陈商豪,何青辉,张晨伟,甄崇,罗利佳,包士毅.金属材料高温蠕变-疲劳试验方法综述[J].高技术通讯(中文),2025,35(4):440~450 |
金属材料高温蠕变-疲劳试验方法综述 |
Review of creep-fatigue test methods for metal materials at high temperature |
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DOI: |
中文关键词: 金属材料; 蠕变-疲劳; 试验标准; 混合控制; 弹性随动 |
英文关键词: metallic material, creep-fatigue, testing standard, hybrid-control, elastic follow-up |
基金项目: |
作者 | 单位 | 陈商豪 | (浙江工业大学化工机械设计研究所杭州 310023)
(浙江工业大学过程装备及其再制造教育部工程研究中心杭州 310023)
(浙江工业大学机械工程学院杭州 310023) | 何青辉 | | 张晨伟 | | 甄崇 | | 罗利佳 | | 包士毅 | |
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中文摘要: |
蠕变-疲劳试验用于评价材料抵抗蠕变-疲劳失效的能力。目前国内外都制定了金属材料蠕变-疲劳试验标准。本文首先选取GB/T 38822-2020和ASTM E2714-13(2020)这2项标准进行对比,结果表明,这2项标准在试验设备、试验过程、试验报告、残余应力的处理及试验环境等方面的要求基本一致,而在试样尺寸和试样失效判断依据上存在差别。随着高温部件的应用愈加广泛,标准的蠕变-疲劳试验已无法满足工程实际需求。因此对标准的蠕变-疲劳试验进行了改进,提出了混合控制的蠕变-疲劳试验和考虑弹性随动的蠕变-疲劳试验,虽然试验方法还需改进,但试验结果已证明了方法的可行性。 |
英文摘要: |
Creep-fatigue test is used to evaluate the ability of materials to resist creep-fatigue failure. At present, the creep-fatigue test standards of metal materials have been formulated at home and abroad. This paper firstly compares GB/T 38822-2020 and ASTM E2714-13(2020). The results show that these two standards have roughly the same requirements in terms of test equipment, test process, test report, residual stress treatment and test environment, but there exist differences in sample size and sample failure judgment basis. With the wide application of high temperature components, the improved creep-fatigue test cannot meet the practical demand of engineering. Therefore, the improved creep-fatigue test is conducted, and a creep-fatigue test with hybrid-control and the corresponding creep-fatigue test considering the elastic follow-up are proposed. Although the test method needs to be improved, the feasibility of the method has been proved. |
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