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potentials of 7150 Al alloys in 0.1 mol/L Na2SO4+20 mmol/L NaCl solution with different ageing processes 表1 不同时效处理的7150铝合金在60 ℃下4mol/L的NaCl溶液中的应力腐蚀裂纹萌生时间 Table 1 Stress corrosion cracking..., 裴和中. 高强铝合金应力腐蚀研究进展[J]. 中国腐蚀与防护学报, 2008, 28(4): 251-256. DU Ai-hua, LONG Jin-ming, PEI He-zhong. Investigation of stress corrosion cracking of 7xxx series aluminum alloys[J]. Journal of Chinese Society......
Structural Materials and Manufacturing Cooperative Innovation Center, Central South University, Changsha 410083, China) Abstract: Stress corrosion cracking(SCC) resistance of the specimens with different... and grain boundary microstructures. Compared with the coarse grain and equiaxed grain structures, the fiber-like structure exhibits better stress corrosion cracking resistance because of the smaller......
="ChDivSummary" name="ChDivSummary">The stress corrosion of S355 steel in 3.5% NaCl solution under the different strain rates was analyzed with the slow strain rate test(SSRT), the stress corrosion cracking...Effects of Strain Rate on Stress Corrosion of S355 Steel in 3.5% NaCl Solutions金亦富1,SHENG Tianyuan2,KONG Weicheng3,ZHANG Ruihong1,WANG Wenchang4,孔德军21. College of Mechanical Engineering,Yangzhou......
of another high strength alloy AA2219. The general corrosion resistance of these alloys was examined using immersion corrosion and potentiodynamic polarization tests, while the stress corrosion cracking... the alloys. Key words: Al-Cu-Li alloy; stress corrosion cracking; fractography; potentiodynamic polarization 1 Introduction The Al-Cu-Li alloy AA2195 is used in the aerospace industry due to its light......
镍基合金焊接过渡区微观结构及应力腐蚀行为研究侯娟1,彭群家2,庄子哲雄2,王俭秋0,柯伟2,韩恩厚2(1.辽宁省沈阳市科学院金属研究所金属腐蚀与防护国家重点实验室2.日本东北大学 断裂与可靠性研究中心)摘 要:利用微观分析手段深入分析了镍基合金690-52同种金属焊接和镍基182合金-A533B低合金钢异种金属焊接的焊接过渡区微观结构,定量测量了同种金属焊接热影响区(HAZ)残余应变分布,用带缝隙的弯曲横梁样品模拟了异种金属焊接过渡区在高温含氧水中的应力腐蚀开裂(SCC)行为.结果表明,同种金属焊接过渡区的HA......
外加电位对X80钢及其焊缝在库尔勒土壤模拟溶液中SCC行为的影响陈旭1,吴明1,何川1,肖军1(1.辽宁省抚顺市辽宁石油化工大学石油天然气工程学院)摘 要:采用动电位扫描技术和慢应变速率拉伸实验研究了X80钢及其焊缝在库尔勒土壤模拟溶液中的应力腐蚀行为,并利用扫描电镜观察了不同外加电位下的断口形貌.结果表明,X80管线钢及其焊缝在库尔勒土壤模拟溶液中的极化曲线具有典型的活性溶解特征.阳极极化及自腐蚀电位下,裂纹萌生于点蚀坑及夹杂物处,X80钢及其焊缝的开裂机制为阳极溶解;外加电位为-900 mV(vs SCE)......
Trans. Nonferrous Met. Soc. China 31(2021) 2220-2231 Correlations among stress corrosion cracking, grain-boundary microchemistry, and Zn content in high Zn-containing Al-Zn-Mg-Cu alloys Ding... among the corrosion behaviour, grain-boundary microchemistry, and Zn content in Al-Zn-Mg-Cu alloys were studied using stress corrosion cracking (SCC) and intergranular corrosion (IGC) tests, combined......
analyzed by scanning electron microscopy and energy-dispersive spectroscopy, respectively, and the mechanism of LHT on stress corrosion cracking was discussed. Results showed that the fracture...:The surfaces of X80 pipeline steel welded joints were processed with a CO2 laser, and the effects of laser heat treatment(LHT) on H2 S stress corrosion......
:A Electrochemical noise of crack initiation and propagation of AA7075 aluminium alloy during stress corrosion cracking LI Wen-ting1, PAN Ruo-sheng2, ZHAO Wei-hang1, DONG Ze-hua1, 3 (1. School...; 3. School of Chemical and Food Sciences, Hubei Institute of Arts, Xiangyang 433500, China) Abstract: The initiation and propagation process of stress corrosion cracking of AA7075 high strength......
homogenization; microstructure; mechanical properties; stress corrosion cracking 1 Introduction 7N01 aluminum alloys have been widely used in components for high-speed trains due to their excellent extrusion... to the extrusion direction. The stress corrosion cracking (SCC) resistance of the 7N01 aluminum alloy was measured using the slow strain rate test (SSRT) method according to ASTM G 129. Specimens were......