热处理制度 | σb | σs | δ5 | Ψ | CVN J/m2 |
MPa | % | ||||
880℃油淬,300℃回火 | 1878 | 1621 | 42.8 | 8 | 16.9 |
880℃油淬,400℃回火 | 1682 | 1500 | 38.6 | 10 | 16.7 |
880℃油淬,450℃回火 | 1607 | 1445 | 42.0 | 10 | 17 |
880℃油淬,500℃回火 | 1538 | 1409 | 45.0 | 12 | 20 |
880℃油淬,550℃回火 | 1530 | 1394 | 46.8 | 12.4 | 27 |
880℃油淬,600℃回火 | 1447 | 1357 | 49.0 | 13 | 33.2 |
880℃油淬,650℃回火 | 1311 | 1210 | 51.3 | 15 | 45.6 |
880℃油淬,680℃回火 | 971 | 896 | 60.0 | 20 | 81.5 |
880℃油淬,700℃回火 | 906 | 813 | 61.3 | 19 | 96.3 |
880℃油淬,720℃回火 | 851 | 696 | 59.0 | 23 | 98 |