KAPL-3158 - Fatigue Design Data for the Titanium Alloy, Ti-6Al-6V-2Sn

Aug 20, 2026

Fatigue design data are compiled for the titanium alloy Ti-6Al-6V-2Sn, addressing unnotched fatigue strength and the influence of mean stress. The report evaluates notch sensitivity and presents test descriptions, results, and a discussion section to connect observed fatigue behavior with design-relevant implications. Summary and conclusions consolidate key findings for engineering use, with references and supporting appendices providing additional damage-law and δ-concept equations.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages40

Reading Time1 h 41 min

AccessFree to download

Abstract

Introduction

Test description

Test results

Discussion of test results

Unnotched fatigue strength

Effect of mean stress on unnotched fatigue strength

Notch sensitivity

Summary and conclusions

References

Appendix A

Appendix B

| | | --- | | | | | | | | | | KAPL-3158 | | AEC Research and | | Development Report | | | KNOLLS | ATOMIC POWER
LABORATORY | | | --- | --- | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Operated for the | | United States AtomicEnergy Commission byGENERALELECTRIC DT/E Fatigue Design Datafor theTitanium Alloy,Ti-6Al-6V-2Sn D.F.Mowbray May 20,1966 # DISCLAIMER This report was prepared as an account of work sponsored by anagency of the United States Government.Neither the United StatesGovernment nor any agency Thereof,nor any of their employees,makes any warranty,express or implied,or assumes any legalliability or responsibility for the accuracy,completeness,orusefulness of any information,apparatus,product,or processdisclosed,or represents that its use would not infringe privatelyowned rights.Reference herein to any specific commercial product,process,or service by trade name,trademark,manufacturer,orotherwise does not necessarily constitute or imply its endorsement,recommendation,or favoring by the United States Government or anyagency thereof.The views and opinions of authors expressed hereindo not necessarily state or reflect those of the United StatesGovernment or any agency thereof. DISCLAIMER Portions of this document may be illegible inelectronic image products.Images are producedfrom the best available original document. UNCLASSIFIED KAPL-3158 UC-25,Metals,Ceramics,andMaterlais(TID-4500,49th Edition) # FATIGUE DESIGN·DATA FOR THE·TITANIUM ALIOY,Ti-6A¹-6V-2Sn D.F.Mowbray May 20,1966 RLLT/SED OP 4OU:CE'ENi J 7UCLEAF C-2C ESTRACTS | LEGAL NOTICE | | --- | | Thi report wn nrenared n nin necount of Coyernment EDODsored work.Neither the Unlted
Ditea,nor the Commisslon,nor any person neting on bchaif of the Commlnnlnn
A.Makes any warranty or representation,expressed or implled,wth respeet to theaceu-
eew.omnetene99.r mefulness of thoinfrmaton Gontaleed in thie report.or that the M94
of any Informatlon,apparatus,method,or process diselosed in thls report may not infringe
Briyately owned righte:o | | B.Ansumes any liabllties with respeet to the use of,or for damages resulting from the
u9o of eiy infermatien.aprrtne,methed.er prnn dienlneed fn the ramrt | | As used in the above,"person acting on behalt of the Commisslon"ineludes any em-
ployee or contraictor of the Commisslon,or employee of such contractor,to the oxtent thnt
such emplovee or contractor of the Commiesfon.or employee of such contrnctor prepares,
disseminates,or provides access to,any Information pursunnt to his employment or contract
with the Commisslon,or his employment with such contractor. | 223194 ala E.E. Authorized Classifier General Electric CompanyKNOLIS ATOMIC POWER LABQRATORYSchenectady,New YorkOperated for the United States Atomic Energy CommissionContract No.W-31-109 Eng-52 UNCLASSIFIED # UNCLASSIFIED LEGAL NOTICE This report was prepared as an account of Government-sponsored work.Neither the United States,nor the Commission,nor any person acting on behalf of the Commission: A.Makes any warranty or representation,expressed orimplied,with respect to the accuracy,completeness,or usefulness of the information contained in thisreport,or that the use of any information,apparatus,method,or process disclosed in this report may notinfringe privately owned rights;or B.Assumes any liabilities with respect to the use of,orfor demages resulting from the use of any information,Apparatus,method,or procese disulused in this report. As used in the above,"person acting on behalf of theCommission"includes any employee or contractor of the Commiosion,

FAQs

What titanium alloy is the fatigue design data focused on?

The report focuses on the titanium alloy Ti-6Al-6V-2Sn.

Which fatigue aspects are analyzed in the report?

It analyzes unnotched fatigue strength, the effect of mean stress on unnotched fatigue strength, and notch sensitivity.

Are equations or supporting materials included beyond the main results?

Yes. Appendix A addresses the maximum effect of mean stress based on a parabolic damage law, and Appendix B provides equations for use with the δ-concept.

Aug 20, 2026

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