Abstract
In contrast to their silent cracking behavior at room temperature the austenitic stainless steels are highly active acoustically during deformation and fracture at 4 K. Acoustic emission is promoted by low temperature strengthening and by discontinuous plastic flow in ductile alloys near absolute zero. The prospects are consequently good for acoustic emission monitoring as a tool in studying austenitic steels at cryogenic temperatures. This paper illustrates some potential applications in mechanical property determinations and presents test results acquired for two steels, Fe-18Cr-3Ni-13Mn, AISI 310S WM, and a shielded metal arc weld of AISI 310S BM, submerged in liquid helium. A monitoring apparatus is also described.
| Original language | English |
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| Title of host publication | Advances in Cryogenic Engineering |
| Publisher | Publ by Plenum Publ Corp |
| Pages | 387-395 |
| Number of pages | 9 |
| Volume | 34 |
| ISBN (Print) | 0306428016 |
| Publication status | Published - 1988 Dec 1 |
| Event | Proceedings of the Seventh International Cryogenic Materials Conference - ICMC - St. Charles, IL, USA Duration: 1987 Jun 14 → 1987 Jun 18 |
Other
| Other | Proceedings of the Seventh International Cryogenic Materials Conference - ICMC |
|---|---|
| City | St. Charles, IL, USA |
| Period | 87/6/14 → 87/6/18 |
ASJC Scopus subject areas
- Engineering(all)