Mechanical Testing of Zirconium Alloys

Basic course for practicing engineers and managers | taught by A.N.T. International

Course description


Mechanical testing of zirconium alloys has many uses: to confirm that the material meets the specification, to evaluate new alloys or modifications to old ones, to elucidate mechanisms of strengthening or embrittlement, and to assess the effects of reactor operation. The mechanical response of any material depends on several different parameters such as:

  • Specimen geometry,
  • Alloy composition and microstructure,
  • Loading conditions such as stress state and strain rate,
  • Environment such as temperature, irradiation and ambient chemistry.

Residence in a nuclear reactor presents a severe test for materials. Before evaluating the mechanical properties, knowledge is required on the conditions of normal reactor service with its operational variations, the challenge when spent fuel is stored, and the consequences of accidents. Various mechanical tests are done to simulate the conditions faced by fuel cladding and structural components in the reactor. In applying the results from mechanical testing of zirconium alloys to reactor performance, it is crucial to have a good knowledge of the situation being addressed and how the different critical testing parameters affect the material response so the results are useful to predict performance accurately and satisfy regulatory requirements. The objective of this course is to provide this knowledge.

This course involves watching webinars. Complementary reading is optional to even deepen your knowledge. The course material including the online content can be accessed at times convenient. The PowerPoint-presentations are available for download on almost all lectures. You will find them just before the lecture starts.

If you need a printed certificate, please don’t hesitate to contact us and we will send it to you via regular mail. You may reach us at

Please note that these PowerPoint-presentations are the actual file from the seminar that has been recorded. Therefore, there may occur spelling errors and/or less perfect pictures or slides. As the presentations are the expert’s own material we have not edited them before making these lectures available online. If you have any questions regarding this course, please contact support at


The Authors and Lecturers of the report/webinars are World Class Experts in their fields and are as follows:

Dr. Tahir Mahmood

Course duration

The below listed time for the lectures is the actual running time. More time may be needed to digest the information provided in this course and you may have to watch some lectures more than once.

  • Total time: About 10 hours of materials, estimated time to finish, up to 1 week (full time studies) 
  • Webinars: 2.5 h

Course parts

  • Introduction to Mechanical testing
  • Basics on microstructure
  • Fracture toughness and Clad split
  • Evaluating DHC
  • Burst testing
  • Creep rupture
  • Testing of ceramics - SiC


The information presented in this course has been compiled and analysed by Advanced Nuclear Technology International Europe AB (ANT International®) and its subcontractors. ANT International has exercised due diligence in this work, but does not warrant the accuracy or completeness of the information. ANT International does not assume any responsibility for any consequences as a result of the use of the information for any party, except a warranty for reasonable technical skill, which is limited to the amount paid for this course.

A.N.T. International
A.N.T. International

ANT International Academy support team can be reached at