| 1. | 60si2mn steel helical springs metallographic test
60si2mn钢螺旋弹簧.金相检验 |
| 2. | Metallographic test for spheroidal graphite cast iron
球墨铸铁金相检验 |
| 3. | Metallographic test for value seat of internal combustion engines
内燃机.气门座.金相检验 |
| 4. | In the end of the dissertation , the lifetime of the experimental superheater and reheater tubes that have been used is evaluated by the methods of sress computation and the metallographic tests
最后，根据上述持久强度外推分析法、金相试验研究综合评估了截取在役的过热器和再热器管材的寿命。 |
| 5. | In the end of the dissertation , a tube lifetime evaluation software system is developed with the utility of the finite element analysis stress computation and the metallographic tests . the lifetime of the platen superheater tube is evaluated by the software system
最后，综合以上应力解析法、有限元应力计算和余相试验研究开发了管件寿命评估软件系统，并使用该系统综合评估了屏式过热器管段的寿命。 |
