英语翻译4.Conclusions 1.A two-dimensional thermo-mechanical finite element model was developed,and applied to thecladding of C95600 on AA333.Since the film has a lower coefficient of thermal expansion thanthe substrate,the latter was found to be

英语翻译4.Conclusions 1.A two-dimensional thermo-mechanical finite element model was developed,and applied to thecladding of C95600 on AA333.Since the film has a lower coefficient of thermal expansion thanthe substrate,the latter was found to be
英语翻译
4.Conclusions
1.A two-dimensional thermo-mechanical finite element model was developed,and applied to the
cladding of C95600 on AA333.Since the film has a lower coefficient of thermal expansion than
the substrate,the latter was found to be predominantly in tension and the former in compression.
2.The maximum values found for the longitudinal stress are,for both materials,about 65% of the
yield stress at room temperature.
3.Stresses are concentrated at the interface between the clad and the substrate.
4.Although the material models that were utilized are simple,the Finite Element model that was
developed is still expected to provide reasonable insight into the stress fields that develop in laser
cladding.This can be a very useful tool,for instance,in predicting failure behavior of laser cladded
materials.
5.This model can also be used in the following way:a parametric study based on the temperature
field can be undertaken,in order to define ranges of process parameters that are expected to lead to
successful cladding operations.Then,within those ranges,values of parameters (e.g.laser power
and scanning speed) that minimize the residual stresses can be determined.The stresses are
expected to depend indirectly on the process parameters through their dependence,e.g.,on total
plastic strain (which depends on interaction time) and thermal strain (which depends on the
temperature distribution).

英语翻译4.Conclusions 1.A two-dimensional thermo-mechanical finite element model was developed,and applied to thecladding of C95600 on AA333.Since the film has a lower coefficient of thermal expansion thanthe substrate,the latter was found to be
4、结论
1.通过二维有限元模型,并将其应用于在AA333的C95600覆层.因为薄膜比底物具有更低的热膨胀系数,后者被发现主要在张力和前在压缩.
2.发现的最大价值纵向应力越富有,因为这两者都材料,大约65%的在室温下屈服应力.
3.应力集中之间界面的穿衣和底物.
4.尽管这种材料模式,这种模式是利用是简单的有限元模型,对那是发展还将提供合理的洞察应力场发展激光熔覆.这能是一个非常有用的工具,例如,在预测激光cladded破坏特性材料.
5.该模型也可以应用于以下方式:参数研究基于温度领域中会承受范围内,以确定工艺参数的是,希望导致成功的熔覆操作.然后,在这些范围内效果显著的、高价值的参数(如激光电源最大限度地减少扫描速度),可以确定的残余应力.应力是预计在工艺参数依赖间接通过他们的依赖,如在总数
(这要视塑性应变相互作用时间)和热应变(取决于温度分布).