Abstract
The specimens of 45 steel with the quenched crack were treated under electropulsing, SEM was employed to examine the change of specimens before and after the treatment. The results show that the crack can be healed under electropulsing without melting, and the healing of crack can be produced within very short time. The original microstructure of specimens is not changed during the healing. It is thought that the transient thermal compressive stress caused by high-rate heating is an important factor causing the healing of crack.
| Original language | English |
|---|---|
| Pages (from-to) | 43-45 |
| Number of pages | 3 |
| Journal | Jinshu Xuebao/Acta Metallurgica Sinica |
| Volume | 36 |
| Issue number | 1 |
| State | Published - Jan 2000 |
| Externally published | Yes |
Keywords
- Electropulsing
- Healing of crack
- Quenched crack
- Thermal compressive stress
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