One of important reasons is that the generation of brittle martensite due to brake sliding of wheels on rails leads to tread damage and its creep.
2
论述了辐照后包壳管在热室中的拉伸、爆破、蠕变等试验方法，比较辐照前后包壳力学性能的变化。
Tensile test, tube burst test and creep test of irradiated cladding in hot cell were discussed. The changes of mechanical properties of cladding before and after irradiation were compared.
3
本文还建立了结晶器内坯壳变形的蠕变力学模型和结晶器铜管变形的热弹性力学模型。
The creep mechanical model of the solidified shell deformation in mold and the heat elastic mechanical model of the mold cupper tube deformation were built too.
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