ASTM E3098 test method determines the heating and cooling effect of transformation on the Shape Memory Alloys. The calculation of residual strain after loading and unloading, recovered and unrecovered strain upon heating and cooling, and transformation temperatures are covered in this method. The SI units are considered to be the standard of measurement.
Scope:
ASTM E3098 test method covers the shape memory effect properties of the specimen. The stiffness of the material, recovery of the deformed portion, strain calculation, functioning, product assessment, transformation temperatures, quality control, specification acceptance, and research are dealt with in this method. This creates ease for the customer and supplier to reach an agreement. Moreover, the values of stress and strain are determined, and compensation and recovery techniques are applied.
Procedure:
The test apparatus, such as a compression testing machine with blocks and strain transducer, is used. The temperature regulators are installed to detect the continuous shift of temperature. The test specimen is cooled to its martensitic state and deformed under the uniaxial loading. The force is removed, and the specimen is heated and cooled continuously to measure its extension and contraction against the specimen temperature. Specific strain rates are determined, and stress is applied to equilibrate the temperature and strain. The time, strain, stress, and temperature are recorded throughout the process.
Specimen size
Specimen size should be as per the requirements. In this case, the length of the specimen should be a minimum of 1 times the diameter.
Data:
Temperature is maintained at ±3 °C while heating and cooling the specimen. The strain at upper cycle temperature (eUCT)and strain at lower cycle temperature (eLCT) is determined respectively.
Metrology
A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.
Metrology Testing Services POPULAR TESTS:
Materials Testing
ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.
Materials Testing Services POPULAR TESTS:Nondestructive Testing Electrical Testing Chemistry Analysis
Product Testing
Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.
Product Testing Services POPULAR TESTS:ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 is a standard test method for the analysis of sulfochromate etches solution used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
You share material and testing requirements with us
We ensure your sample pick-up in an ensured manner
We deliver test report to your inbox
Just share your testing requirements and leave the rest on us!
