Nondestructive evaluation of stresses within AISI stainless steel 304 material -- A magnetometric approach
- Government of India, Ahmadabad (India). Dept. of Space
Stainless steel is widely used industrial material and also used in fabrication of satellite components. The use of optimum section of components calls for Non-Destructive Evaluation of structure to avoid catastrophic failures which are predominantly due to the high stress level. The effect of cold working and/or stress on the magnetic properties of stainless steel was discussed in the past. An attempt is made in present work to correlate the induced magnetic flux density in stainless steel AISI-304 with the stress level. In the present work, various samples of stainless steel were prepared for experiment after confirming the material belongs to AISI-304 by detailed chemical and physical analysis. These samples were also heat treated at 1,066 deg. C. to eliminate presence of initial stresses and obtain austenitic structure. Stresses in identical samples were generated by torsional deformation and induced magnetic flux density were measured in a very well configured test set up which has the resolution of 1 nT (nano-tesla). Finally, a correlation is presented between the induced magnetic flux density and stress level which could be very helpful tool in non-destructive evaluation of stresses in stainless steel AISI-304.
- OSTI ID:
- 207964
- Report Number(s):
- CONF-9510265-; ISBN 1-57117-013-8; TRN: IM9616%%292
- Resource Relation:
- Conference: 1995 American Society for Nondestructive Testing (ASNT) fall conference and quality testing show, Dallas, TX (United States), 16-20 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of ASNT 1995 fall conference and quality testing show: NDT -- The lone star of quality; PB: 204 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Studies on the influence of metallurgical variables on the stress corrosion behavior of AISI 304 stainless steel in sodium chloride solution using the fracture mechanics approach
Study of Mechanical Properties, Microstructure, and Residual Stresses of AISI 304/304L Stainless Steel Submerged Arc Weld for Spent Fuel Dry Storage Systems