The U-notch specimens were used to investigate the fatigue crack initiation life of X60 pipeline steel after pre-tension straining with ductile deformation of 5%,10% and 15%.
采用U型缺口试样研究了X60管线钢经5%、10%和15%的预拉伸应变后的疲劳裂纹形成寿命。
The process of crack initiation and propagation was observed through replication,and the effect of grain size on the behaviour of short fatigue cracks was studied.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
The thermal fatigue crack initiation and propagation characteristics of Al-Matrix Composites Vol.
在室温25℃~360℃自约束型热循环条件下,研究SiC增强颗粒体积分数为20%的铝基复合材料SiCp/A356的热疲劳裂纹形成与扩展特性,并且探讨了复合材料热疲劳裂纹的形成机制和扩展过程。
A stress field intensity function, which reflects effect of the equivalent stress at perilous point and that of the stresses and its gradient within the damage area on crack formation, is presented.
以应力场强法为基础，研究非对称缺口构件的裂纹形成部位和寿命，提出了应力场强函数σＦＤ，σＦＤ该函数既考虑了危险部位处的应力值，又考虑了其附近损伤区的应力和应力梯度对裂纹形成的贡献。
This paper presents the extensive experimental research on the sensitive influencing factors for the crack formation during high power laser cladding of NiCrSiB alloy by powder feeding.
用 4 5k W高功率激光器对 Ni Cr Si B合金在送粉激光熔覆下裂纹形成的材料成分、熔覆工艺、微观组织等因素进行研究。
Results show that the distributions of short crack initiation and growth life can be expressed by two or three parameter Weibull distribution.
通过对两种晶粒尺寸的中碳钢光滑试样的疲劳试验，研究了疲劳短裂纹形成和扩展的统计特性。
Mechanism of Crack Formation During Continuous Casting of Peritectic Steel Slabs
包晶钢铸坯裂纹形成机理的实验研究
THE IMPACT OF NONMETALLIC INCLUSION ON GENERATION OF FORGING CRACK
非金属夹杂物对锻造裂纹形成的影响
Analysis on Hot Crack for Forging Die Made by Squeeze Casting
锻模液态模锻成形过程中热裂纹形成原因分析
Study on Crack Initiation Mechanism and Propagation Behavior of Asphalt Pavements;
沥青路面裂纹形成机理及扩展行为研究
The Numerical Simulation of the Crack Generation during the Extrusion of SiC_W/6061Al Composites;
SiC_W/6061Al复合材料挤压裂纹形成的数值模拟
Research on Mechanics of Crack and Sensibility to Gas Cavity by TIG Welding for Magnesium Alloys;
镁合金TIG焊裂纹形成机理及气孔敏感性研究
Study on Crack Forming during Hot-charging and Improving of the Medium and Heavy Plate;
中厚板热装热送过程裂纹形成及改善的研究
Predicting Fatigue Crack Initiation Lives of Compenents by Using Damage Mechanics
损伤力学方法预估构件的疲劳裂纹形成寿命
Study on Forming Mechanism of Hot Charging Cracks in C-Mn-Si Low-alloyed Steel
C-Mn-Si系低合金钢热装裂纹形成机理研究
Research of Surface Crack on Phosphor Bronze Strip Produced by Horizontal Continuous Casting
水平连铸锡磷青铜表面裂纹形成原因及探究
Microstructure and Crack Formation in K418 Alloy Laser Welded Joints
K418合金激光焊接接头组织与裂纹形成原因
Investigation on Elements Responsible for Development of External Surface Cracks of Drill Pipe Body in Steel X95
X95钢级钻杆管体外表面裂纹形成原因分析
Causes and Controlling Measures of Continuous Cast Slab Surface Crack
连铸板坯表面裂纹形成原因及控制措施
THE THERMORHEOLOGICAL FRACTURE RESEARCH ON THE FORMATION OF INITIAL SURFACE CRACKS AT THE SINGLE BUTTRSS DIAMOND DAM
单支墩大头坝初始表面裂纹形成的热流变断裂学研究(英文)
develop a fine network of cracks.
形成一个网状的裂纹。
The formation of cracks on the surface of paint layers.
油画层皱裂油画表层裂纹的形成
ON THE FORMATION MECHANISM OF INTERNAL AND SURFACE CRACKS OF CONTINUOUSLY CAST SIABS
连铸板坯内部裂纹和表面裂纹的形成机理
The nucleati-on, growth and connection of fatigue cracks were photographed.
拍摄了热疲劳裂纹的形核、成长、连接过程。