Accumulation of stress in constrained assemblies: novel Satoh test configuration

作者：Shirzadi A A^*; Bhadeshia H K D H

来源：Science and Technology of Welding and Joining, 2010, 15(6): 497-499.

DOI：10.1179/136217110X12731414739998

• Satoh test
• Residual stress
• Welding alloys
• steels

A common test used to study the response of a transforming material to external constraint is due to Satoh and involves the cooling of a rigidly constrained tensile specimen while monitoring the stress that accumulates. Such tests are currently common in the invention of welding alloys which on phase transformation lead to a reduction in residual stresses in the final assembly. The test suffers from the fact that the whole of the tensile specimen is not maintained at a uniform temperature, making it difficult to interpret the data. To eliminate this problem, the authors report here a novel Satoh test in which the material investigated is a part of a composite sample. It is demonstrated that this helps avoid some of the complications of the conventional tests and gives results which are consistent with independent tests.

• 出版日期2010-8