| 焊缝金属温预载效应的试验研究 |
| |
| 引用本文： | 马杭,路文江.焊缝金属温预载效应的试验研究[J].理化检验(物理分册),1997,33(1):20-22. |
| |
| 作者姓名： | 马杭 路文江 |
| |
| 作者单位： | 甘肃工业大学 兰州730050 |
| |
| 摘 要： | 通过采用焊络缝金属的带有预纹或缺口的三点弯曲试样进行的正向和反向温预载试验，直接证实了局部残余应力是产生温预载效应的主要原因，并发现试样断口上的解理距离随温预载效应导致的低温韧性的变化而改变。
|
| 关 键 词： | 温预载 残余应力 低温韧性 焊缝 |
AN EXPERIMENTAL RESEARCH ON WARM-PRESTRESSING OF WELD METAL |
| |
| Ma Hang,Lu WenjiangGansu University of Technology.AN EXPERIMENTAL RESEARCH ON WARM-PRESTRESSING OF WELD METAL[J].Physical Testing and Chemical Analysis Part A:Physical Testing,1997,33(1):20-22. |
| |
| Authors: | Ma Hang Lu WenjiangGansu University of Technology |
| |
| Affiliation: | Ma Hang Lu WenjiangGansu University of Technology |
| |
| Abstract: | It was verified in this paper that the local residual stresses is the essential factor resulting in the effect of warm-prestressing through both the positive and the reversing warm - prestressing tests using fatigue pre-cracked and notched three point bending specimens made of a weld metal. It was also found that there is variation of cleavage distances on the fractured surfaces accompanied by the changes of the toughnesses at the low tempera-ture resulting from the warm-prestressing. |
| |
| Keywords: | Warm-prestressing Residual stress Toughness at low temperature Cleavage distance |
| 本文献已被 CNKI 维普 等数据库收录！ |
