请帮我翻译下这段

lgddlg

This paper deals with the problem of forging of heavy parts. The stock material for this process has the microstructure of the
casted material, which is characterised by strong inhomogeneity of grains and the presence of pores. This structure is altered
during forging by subsequent processes of plastic deformation and recrystallization. Therefore, the problem of penetration of
plastic deformation inside the forging becomes essential. The general objective of the work is an evaluation of the minimum
reduction of the cross-section of the forging, which still allows the required mechanical properties to be obtained. The research
included both experimental tests and finite-element simulation of the forging process. The tested material was middle carbon steel
containing 0.4% C and 1.3% Mn. The experiments consisted of the measurement of yield stress, tensile strength and hardness for
samples cut from various parts of the forging. The results were compared with the local values of strains and temperatures during
the forging process predicted by the finite-element program. The microstructure evolution models were implemented into the
finite-element code, which allowed the prediction of distributions of grain size in the volume of the forging. Analysis of all the
results allowed conclusions to be drawn regarding a design of forging technology that will guarantee required properties of
forging. © 1998 Elsevier Science S.A. All rights reserved.
Keywords: Forging process; Mechanical properties; Microstructure modelling; Hot deformation

qinsdau

This paper deals with the problem of forging of heavy parts. 此篇文章解决了大件的锻造问题
The stock material for this process has the microstructure of the
casted material, which is characterised by strong inhomogeneity of grains and the presence of pores.此工艺用来加工含有极大不均匀性晶粒及气孔存在的微观结构的锻造原料。
This structure is altered during forging by subsequent processes of plastic deformation and recrystallization.
这种结构形成于其后工序的塑性变形以及再结晶过程。
Therefore, the problem of penetration of plastic deformation inside the forging becomes essential. The general objective of the work is an evaluation of the minimum reduction of the cross-section of the forging, which still allows the required mechanical properties to be obtained.
因此锻造过程中的塑性变形问题变得至关重要。我们要得出获得要求性能所需要的最小截面变化量。
The research included both experimental tests and finite-element simulation of the forging process.
研究包括对锻造过程进行实验验证以及有限元分析仿真
The tested material was middle carbon steel containing 0.4% C and 1.3% Mn. The experiments consisted of the measurement of yield stress, tensile strength and hardness for samples cut from various parts of the forging.
实验材料是C、Mn含量为0.4%C，1.3Mn的中碳钢。试验包括对取自不同锻造零件的试块的屈服强度、抗拉强度及硬度的测量。
The results were compared with the local values of strains and temperatures during the forging process predicted by the finite-element program.
所得结果与通过有限元分析所得的锻造过程中局部张力及温度进行对比。
The microstructure evolution models were implemented into the finite-element code, which allowed the prediction of distributions of grain size in the volume of the forging.
有限元分析方法通过应用微观结构演变的编码实现了预测、仿真锻造过程中晶粒的演变过程。
Analysis of all the results allowed conclusions to be drawn regarding a design of forging technology that will guarantee required properties of forging.
将所有结果进行分析既可以按照所需性能进行工艺设计。
© 1998 Elsevier Science S.A. All rights reserved.
Keywords: Forging process; Mechanical properties; Microstructure modelling; Hot deformation