消除部分热应力和相变应力,残余应力也有所降低。
The part of thermal stress is relieved and the residual stress of phase changing is descend.
从唯象观点分析了循环变形期间相变应力和弹性模量的变化。
The change of transformation stress and the modulus of elasticity during cyclic deformation was analyzed from the continuum mechanical point of view.
结果表明:泵体裂纹为相变应力和热应力以及材质冶金质量不高共同作用而产生。
The results show that the cracking of the pump body resulted from the interaction of phase transformation and heat stress, as well as the poor quality of metallurgy.
研究表明在完全循环加载过程中,由于残余应变的存在,马氏体相变应力随循环增加而减小。
The research results show martensite transformation stress decreases with an increase in cycle due to the residual strain during full cyclic loading.
结果表明,激光相变硬化层中的残余压应力是普遍存在的现象。
The experimental results show that the residual compressive stresses existed in the laser hardened case are universal phenomena.
渗层中的相变次序和残余奥氏体的存在对残余应力分布影响较大。
Phase transformation sequence in diffusion layer and the existence of residual austenite have great effect on the distribution of residual stress.
推导了激光相变硬化层的残余应力公式,并对实验结果进行了分析讨论。
The formula of residual stress in laser transformation hardened case is inferred, and the experimental results are discussed.
实测了激光相变硬化区的宽度和深度及残余应力分布。
The width and depth of laser transformation hardening zone and residual stress distribution were measured experimentally.
形状记忆合金利用应力诱发马氏体相变或温度诱发马氏体相变实现形状记忆效应,是一种新兴的功能材料。
Shape memory effect of alloy is obtained by making use of martensitic phase transformation induced by stress or temperature. Shape memory alloy is a new kind of function materials.
同时,在弹性范围内,相变塑性系数也随外加应力增加而增加。
In addition, the parameter of transformation plasticity increases with applied stress.
如果在冷却过程中发生正相变的时候停止冷却并加载,则加载应力-应变曲线只出现应力平台。
If the constrained thermal cycle stopped upon cooling while the forward martensitic transformation was in progress, the loading stress strain curves exhibited the stress plateau immediately.
应力对于马氏体相变有一定的影响。
The stress takes some effects on the martensitic transformation.
表面压应力作用强化了相变增韧效果,改善了材料的表面抗裂纹性能和抗热震稳定性等力学性能。
The R-curve and thermal shock resistance properties are improved and the transformation effect are strengthened by the surface compressive stress effect.
讨论了与冰晶体压力相关的相变温度变化对空间离散系统数值积分和应力计算的影响。
The paper also deals with the influence of pressure variety of ice crystal on temporal integral step-length and calculation of stress-field.
目前对超高压岩石中石英的变形以及在差应力条件下石英-柯石英的相变研究程度低。
Up to now there has been few studies on deformation of quartz in ultra-high rocks and quartz-coesite phase transition at differential stress.
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。
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.
应力诱导相变是主要的增韧机理。
Stress_induced transformation toughening was the main toughening mechanism.
研究了应力对45钢珠光体相变动力学及相变塑性的影响。
The influence of applied stress on the transformation kinetics and transformation plasticity during pearlite transformation of 45 steel has been studied.
晶化处理温度对因热胀系数差异带来的热拉应力因马氏体相变而致的相变压应力均有不同程度的影响。
And the influence of annealing temperature was also found to be caused by the expansion coefficient difference and martensitic transition.
通过焊缝金属相变温度和残余应力测试以及焊接接头疲劳强度试验,分析了焊缝金属相变温度对焊接残余应力和焊接接头疲劳强度的影响规律。
The effect of transformation temperature of weld metal on the residual stresses and the fatigue strength of welded joints is analyzed based on their test.
热动力变质岩带受构造应力集中带控制,是岩石强烈形变与相变的综合体。
All of the dynamothermal metamorphic belts are controlled by the structural stress concentrated zone and they are the complex of the strong deformation and facies change.
通过分析,薄膜内残余应力可认为是相变系数与弹性模量共同作用的结果。
Analysing the result, we know that the residual stress of the films is affected by both the coefficient of phase transformation and elasticity modulus of films.
在考虑了温度、相变及应力的耦合作用的基础上,运用有限元法分析了车轮热处理过程的变形。
Deformation in railway wheel for heat treatment was analyzed with finite element method, in which the coupling of temperature, phase transformation and stress was considered.
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.
结果表明,丝径的减小对丝的相变性能,如最大恢复应变、最大恢复应力等影响不大,但可显著提高其动作频率。
The results show that the decrease of the diameter of a wire can not affect its phase transformation properties, but its work frequency can be increased markedly.
含钒钢因相变开始温度低,其屈服应力快速增加的温度较低。
The yield strength of vanadium bearing steel improves at lower temperature because of low phase transformation starting temperature.
形状记忆合金是近年来研究较多的一种新型功能材料,它是利用应力和温度诱发相变的机理来实现形状记忆功能的。
Shape memory alloy is a new type of functional material studied widely in recent years that usually displays shape memory effect by means of temperature - or stress-inducted phase transformation.
形状记忆合金是近年来研究较多的一种新型功能材料,它是利用应力和温度诱发相变的机理来实现形状记忆功能的。
Shape memory alloy is a new type of functional material studied widely in recent years that usually displays shape memory effect by means of temperature - or stress-inducted phase transformation.
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