热疲劳

铜合金表面Ni基铸渗层的热疲劳行为研究

The Thermal Fatigue Research of Ni-Based Infiltrated Layer on Copper Substrate

无钴Ti（C，N）基金属陶瓷的热疲劳抗力

The Thermal Fatigue Resistance of Ti ( C , N ) Based Cermets without Cobalt

当热疲劳循环周次超过临界值NC后，裂纹由萌生阶段发展到连续扩展阶段。

When the number of times of thermal fatigue cycle surpasses the critical valve Nc , cracks grow from initiating to continuous propagation .

La对定向凝固Al-4.5%Cu合金热疲劳性能的影响

Effect of La on Thermal Fatigue Property of Unidirectional Solidification of Al-4.5 % Cu Alloy

Ce量为0.3%时的铝铜合金为热疲劳抗力较佳组织。

The Al-Cu alloy with 0.3 % Ce is considered to be with the best thermal fatigue performance .

SG变质剂提高灰铸铁热疲劳性能

Research of SG Modifier Used for Improving the Heat-resistance Fatigue Properties

Al2O（3sf）/ZL109复合材料的热疲劳短裂纹的扩展行为

Short thermal fatigue crack growth of Al_2O_ ( 3sf ) / ZL109 composites

基于Profibus的激光加载热疲劳实验控制系统

Profibus-based control system of laser induced thermal fatigue test

研究了激光熔覆Ni－Al合金涂层及（Ni－Al）＋WC复合涂层的热疲劳性能。

Thermal fatigue properties of laser cladded Ni Al alloy coating and ( Ni Al ) + WC composite coating have been investigated .

PBGA焊点形态参数对热疲劳寿命的影响

The Effects of PBGA Solder Evolving Parameters on Thermal Fatigue Life

Ti3Al基金属间化合物合金热疲劳性能的研究

A Study on Thermal-Fatigue Properties of Ti_3Al-Based Intermetallics

PBGA焊点热疲劳寿命的正交试验及回归分析

The Orthogonal Experiment and Regression Analysis of PBGA Solder Joint Thermal Life

PBGA焊点的热疲劳寿命分析

Thermal fatigue life analysis on the PBGA Solder Joint

利用光镜、电镜及热疲劳试验机对不同变形量的低铬白口铸铁的碳化物形状及其对热疲劳性能的影响进行了探讨。Fatigue预测各种材料全瓷冠的失效概率。

The carbide shape of low chromium white cast iron with different quantity of deformation and it 's effect on thermal fatigue properties were studied by optical microscope , scanning elcctron microscope and thermal fatigue testing machines .

晶界处的Zr元素在热疲劳过程中被消耗掉可能导致了Cr-Zr-Cu合金硬度的下降。

The Zr element on the Grain boundaries are consumed might result in the hardness decreased of the Cr-Zr-Cu alloy .

3Cr2W8V钢的热疲劳及其热疲劳硬化和软化

Thermal-Fatigue and Its Hardening and Softening of 3Cr2_W_8V Steel

应变滞后能损伤与Uddeholm法热疲劳寿命的相关性

The relationship between strain hysteresis energy damage and UDDEHOLM thermal life

当试样经020%（质量分数）稀土变质后经950℃，3h正火处理时，热疲劳性能最佳。

When normalizing is taken at 950 ℃, 3 h after 0 20 % ( mass fraction ) rare earths modification , the best thermal fatigue property is obtained .

分析并揭示TiB2-BN复相导电陶瓷发生潮解的原因；在模拟工况条件下考察试样的热疲劳问题。

The thermal fatigue problems of sample under the imitation operating mode condition were analysed .

结果表明：氩气能有效降低渗层的硬度梯度，提高离子渗氮H13钢的热疲劳性能。

The result shows that the argon gas can effectively decrease the hardness gradient and improve the thermal fatigue behavior of ion nitriding steel H13 .

变质处理后Fe-V-W-Mo-Cr合金热疲劳性能的研究

Study on the Thermal Fatigue Resistances of Fe-V-W-Mo-Cr Alloy Modified by RE-Mg

球形试样热疲劳试验法和T-n-d值

The Test Method of Thermal Fatigue with Spherical Specimen and T-n-d Values

某发动机运行期间，由于不合理的结构设计导致排气歧管关键部位的热疲劳失效，为此采用CFD技术模拟排气歧管工作时的外流场；

The thermal fatigue failure of an engine exhaust manifold happened design during its working because of the incorrect structure . In the paper , the computational fluid dynamic ( CFD ) technology was employed to calculate the external fluid of the exhaust manifold .

而目前对Al-Cu定向凝固合金热疲劳性能的研究进行得很少，系统的研究更加少见报道，因此，本课题具有相当的实际研究价值。

For the moment , we see little of study on the thermal fatigue performance of Al-Cu unidirectional solidification , especially the systemic study . Therefore , this subject has considerable great practical application value .

vf-BGA封装焊球热疲劳可靠性的研究

Solder Joint Fatigue Reliability of vf-BGA Package

通过对CCGA焊点形态参数与热疲劳寿命进行正交回归分析，得出了CCGA焊点形态主要参数与热疲劳寿命之间的关系表达式。

The regression relations between the primary solder joints shape parameters and thermal fatigue life of CCGA are derived through orthogonal experiments and regressions analysis .

所以，如何提高3Cr2W8V钢的韧性和热疲劳性，从而提高模具的使用寿命是一个急需解决的问题。

It is an urgent problem to increase the life of mold by improving the toughness and thermal fatigue resistance .

RTM模腔内温度变化与形变的测试结果表明：模腔内树脂的放热峰可以通过改变固化剂的含量适当调节，模腔表面胶衣及表面层树脂应能承受120℃的热疲劳冲击；

The measuring of temperature change and distortion in RTM moulds shows that the exothermic peak of resin in the cavity can be adjusted through catalyst contents . The cracking and softening of surface resins result in the mould failure .

用Uddeholm热疲劳试验方法，研究了蠕化率对蠕铁热疲劳抗力的影响。

The influence of the vermiculating rate on the thermal fatigue resistance . of vermicular graphite iron is studied with the Uddeholm thermal fatigue testing method .

本文研究了GH36与GH132两种高温合金的高温低周疲劳和热疲劳性能。

In this paper , the performances of elevated temperature low-cycle fatigue and thermal fatigue of two superalloys GH36 and GH132 are discussed .