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corrosion fatigue fracture
相关语句
  腐蚀疲劳断裂
     Investigation of interaction between hydrogen and defects in corrosion fatigue fracture process by positron annihilation
     腐蚀疲劳断裂过程中氢与缺陷相互作用的正电子湮没研究
短句来源
     The result indicated that the springs fail because of corrosion fatigue fracture.
     结果表明,该弹簧断裂为腐蚀疲劳断裂
  “corrosion fatigue fracture”译为未确定词的双语例句
     It comes to the conclusion that the corrosion fatigue fracture of LC4 aluminum alloy is the results of combined action of anodic dissolution, hydrogen embitterment (HE) and mechanical damage.
     LC4铝合金的腐蚀疲劳是阳极溶解、氢脆和机械损伤共同作用的结果。
短句来源
     The corrosion fatigue fracture surface after Q-tempering and double quenched-tempering were investigated by SEM and the corro- sion fatigue mechanisms were discussed.
     用扫描电镜观察了疲劳断口,正常调质后2Cr13钢在80℃,Nacl 水溶液中疲劳源多数由点蚀引起,而双重处理后裂纹源却不一定萌生于蚀坑,它属于点蚀与腐蚀疲劳相叠加的不稳定钝化态腐蚀疲劳。 双重处理后具有较高的点蚀抗力和良好的韧性是腐蚀疲劳强度提高的主要原因。
短句来源
     In clinic, 316L-made implants, especially total hip joints often fail in service due to corrosion fatigue fracture.
     但在临床应用中,由它制成的植入物特别是全髋关节,常因腐蚀疲劳破断而失效.
短句来源
     In corrosive media,corrosion fatigue fracture of reinforcement in bending members also have fracture source zone,fatigue developing zone and fracture zone. Reduction of corrosion fatigue life is the result of combined action of corrosive media and alternate bending tension stress.
     研究表明,在腐蚀介质中,弯曲腐蚀疲劳的钢筋断口同样存在裂纹源区、疲劳发展区和断裂区,钢筋腐蚀疲劳寿命的降低,是腐蚀介质和反复弯曲拉应力共同作用的结果.
短句来源
  相似匹配句对
     Corrosion fatigue
     腐蚀疲劳
短句来源
     Stress Corrosion and Fracture
     论应力腐蚀断裂
短句来源
     Stress Corrosion and Fracture
     论应力腐蚀断裂(续上期)
短句来源
     Fatigue Fracture of the Ulna
     尺骨疲乏骨折
短句来源
     Influence of Severe Surface Corrosion on Pipe Fatigue Fracture
     表面过腐蚀对导管疲劳断裂的影响及腐蚀试验
短句来源
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  corrosion fatigue fracture
The method for estimation of the efficiency of the inhibitor protection against corrosion fatigue fracture proposed earlier in [1] can also be useful for cavitation-erosive fracture.
      
Using electrochemical methods, we investigate a process of corrosion fatigue fracture of stainless steels of various classes and LS59-1 brass in chloride-containing media.
      
The steel used for the implant met the requirements of ASTM Standard F138 but did contain a silica-alumina inclusion that served as the initiation point for a fatigue/corrosion fatigue fracture.
      


This paper studies the influence of the corrosion fatigue properties of 2Cr13 steels after Quenching-tempering and double quenched-tempering in different environment (Concentration of Nacl water solution,temperature,different concentration factor)As it was shown in the paper,the corrosion fatigue resistance of the double quenched tem- pering structure of 2Cr13 steels is the best.The corrosion fatigue fracture surface after Q-tempering and double quenched-tempering were investigated by SEM and the corro-...

This paper studies the influence of the corrosion fatigue properties of 2Cr13 steels after Quenching-tempering and double quenched-tempering in different environment (Concentration of Nacl water solution,temperature,different concentration factor)As it was shown in the paper,the corrosion fatigue resistance of the double quenched tem- pering structure of 2Cr13 steels is the best.The corrosion fatigue fracture surface after Q-tempering and double quenched-tempering were investigated by SEM and the corro- sion fatigue mechanisms were discussed.

本文研究了2Cr13钢在正常调质处理与双重处理(见表2)后,在不同介质条件(大气,水溶液,22%Nacl 水溶液)、不同温度(40℃,80℃)、以及不同应力集中系数(K_1=1.74,K_1=3)下对腐蚀疲劳特性的影响。研究表明,在大气中双重处理比普通调质工艺下的腐蚀疲劳强度(N=10~7)提高7%,在80℃,3%Nacl水溶液中,在与正常调质腐蚀疲劳极限(N=10~7)相同的应力水平下,双重处理后的疲劳寿命可提高两倍以上。用扫描电镜观察了疲劳断口,正常调质后2Cr13钢在80℃,Nacl 水溶液中疲劳源多数由点蚀引起,而双重处理后裂纹源却不一定萌生于蚀坑,它属于点蚀与腐蚀疲劳相叠加的不稳定钝化态腐蚀疲劳。双重处理后具有较高的点蚀抗力和良好的韧性是腐蚀疲劳强度提高的主要原因。

AISI 316L austenitic stainless steel is one of metal implantation materials available. In clinic, 316L-made implants, especially total hip joints often fail in service due to corrosion fatigue fracture. This paper has preliminarily studied the corrosion fatigue crack initiation (CFCI) mechanism of 316L in Hank's solution. In stable passive state,the CFCI mechanism of 316L can be described as synergitic interaction between Hank's solution and micro-plastic deformation induced by alternating...

AISI 316L austenitic stainless steel is one of metal implantation materials available. In clinic, 316L-made implants, especially total hip joints often fail in service due to corrosion fatigue fracture. This paper has preliminarily studied the corrosion fatigue crack initiation (CFCI) mechanism of 316L in Hank's solution. In stable passive state,the CFCI mechanism of 316L can be described as synergitic interaction between Hank's solution and micro-plastic deformation induced by alternating stress;in unstanle passive state,CFCI is accelerated by the superposition of corrosion fatigue and pitting. Ion nitriding surface treatment improves the pitting resistance of 316L in Hank's solution,but it facilitates crack initiation under crucial applied corrosion potential owing to the intergranular corrosion and exfoliation of the nitrided layer.

AISI316L奥氏体不锈钢是较常用的金属植入材料之一.但在临床应用中,由它制成的植入物特别是全髋关节,常因腐蚀疲劳破断而失效.本文对316L不锈钢在Hank’s溶液中的腐蚀疲劳裂纹萌生机理进行了初步研究.结果发现,在Hank’s溶液中,自然钝化的316L不锈钢在稳定钝化态下,裂纹的萌生是由交变应力引起的微观塑性变形和Hank’s溶液交互作用的结果;在有点蚀产生的非钝化态下,裂纹的萌生是点蚀和腐蚀疲劳相叠加的结果.316L不锈钢经离子氮化表面处理后,提高了在Hank’s溶液中的抗点蚀能力,但在外加腐蚀电位的苛刻条件下,困氮化层发生晶间腐蚀和脱落而加速了裂纹的萌生

Two fractured samples one corroded in artificial seawater and the other in air, have been investigated by positron annihilation spectroscopy. Both samples released hydrogen in the temperature regions from RT to 200℃ and from RT to 400℃, respectively. The results indicated that hydrogen enhanced fatigue defects and shielded from positrons localized in defects. From the deep points of the H- T and I2- T curves, it was discovered that hydrogen was released from grain boundary, dislocations and microvoids, respectively....

Two fractured samples one corroded in artificial seawater and the other in air, have been investigated by positron annihilation spectroscopy. Both samples released hydrogen in the temperature regions from RT to 200℃ and from RT to 400℃, respectively. The results indicated that hydrogen enhanced fatigue defects and shielded from positrons localized in defects. From the deep points of the H- T and I2- T curves, it was discovered that hydrogen was released from grain boundary, dislocations and microvoids, respectively. In the first cracking stage grain boundary released more hydrogen than in the second stage. The interaction between hydrogen and microvoids made the volume and number of voids enlarge faster. The binding energies of hydrogen with grain boundary, dislocations and microvoids were estimated. The effect of hydrogen on corrosion fatigue fracture was discussed using da/dN-△K curve and SEM fracture appearance.

用正电子湮没谱研究了40CrNiMo低合金高强钢海水腐蚀疲劳断裂后,低温释氢过程中正电子湮没H参数和寿命参数随温度的变化。实验表明H-T和寿命参数-T曲线有三个极点,分别对应于氢从晶界、位错和微空洞处释出。第一阶段断裂区晶界释氢和位错释氢多于第二阶段区。而微空洞释氢则第二阶段多于第一阶段。晶界与氢相互作用能较有利于氢沿晶界运动,促使氢致开裂沿晶发展。位错与氢相互作用使位错增殖并有利于氢的输运。氢与微洞作用促使微空洞尺寸和数目在几小时内达到并超过空气疲劳200多小时的水平,并促进腐蚀疲劳第二阶段快速断裂。估计了氢与晶界、位错和微空洞的结合能,并结合电镜结果进行了讨论。

 
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