircraft components and specific aging-related issues, the research results will improve the ability to detect, predict, and manage aging hazards. One of these eight challenge problems is \"Durability of Engine Superalloy Disks\". The research focus is the durability of new disk alloys at higher operating temperatures to enable improved engine efficiency. To improve durability of these new superalloy disks, the issues of microstructural instability, hot corrosion, and fatigue durability must be addressed. Goals include establishment of a long-term database and derivation of analytic models to predict the degradation of new alloys due to microstructural instability and corrosion. The proposed research effort directly addresses these important challenges.","description":"Hot Corrosion of turbine engine components has been studied for many years. The underlying mechan-isms of Type I Hot Corrosion and Type II Hot Corrosion are increasingly well-understood. Modern turbine engine designs that seek to achieve better fuel efficiency in part by increasing turbine inlet temperatures are strong candidates for nickel-based superalloy turbine disk materials. As disk temperatures approach 700C, designers must consider the likelihood and effects of Type II corrosion. Type II corrosion is typically characterized by localized corrosion pitting caused by melting of sulfur-containing salts. Type II hot corrosion pits have been shown to decrease the fatigue resistance of superalloys due to initiation of fatigue cracks at hot corrosion pits. However, the rigorous analytical models and tools needed by turbine engine designers to predict Type II corrosion effects are not currently available. The overall objective of this research program will be to develop DARWIN-HC a probabilistic Type II hot corrosion, fatigue cracking, and fatigue life prediction software tool for nickel-based superalloy turbine disks. The Phase I research was based on data provided by both NASA and the research team. The key Phase I innovations included enhanced probabilistic models that are explicitly parameterized by the relevant environmental and material variables. The models are a significant step towards modeling the spatial and temporal evolutions of corrosion pits setting the stage for the development of fatigue life prediction capability. Whereas the existing DARWIN software contains probabilistic models of hard alpha anomalies in titanium disk materials, DARWIN-HC will feature the probabilistic models of defect distributions due to Type II hot corrosion, which can lead to fatigue crack initiation. In Phase II, the team will create a functional DARWIN-HC prototype software application for evaluation by NASA and industry.","startYear":2011,"startMonth":6,"endYear":2013,"endMonth":5,"statusDescription":"Completed","principalInvestigators":[{"contactId":3164303,"canUserEdit":false,"firstName":"Jason ","lastName":"Burkholder","fullName":"Jason Burkholder","fullNameInverted":"Burkholder, Jason ","primaryEmail":"burkholder@bainet.com","publicEmail":true,"nacontact":false},{"contactId":205372,"canUserEdit":false,"firstName":"Jason","lastName":"Burkholder","fullName":"Jason Burkholder","fullNameInverted":"Burkholder, Jason","primaryEmail":"burkholder@bainet.com","publicEmail":true,"nacontact":false}],"programDirectors":[{"contactId":206378,"canUserEdit":false,"firstName":"Jason","lastName":"Kessler","fullName":"Jason L Kessler","fullNameInverted":"Kessler, Jason L","middleInitial":"L","primaryEmail":"jason.l.kessler@nasa.gov","publicEmail":true,"nacontact":false}],"programExecutives":[{"contactId":215154,"canUserEdit":false,"firstName":"Jennifer","lastName":"Gustetic","fullName":"Jennifer L Gustetic","fullNameInverted":"Gustetic, Jennifer L","middleInitial":"L","primaryEmail":"jennifer.l.gustetic@nasa.gov","publicEmail":true,"nacontact":false}],"programManagers":[{"contactId":62051,"canUserEdit":false,"firstName":"Carlos","lastName":"Torrez","fullName":"Carlos Torrez","fullNameInverted":"Torrez, Carlos","primaryEmail":"carlos.torrez@nasa.gov","publicEmail":true,"nacontact":false}],"projectManagers":[{"contactId":188588,"canUserEdit":false,"firstName":"Jack","lastName":"Telesman","fullName":"Jack Telesman","fullNameInverted":"Telesman, Jack","primaryEmail":"Jack.Telesman@grc.nasa.gov","publicEmail":true,"nacontact":false},{"contactId":461333,"canUserEdit":false,"firstName":"Theresa","lastName":"Stanley","fullName":"Theresa M Stanley","fullNameInverted":"Stanley, Theresa M","middleInitial":"M","primaryEmail":"theresa.m.stanley@nasa.gov","publicEmail":true,"nacontact":false}],"website":"","libraryItems":[],"transitions":[{"transitionId":66069,"projectId":9009,"partner":"Other","transitionDate":"2011-06-01","path":"Advanced From","relatedProjectId":8965,"relatedProject":{"acronym":"","projectId":8965,"title":"DARWIN-HC:¿ A Tool to Predict Hot Corrosion of Nickel-Based Turbine Disks","startTrl":2,"currentTrl":3,"endTrl":3,"benefits":"The initial Non-NASA commercialization strategy is straightforward and significantly bolstered by the inclusion of Southwest Research Institute on the team from the outset of the research. The commercial product output of the proposed SBIR effort will be DARWIN-HC --- an extension of SwRI's existing FAA-sponsored software tool that predicts the probability of fracture of titanium aircraft turbine rotor disks to model and predict the effects of Type II hot corrosion. DARWIN is rapidly gaining acceptance in the aerospace community and DARWIN-HC will further expand the applicability and reach of the DARWIN product line.
NASA aeronautics defined eight challenge problems for which the Aircraft Aging and Durability (AAD) Project can deliver specific research products to address aeronautics community needs. While the re-search challenges address different aircraft components and specific aging-related issues, the research results will improve the ability to detect, predict, and manage aging hazards. One of these eight chal-lenge problems is \"Durability of Engine Superalloy Disks\". The research focus is the durability of new disk alloys at higher operating temperatures to enable improved engine efficiency. To improve durability of these new superalloy disks, the issues of microstructural instability, hot corrosion, and fatigue durability must be addressed. Goals include establishment of a long-term database and derivation of analytic models to predict the degradation of new alloys due to microstructural instability and corrosion. The proposed research effort directly addresses these important challenges.","description":"Hot Corrosion of turbine engine components has been studied for many years. The underlying mechan-isms of Type I Hot Corrosion and Type II Hot Corrosion are increasingly well-understood. Nickel-based superalloys have shown strong resistance to high temperature oxidation attack and, of course, excellent high temperature strength. Modern turbine engine designs that seek to achieve better fuel efficiency in part by increasing turbine inlet temperatures are strong candidates for nickel-based superalloy turbine disk materials. As disk temperatures approach 700C, designers must consider the likelihood and effects of Type II corrosion. Type II corrosion is typically characterized by localized corrosion pitting caused by melting of sulfur-containing salts. Type II hot corrosion pits have been shown to decrease the fatigue resistance of superalloys due to initiation of fatigue cracks at hot corrosion pits. However, the rigorous analytical models and tools needed by turbine engine designers to predict Type II corrosion pit formation and fatigue life degradation due to corrosion pits are not currently available. Barron Associates, Inc. and its research partners propose to develop corrosion pitting and fatigue life models for nickel-based superalloys subjected to Type II hot corrosion. The models will be commercia-lized and made available to the research and development community.","startYear":2010,"startMonth":1,"endYear":2010,"endMonth":7,"statusDescription":"Completed","website":"","program":{"acronym":"SBIR/STTR","active":true,"description":"
The NASA SBIR and STTR programs fund the research, development, and demonstration of innovative technologies that fulfill NASA needs as described in the annual Solicitations and have significant potential for successful commercialization. If you are a small business concern (SBC) with 500 or fewer employees or a non-profit RI such as a university or a research laboratory with ties to an SBC, then NASA encourages you to learn more about the SBIR and STTR programs as a potential source of seed funding for the development of your innovations.
The SBIR and STTR programs have 3 phases:
The SBIR and STTR Phase I contracts last for 6 months with a maximum funding of $125,000, and Phase II contracts last for 24 months with a maximum funding of $750,000 - $1.5 million.
Opportunity for Continued Technology Development Post-Phase II:
The NASA SBIR/STTR Program currently has in place two initiatives for supporting its small business partners past the basic Phase I and Phase II elements of the program that emphasize opportunities for commercialization. Specifically, the NASA SBIR/STTR Program has the Phase II Enhancement (Phase II-E) and Phase II eXpanded (Phase II-X) contract options.
Please review the links below to obtain more information on the SBIR/STTR programs.
Provides an overview of the SBIR and STTR programs as implemented by NASA
Provides access to the annual SBIR/STTR Solicitations containing detailed information on the program eligibility requirements, proposal instructions and research topics and subtopics
Schedule and links for the SBIR/STTR solicitations and selection announcements
Federal and non-Federal sources of assistance for small business
Search our complete archive of awarded project abstracts to learn about what NASA has funded
Still have questions? Visit the program FAQs
","programId":73,"responsibleMd":{"acronym":"STMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4875,"organizationName":"Space Technology Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"responsibleMdId":4875,"stockImageFileId":36648,"title":"Small Business Innovation Research/Small Business Tech Transfer"},"lastUpdated":"2024-1-10","releaseStatusString":"Released","viewCount":564,"endDateString":"Jul 2010","startDateString":"Jan 2010"},"infoText":"Advanced from another project within the program","infoTextExtra":"Another project within the program (DARWIN-HC:¿ A Tool to Predict Hot Corrosion of Nickel-Based Turbine Disks)","dateText":"June 2011"},{"transitionId":66070,"projectId":9009,"transitionDate":"2013-05-01","path":"Closed Out","closeoutDocuments":[{"title":"Final Summary Chart","file":{"fileExtension":"pdf","fileId":306112,"fileName":"SBIR_2009_2_FSC_A1.03-8806","fileSize":76544,"objectId":66070,"objectType":{"lkuCodeId":1841,"code":"TRANSITION_FILES","description":"Transition Files","lkuCodeTypeId":182,"lkuCodeType":{"codeType":"OBJECT_TYPE","description":"Object Type"}},"fileSizeString":"74.8 KB"},"transitionId":66070,"fileId":306112}],"infoText":"Closed out","infoTextExtra":"","dateText":"May 2013"}],"responsibleMd":{"acronym":"STMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4875,"organizationName":"Space Technology Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"program":{"acronym":"SBIR/STTR","active":true,"description":"The NASA SBIR and STTR programs fund the research, development, and demonstration of innovative technologies that fulfill NASA needs as described in the annual Solicitations and have significant potential for successful commercialization. If you are a small business concern (SBC) with 500 or fewer employees or a non-profit RI such as a university or a research laboratory with ties to an SBC, then NASA encourages you to learn more about the SBIR and STTR programs as a potential source of seed funding for the development of your innovations.
The SBIR and STTR programs have 3 phases:
The SBIR and STTR Phase I contracts last for 6 months with a maximum funding of $125,000, and Phase II contracts last for 24 months with a maximum funding of $750,000 - $1.5 million.
Opportunity for Continued Technology Development Post-Phase II:
The NASA SBIR/STTR Program currently has in place two initiatives for supporting its small business partners past the basic Phase I and Phase II elements of the program that emphasize opportunities for commercialization. Specifically, the NASA SBIR/STTR Program has the Phase II Enhancement (Phase II-E) and Phase II eXpanded (Phase II-X) contract options.
Please review the links below to obtain more information on the SBIR/STTR programs.
Provides an overview of the SBIR and STTR programs as implemented by NASA
Provides access to the annual SBIR/STTR Solicitations containing detailed information on the program eligibility requirements, proposal instructions and research topics and subtopics
Schedule and links for the SBIR/STTR solicitations and selection announcements
Federal and non-Federal sources of assistance for small business
Search our complete archive of awarded project abstracts to learn about what NASA has funded
Still have questions? Visit the program FAQs
","programId":73,"responsibleMd":{"acronym":"STMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4875,"organizationName":"Space Technology Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"responsibleMdId":4875,"stockImageFileId":36648,"title":"Small Business Innovation Research/Small Business Tech Transfer"},"leadOrganization":{"canUserEdit":false,"city":"Charlottesville","congressionalDistrict":"Virginia 05","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"external":true,"linkCount":0,"organizationId":2761,"organizationName":"Barron Associates, Inc.","organizationType":"Industry","stateTerritory":{"abbreviation":"VA","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Virginia","stateTerritoryId":7},"stateTerritoryId":7,"ein":"042228710 ","dunsNumber":"120839477","uei":"C8FUKQKC9JB4","naorganization":false,"organizationTypePretty":"Industry"},"supportingOrganizations":[{"acronym":"GRC","canUserEdit":false,"city":"Cleveland","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"external":false,"linkCount":0,"organizationId":4860,"organizationName":"Glenn Research Center","organizationType":"NASA_Center","stateTerritory":{"abbreviation":"OH","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Ohio","stateTerritoryId":23},"stateTerritoryId":23,"naorganization":false,"organizationTypePretty":"NASA Center"}],"statesWithWork":[{"abbreviation":"OH","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Ohio","stateTerritoryId":23},{"abbreviation":"VA","country":{"abbreviation":"US","countryId":236,"name":"United States"},"countryId":236,"name":"Virginia","stateTerritoryId":7}],"lastUpdated":"2024-1-10","releaseStatusString":"Released","viewCount":522,"endDateString":"May 2013","startDateString":"Jun 2011"}}