ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The instrumented indentation technique (IIT) is a powerful method for evaluatingmechanical properties of materials such as elastic modulus, tensile strength, fracture toughness andresidual stress. Especially, IIT is a promising alternative to conventional methods of residual stressmeasurement such as hole drilling, saw cutting, X-ray/neutron diffraction, and ultrasonic methodsbecause of its various advantages of nondestructive specimen preparation, easy process,characterization of material properties on local scales and measurement of in-service structures.Evaluation of residual stress using IIT is based on the key concepts that the deviatoric-stress part ofthe residual stress affects the indentation load-depth curve and that the quantitative residual stress in atarget region can be evaluated by analyzing the difference between the residual stress-inducedindentation curve and residual stress-free curve. To verify the applicability of the suggestedtechnique, indentation tests were performed on the welded zone
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.385-387.889.pdf
Permalink