The quenching stress and distortion of carburized 20 steel are calculated by finite element.
对2 0钢渗碳后的淬火应力与畸变进行了有限元计算。
The influence of rolling stress towards quenching stress is little, but quenching stress totally changes the original rolling stress.
轧制应力对淬火应力影响很小，淬火应力却彻底改变了原有轧制应力的大小和分布。
The study results are helpful to designing of quenching process and understanding of quenching stress and distortion regularity for complex thin shell.
研究结果有助于复杂薄壁壳体淬火工艺制订及淬火应力和畸变规律的认识。
The ion-implantation damage defects and thermal stress during quenching step are responsible for the formation of dislocations.
位错的形成与离子注入引进的损伤和淬火过程中的热应力有关。
Bearing parts in the process of hardening cooling by internal stress due to the formation of quenching cracks crack said.
轴承零件在淬火冷却过程中因内应力所形成的裂纹称淬火裂纹。
Through the microstructure analysis and residual stress measurement on a quenching test-piece, the feasibility of the numerical simulation is proved.
通过对淬火试件进行金相组织分析和残余应力测量，验证了数值模拟的可行性。
For quenching processes are typical temperature - phase transformation - stress coupled processes, it is quite difficult to precisely predict the processes.
淬火过程是典型的温度-组织转变-应力耦合的过程，准确模拟淬火过程十分困难。
The effect of quenching temperatures on the rate of stress corrosion crack propagation of 4330M steel in distilled water has been investigated.
本文研究了淬火温度对4330M钢在蒸馏水中的应力腐蚀裂纹扩展速率的影响。
The stress produced by quick cooling inside workpiece during quenching treatment is the main reason of quenching deformation.
淬火过程中的快速冷却在工件内部产生的内应力是导致淬火变形的根本原因。
The sensibility of the harden structure of high carbon steel to hydrogen and stress is researched through the tensile test of quenched specimens and charging hydrogen specimens after quenching.
利用高碳钢淬火试样及淬火后充氢试样的拉伸试验，研究了高碳钢淬硬组织对氢和应力的敏感性。
On the basis of the numerical simulation of quenching process, this paper further gives a numerical calculation model of tempering process, emphatically take the stress relaxation into account.
在淬火过程数值模拟基础上，进一步提出了回火过程的数值计算模型，其中着重考虑了应力松弛现象。
Experimental results showed that the service life of die can be improved evidently by using high temperature quenching and stress relief annealing.
实践证明，采用高温淬火和中间消应力退火可显著提高其使用寿命。
Therefore, growing attention has been paid to the study of the emergence and evolution of quenching residual stress in aluminum alloy.
因此，对铝合金淬火残余应力场的产生和演变的研究日益受到人们的重视。
The cyclic strain low cycle fatigue and cyclic stress ratcheting failure of 45 carbon steel treated by quenching and tempering were experimentally investigated.
对调质处理的45碳索结构钢进行了应变循环低周疲劳实验以及应力控制棘轮失效实验。
Heat treatment methods, such as solid solution and quenching, have greatly enhanced its mechanical strength, which also leave a large internal residual stress in it.
固溶、淬火等热处理手段极大地提高了其机械强度，但同时使其内部产生了较大的残余应力。
Therefore, the study of the formation of quenching residual stress and impact factors is extremely important.
因此，研究淬火残余应力的形成及影响因素是极为重要的。
The induction quenching realizes imitated stress strengthening, raises fatigue limit and se…
感应淬火实现了仿应力强化，提高了扭杆的疲劳极限和使用性能。
Results show that both high temperature quenching and step quenching can apparently increase the stress corrosion cracking resistance K_ (ISCC).
结果表明，高温淬火和分级淬火可使应力腐蚀断裂抚力k _ (ISCC)值得到明显提高。
Although the strength and toughness of aluminum alloy 7075 can be increased greatly by quenching, this process will result in large magnitude of residual stress.
通过淬火可以获得高强度、高韧性的铝合金，同时淬火后分布于毛坯中的残余应力幅值很大。
However, stress re-distribution would occur in the non-uniform structural stress introduced by quenching with a low stress gradient.
而淬火引入非均匀的结构应力且梯度较小，主要发生应力重分布。
It is concluded that the local tensile stress created during quenching process and the stress concentration due to sharp V-shaped notch are the primary reasons of cracking.
认为，淬火过程中产生的局部拉应力加上尖锐V型槽口引起的应力集中是造成开裂的主要原因。
Three dimensional nonlinear and isoparameter FEM has been successfully used to simulate the transient temperature field, phase transformation, stress and strain of complex components during quenching.
采用非线性等参元三维有限元算法（FEM）成功地模拟了形状复杂的零件淬火过程中瞬态温度场、相变、应力和应变，获得直观的立体图象。
The quenching process is a complex interactive process of the quenching medium fluid fields with the temperature fields, the structure fields and stress fields of the workpiece that changes with time.
淬火冷却过程是介质流场与工件温度场、组织场和应力场相互作用，并随时间变化的复杂过程。
Moreover, the effect of the latter welding subsection's quenching arc region on decreasing residual stress of the prior welding subsection is better than the striking arc region.
中间焊段的收弧区降低先焊焊段残余拉应力的效果要优于起弧区。
In short, the causes of cracks caused by hardening of these factors may be one or more, the existence of internal stress is the main reason for the formation of quenching cracks.
总之，造成淬火裂纹的原因可能是上述因素的一种或多种，内应力的存在是形成淬火裂纹的主要原因。
Hardness can do 61 — 65hrc maturation process is: annealing, softening after casting machining, machining of air cooling after quenching and low temperature stress tempering.
硬度能做到61——65hrc成熟工艺是：铸造后软化退火，便于加工，加工后空冷淬火加低温去应力回火。
The stress variation in the center is just opposite, and a structural type internal stress state is formed after quenching.
心部的应力变化正好相反，最终形成了组织应力型的内应力分布。
After determining the heat transfer coefficient of oil, the temperature, microstructure and stress variations during quenching were analyzed.
在实测了淬火油换热系数的基础上，对轴对称空心圆柱体淬火时的温度场和组织场进行了模拟。
Computer simulation on complicate shaped parts during quenching process has been realized by using FEM analysis of temperature field phase transformation-stress and strain.
籍助于温度场-相变-应力和应变的有限元分析方法(FEM)，实现了复杂形状工件淬火过程的计算机模拟。
Computer simulation on complicate shaped parts during quenching process has been realized by using FEM analysis of temperature field phase transformation-stress and strain.
籍助于温度场-相变-应力和应变的有限元分析方法(FEM)，实现了复杂形状工件淬火过程的计算机模拟。
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