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- Netty thermal fatigue crack will occurs when two principal stress and two principal plastic strains are approximately equal to each other. 两个主应力的值和两个主塑性应变值相近时出现网状龟裂。
- Thermal fatigue crack initiation and propagation paths of the high-chromi-um, middle Ni-Cr, adamite(165CrNiM.) and 9Cr2 (the forged steel) rollmaterials have been investigated. Thermal fatigue resistance of the four mater-ials has been evaluated. 本文研究高Cr铸铁、中Ni-Cr激冷铸铁、半钢(165CrNiMo)及锻钢(9Cr2)四种热轧辊材料的热裂纹萌生特点和扩展途径,并对四种材料热疲劳抗力进行了评价。
- The results show that the thermal fatigue cracks after forming propagate preferentially in the hard phase, and the propagation of crack is stoped and dulled when it meet steel basic phase. 结果表明:萌生后的热疲劳裂纹优先在硬质相中扩展,遇到钢基体相后受阻、钝化。
- The results show that thermal fatigue cracks initiate at graphite cusps and in the pearlitic matrix and eutectic carbide. 结果表明,热疲劳裂纹在石墨尖端处、珠光体基体及共晶碳化物中萌生;
- The Forming Mechanism of Thermal Fatigue Crack of Steel Bonded Carbide 碳化钨钢结硬质合金热疲劳裂纹形成机理研究
- Simulated Experimental Study on Extension Characteristics of Thermal Fatigue Crack of Cylinder Head 缸盖热疲劳裂纹扩展特点的模拟试验分析
- Effect of Hot Deformation on Dynamics of Thermal Fatigue Crack Propagation in Medium Chromium Semi-Steel 热变形对中铬半钢热疲劳裂纹扩展动力学的影响
- THE EFFECT OF HEAT TREATMENT ON PROPAGATION DRIVE FORCE OF THERMAL FATIGUE CRACK IN 4Cr5MoSiV1 STEEL 热处理对4Cr5MoSiVl钢热疲劳裂纹扩展驱动力的影响
- Keywords HHD steel;electropulsing;thermal fatigue prpperty;thermal fatigue crack; HHD钢;热疲劳裂纹;电脉冲;热疲劳性能;
- Keywords Thermal fatigue crack Pulse current Crack tip passivation Batten martensite; 热疲劳裂纹;脉冲电流;裂尖钝化;板条马氏体;
- thermal fatigue crack 热疲劳裂纹
- High level of resistance to thermal shock and thermal fatigue. 优良的耐热冲击和抗龟裂能力。
- The formation mechanism of thermal shock fatigue crack of cemented carbide YG10 was investigated. 研究了YG10硬质合金热冲击疲劳裂纹的形成机制。
- The flaking do increases and undulates the fatigue crack growth rate. 钢中的白点能增加疲劳扩展速率并使扩展速率发生波动。
- The fractography of the fatigue crack initiation displayed cleavage f... 裂纹形成的断裂为穿晶解理机制,预应变可导致更多的二次裂纹。
- The thickness of coating decreasing the thermal fatigue resistance incr ease. 随涂层厚度减薄,热疲劳抗力增加;
- Study on Characteristic of Thermal Fatigue Cracking Damage of Wheel Casting Steel 车轮铸钢热疲劳裂纹损伤行为研究
- No evidence of fatigue crack extension was detected in the silver Memorial Bridge nor the Fremont Bridge. 在西尔费纪念桥和弗里蒙特桥都没有检查出疲劳裂纹扩展的证据。
- Plenty of oxidation etching pits are found on the surface of the specimen after the thermal fatigue test,and the surface principal crack is prone to propagate through these etching pits. 实验结果发现,试样表面出现大量的氧化腐蚀坑,表面主裂纹优先通过这些腐蚀坑扩展。
- N. Shlyannikov, Z.B. Kuang, F.P. Yang (2004), Surface fatigue crack growth behavior, Russian journal Power Engineering Problems. 杨凤鹏,林卓英(2004),表面裂纹疲劳扩展的试验,北京科技大学学报.