{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"采用粉末冶金法制备了SiC颗粒增强铝基梯度复合材料,研究了其<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为及其亚临界<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为.<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>从30%SiC层向5%SiC层<span style=\"color:red\">扩展</span>时,发生了<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>延滞;而在静载下,当<span style=\"color:red\">裂纹</span>从30%SiC层向5%SiC层<span style=\"color:red\">扩展</span>时,随着<span style=\"color:red\">裂纹</span>长度的增加其<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>阻力增大.","authors":[{"authorName":"许富民","id":"88fb84ee-a174-47bc-b4f9-c8a6ef1c0386","originalAuthorName":"许富民"},{"authorName":"朱世杰","id":"5b5c5dbe-bc6b-4899-b1a8-242609edaca2","originalAuthorName":"朱世杰"},{"authorName":"赵杰","id":"6d8730ed-6907-4280-a97b-ddc47fe2da4a","originalAuthorName":"赵杰"},{"authorName":"王富岗","id":"a0fc4388-b223-4c5d-ba3f-265d89ebb636","originalAuthorName":"王富岗"}],"doi":"10.3969/j.issn.1001-4381.2003.10.004","fpage":"11","id":"43d20ba3-401c-4147-8e71-fa7c35ba3254","issue":"10","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"81e8a59b-83bc-4cd4-8826-fd387ea6f52d","keyword":"梯度材料","originalKeyword":"梯度材料"},{"id":"a7a725df-3b16-43a0-a60f-0021dbfecb0e","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"0ae28fe1-bce2-4d82-945b-d9c04116d3a3","keyword":"延滞","originalKeyword":"延滞"},{"id":"ecf12ac7-c456-4ff1-ab9e-b49cd2362c3c","keyword":"R曲线","originalKeyword":"R曲线"}],"language":"zh","publisherId":"clgc200310004","title":"SiCp/Al梯度复合材料<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>和亚临界<span style=\"color:red\">扩展</span>行为","volume":"","year":"2003"},{"abstractinfo":"运用电子背散射衍射(EBSD)分析技术对2124-T851铝合金板材的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>进行了分析研究.结果表明,<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>以穿晶为主,随晶粒取向的不同而呈现一定的择优性.当<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>到晶界时,由于相邻晶粒间存在的取向差,<span style=\"color:red\">裂纹</span>会偏离其正常<span style=\"color:red\">扩展</span>路径而发生偏转,而晶内的<span style=\"color:red\">裂纹</span>偏转则更多是因为粗大第二相粒子在循环应力作用下协调变形能力差引起的.<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>过程中发生<span style=\"color:red\">裂纹</span>分叉与特定的晶体学方向有关,是由于<span style=\"color:red\">裂纹</span>尖端多个等效{111}<110>滑移系的同时开动造成的.","authors":[{"authorName":"蹇海根","id":"af63685f-70f5-416c-9bbb-1009b70cdfb7","originalAuthorName":"蹇海根"},{"authorName":"尹志民","id":"fd4bf4db-a686-4d56-9cd9-23b6cd55a35d","originalAuthorName":"尹志民"},{"authorName":"姜锋","id":"e46153ba-a3e3-4d31-ac9e-45939f35a1cd","originalAuthorName":"姜锋"},{"authorName":"李雪","id":"8f0932ba-d011-4d26-9182-a2cc0cb65441","originalAuthorName":"李雪"}],"doi":"","fpage":"1332","id":"c126cee0-e194-4c1e-9de5-deb72e837827","issue":"6","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"9ae1bf73-4a45-4e2d-b5ca-03200e8f842e","keyword":"2124铝合金","originalKeyword":"2124铝合金"},{"id":"d6146029-1b52-47cf-8537-541dcdf9a51e","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"e71a7e9f-c157-4ec4-8baf-00d4b1bbf9a7","keyword":"微取向","originalKeyword":"微取向"},{"id":"48dff841-2ec4-4ce3-8a96-592951818b38","keyword":"背散射电子衍射","originalKeyword":"背散射电子衍射"}],"language":"zh","publisherId":"xyjsclygc201406012","title":"2124铝合金<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的EBSD分析","volume":"43","year":"2014"},{"abstractinfo":"文中采用CT(Compact Tension)试样对MDYB-3有机玻璃在-50℃～90℃范围内进行了<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>试验研究.基于金属<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>公式,结合有机玻璃<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>特性,得到了描述有机玻璃<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为的公式.将其与有机玻璃在不同温度下的试验结果对比,发现得到的公式能够较完整地描述有机玻璃<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>在各个阶段的<span style=\"color:red\">扩展</span>行为.","authors":[{"authorName":"高宗战","id":"f6dd8976-0eed-46a1-99ee-7692a11e7c14","originalAuthorName":"高宗战"},{"authorName":"刘伟","id":"7abf33de-a6d3-4a29-925d-a4ed731d6508","originalAuthorName":"刘伟"},{"authorName":"岳珠峰","id":"a82a2014-e36a-45cc-b0f7-7f7d7f32f974","originalAuthorName":"岳珠峰"},{"authorName":"杨治国","id":"389962f9-33f3-4423-9378-b727188f1c95","originalAuthorName":"杨治国"}],"doi":"","fpage":"90","id":"5bd9542d-4014-467f-91d8-cfd364e7a544","issue":"1","journal":{"abbrevTitle":"CLKXYGCXB","coverImgSrc":"journal/img/cover/CLKXYGCXB.jpg","id":"13","issnPpub":"1673-2812","publisherId":"CLKXYGCXB","title":"材料科学与工程学报"},"keywords":[{"id":"92faab34-c906-4ca1-bda8-23ed60e33efc","keyword":"有机玻璃","originalKeyword":"有机玻璃"},{"id":"0336a214-a82c-4a7e-abee-66d1eb0d67be","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"ad3a127c-5ccd-4c3c-9084-f50816dd737d","keyword":"门槛值","originalKeyword":"门槛值"},{"id":"0b95fca7-9e42-4c4c-9c54-581c9e7c1c4f","keyword":"应力强度因子","originalKeyword":"应力强度因子"},{"id":"1435696f-87e0-4750-90b3-4bc9ed50ac53","keyword":"断裂韧性","originalKeyword":"断裂韧性"},{"id":"115b3a84-8231-4348-835b-801e9d957b95","keyword":"温度","originalKeyword":"温度"}],"language":"zh","publisherId":"clkxygc200801023","title":"有机玻璃<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","volume":"26","year":"2008"},{"abstractinfo":"温度、载荷频率和应力比是影响材料<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为的主要因素.发展相关理论和方法,正确认识影响机理,科学预测<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为一直是人们追求的目标.本文介绍了近几十年来在温度、载荷频率和应力比对材料<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为的影响机理方面的研究进展,其中对应力比的影响进行了详细的介绍,指出了常用理论的不足,对新的研究方法进行了论述.","authors":[{"authorName":"高文柱","id":"a92a0aa4-68b6-4948-8d42-6ddba855e1c9","originalAuthorName":"高文柱"},{"authorName":"吴欢","id":"a0d69d0d-2664-45d9-949a-4467448d50b5","originalAuthorName":"吴欢"},{"authorName":"赵永庆","id":"3d065755-b068-4940-90d2-18f0e29a8172","originalAuthorName":"赵永庆"}],"doi":"10.3969/j.issn.1009-9964.2007.06.005","fpage":"33","id":"ec1ed966-0a18-4442-84f8-f82bd2a34e89","issue":"6","journal":{"abbrevTitle":"TGYJZ","coverImgSrc":"journal/img/cover/TGYJZ.jpg","id":"60","issnPpub":"1009-9964","publisherId":"TGYJZ","title":"钛工业进展"},"keywords":[{"id":"68d1fe7b-400f-4787-a49b-f113852bb091","keyword":"温度","originalKeyword":"温度"},{"id":"3920fbd6-b162-4cb1-abd1-2fc5f1a7e4ae","keyword":"载荷频率","originalKeyword":"载荷频率"},{"id":"0e6a5cbb-1693-43f2-8b91-7692a144abd5","keyword":"应力比","originalKeyword":"应力比"},{"id":"5bfe629e-7c27-46fa-b441-21d0fab07cd1","keyword":"理论","originalKeyword":"理论"},{"id":"1de95332-9cee-4600-a3aa-a16a045beb95","keyword":"方法","originalKeyword":"方法"},{"id":"160d9921-ec4f-4a54-9854-7ae964f18e62","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"}],"language":"zh","publisherId":"tgyjz200706005","title":"金属材料<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>研究综述","volume":"24","year":"2007"},{"abstractinfo":"以电解铝硅钛中间合金为主要原料,熔炼与ZL101A合金成分基本相同的合金AST101.对比研究了AST101和ZL101A合金的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为.在应力比R=0.1和0.5的试验条件下,AST101合金的抗<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>能力不如ZL101A合金.金相分析表明,AST101合金的铁含量较高,在合金中形成了脆性针状富铁相,该相自身的断裂和与基体的脱粘促进了合金<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>的<span style=\"color:red\">扩展</span>.此外,AST101合金的微观组织特性影响了<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>的闭合程度,也降低了合金的抗<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>能力.","authors":[{"authorName":"王明星","id":"3a37c1e7-80c1-4fb0-a0c6-3c515a9b9a7e","originalAuthorName":"王明星"},{"authorName":"刘志勇","id":"f418723e-81d7-41d7-8a0f-3a1bb4832b98","originalAuthorName":"刘志勇"},{"authorName":"翁永刚","id":"d430fe05-7b67-46d3-a2ae-b68c6479fd7d","originalAuthorName":"翁永刚"},{"authorName":"宋天福","id":"80c99116-8176-48d5-bdf3-16f9df1f016b","originalAuthorName":"宋天福"},{"authorName":"霍裕平","id":"e3014099-da45-46ce-8aba-515de9857f76","originalAuthorName":"霍裕平"},{"authorName":"谢敬佩","id":"10b1a71e-4d19-4a9e-9aad-c3cd07a6729d","originalAuthorName":"谢敬佩"}],"doi":"10.3969/j.issn.1000-3738.2003.01.014","fpage":"47","id":"23eb9a97-e216-4030-b37f-f01e0cdecf5a","issue":"1","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"a35e0269-9d67-4801-bc75-ce618a1420c8","keyword":"铝硅合金","originalKeyword":"铝硅合金"},{"id":"2416486c-1bd9-41d0-a118-96abd2780818","keyword":"富铁相","originalKeyword":"富铁相"},{"id":"c94dc53f-4b47-4f4f-b378-4bb256a12e41","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"}],"language":"zh","publisherId":"jxgccl200301014","title":"铝硅钛合金<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为研究","volume":"27","year":"2003"},{"abstractinfo":"<span style=\"color:red\">疲劳</span>性能是粉末冶金铝合金一项重要的使用性能,研究<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为是研究<span style=\"color:red\">疲劳</span>性能的一种重要的方法.总结了影响粉末冶金铝合金<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率的各种外部因素和内部因素,外部因素主要包括应力比、温度、制备方法等,内部因素有晶粒尺寸、夹杂物、铝基复合材料中的增强相颗粒等,并详细阐述了这些因素的影响机制.","authors":[{"authorName":"陈鼎","id":"bf1c4112-279b-4856-b151-9d4f0bb0df7b","originalAuthorName":"陈鼎"},{"authorName":"张倩霞","id":"0855d6d5-ed8b-4d6d-a1f2-5f6a36d984e1","originalAuthorName":"张倩霞"},{"authorName":"宁荣","id":"9547b08d-2ae4-49af-acd3-6fbab4214f71","originalAuthorName":"宁荣"},{"authorName":"陈振华","id":"b3b66d21-62e4-4d69-b74e-90a4998307e0","originalAuthorName":"陈振华"}],"doi":"10.11896/j.issn.1005-023X.2014.17.002","fpage":"10","id":"b3d2715c-91f8-4365-8cb9-6dfd83fff8d5","issue":"17","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"025710cb-b0dd-4d54-8689-45833cb57de6","keyword":"粉末冶金","originalKeyword":"粉末冶金"},{"id":"3930eba7-0a20-4cf7-851f-150cecdecbf1","keyword":"铝合金","originalKeyword":"铝合金"},{"id":"f0388eaf-4e00-4ae4-ad54-50e062d0b491","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"}],"language":"zh","publisherId":"cldb201417002","title":"粉末冶金铝合金的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为","volume":"28","year":"2014"},{"abstractinfo":"采用SEM,TEM及<span style=\"color:red\">疲劳</span>性能测试等分析测试手段,系统地研究了2E12 铝合金在室温空气、潮湿气体及盐雾环境下的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率.结果发现2E12合金具有良好的<span style=\"color:red\">疲劳</span>性能,<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率优于国外的2524铝合金.利用修正的Paris公式分析腐蚀介质对合金的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>性能影响轻重程度依次为:室温空气《潮湿气体《盐雾环境.不同环境条件下合金的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>形貌均表现微观<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的晶界小平面、宏观<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的<span style=\"color:red\">疲劳</span>条纹以及剪切撕裂的微观结构.在腐蚀环境下,宏观<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>表现出更多的脆性<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>特征,氢脆导致塑性区脆化及腐蚀诱导的阳极溶解是导致<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>性能降低的原因.","authors":[{"authorName":"杨胜","id":"afb07803-e4fa-4fc4-9298-96ca39a505ad","originalAuthorName":"杨胜"},{"authorName":"易丹青","id":"95ab6277-93e3-4b6e-85b3-d4cc6e796ff4","originalAuthorName":"易丹青"},{"authorName":"杨守杰","id":"3d36f212-f38d-46ca-b95f-8452dc9bc6f6","originalAuthorName":"杨守杰"},{"authorName":"钟利","id":"7c2c4034-1318-4584-ab5e-131a1618b66b","originalAuthorName":"钟利"}],"doi":"10.3969/j.issn.1001-4381.2007.12.006","fpage":"26","id":"e84b50db-49a4-43eb-8ca2-5ee8aaa8d266","issue":"12","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"3845bd4e-6305-4e4f-90f6-0c291d7035fe","keyword":"2E12铝合金","originalKeyword":"2E12铝合金"},{"id":"3635749e-b567-4c89-bebd-6355a86d80cf","keyword":"腐蚀","originalKeyword":"腐蚀"},{"id":"cd552214-2a54-4dc6-a75b-6f16d21f0fd5","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"b994eea4-1e71-4c93-8e9c-c5dfcb321084","keyword":"氢脆","originalKeyword":"氢脆"}],"language":"zh","publisherId":"clgc200712006","title":"腐蚀环境下2E12航空铝合金<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为研究","volume":"","year":"2007"},{"abstractinfo":"对300M钢在空气和质量分数3.5%NaCl水溶液中分别进行了<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率试验,得到了其<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率-应力强度因子范围曲线,并分别利用Paris公式和Walker公式对曲线进行了拟合;分析了应力比、腐蚀环境、频率对<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率的影响.结果表明:300M钢的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率随应力比的增加而增大;在相同应力比下,300M钢在NaCl水溶液中的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率在<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>前期比在空气中的快,在<span style=\"color:red\">扩展</span>后期则趋于一致;较低试验频率下300M钢在<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>前期的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率比在较高频率下的快.","authors":[{"authorName":"盛伟","id":"3b959aca-7c23-47b4-8cf2-3ae373dab6bd","originalAuthorName":"盛伟"},{"authorName":"刘天琦","id":"6c1ccf81-c81b-4145-8ef1-e84835f38a57","originalAuthorName":"刘天琦"},{"authorName":"马少俊","id":"2c848ff5-996e-4b59-b0f5-87affab9fa5c","originalAuthorName":"马少俊"},{"authorName":"陈天运","id":"142005c2-5c32-4921-aaeb-1103f17c23b1","originalAuthorName":"陈天运"}],"doi":"10.11973/jxgccl201706005","fpage":"17","id":"30f8e5b0-8045-47eb-b91d-ce9f0cd1b2e1","issue":"6","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"5a4e6205-43a9-4d71-bed4-6366842a693b","keyword":"300M钢","originalKeyword":"300M钢"},{"id":"e28b8d98-b3c6-43bb-976e-5f11d1a64126","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"5623ceae-8871-4b46-9e98-b14d37128e94","keyword":"应力比","originalKeyword":"应力比"},{"id":"73738b36-999d-44a8-aa5c-a56791d0f706","keyword":"腐蚀<span style=\"color:red\">疲劳</span>","originalKeyword":"腐蚀疲劳"}],"language":"zh","publisherId":"jxgccl201706005","title":"不同条件下300M钢的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>行为","volume":"41","year":"2017"},{"abstractinfo":"用紧凑拉伸试样研究了不同应力比和超载比对X52管线钢<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率的影响,并对<span style=\"color:red\">疲劳</span>断口形貌进行SEM分析.结果表明,拉伸超载有阻滞X52钢<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的作用,使<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>由超载<span style=\"color:red\">扩展</span>,减速<span style=\"color:red\">扩展</span>和恢复<span style=\"color:red\">扩展</span>三个阶段组成.在恒定的应力比下,超载比越大,<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的阻滞效应也越明显.超载前后形貌差别越大;在恒定超载比下,低应力比的<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>阻滞现象更明显.","authors":[{"authorName":"","id":"15eb6268-da90-4d9b-bc9e-6c6ce810f4db","originalAuthorName":""},{"authorName":"陈迎锋","id":"a25bf538-3081-4743-8367-a325e03fae62","originalAuthorName":"陈迎锋"},{"authorName":"","id":"3c7df8bf-1ace-4d85-9f52-b50e253a6851","originalAuthorName":""}],"doi":"","fpage":"123","id":"6ffa50eb-e053-455a-a532-7bd2c94da958","issue":"4","journal":{"abbrevTitle":"CLRCLXB","coverImgSrc":"journal/img/cover/CLRCLXB.jpg","id":"15","issnPpub":"1009-6264","publisherId":"CLRCLXB","title":"材料热处理学报"},"keywords":[{"id":"8ef864a6-60b2-4401-8eaf-22e460d2e441","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"427cebb5-eaad-451b-85ec-f5eace938d1a","keyword":"超载比","originalKeyword":"超载比"},{"id":"117556ea-1346-476c-bd93-55a9077aa9e0","keyword":"应力比","originalKeyword":"应力比"},{"id":"04e46357-7dd5-4996-8dcb-02ff140432e4","keyword":"X52管线钢","originalKeyword":"X52管线钢"}],"language":"zh","publisherId":"jsrclxb200804028","title":"超载对X52管线钢<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>速率的影响","volume":"29","year":"2008"},{"abstractinfo":"基于材料<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>阻力曲线(R曲线)及<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>能量释放率理论,定义<span style=\"color:red\">疲劳</span>载荷下的有效能量释放率(Geff)为<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span>完全张开后用于<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>的能量,与同一载荷循环中由<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>阻力曲线表征的消耗能相等,提出了一种能够反映<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>物理本质的<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>寿命预测模型.该模型可以计算每一载荷循环中的<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>量,进而预测<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>寿命.通过试验测定了7050-T7451铝合金板材的R曲线,采用最小二乘法拟合获得到了R曲线表达式.运用本模型对同种材料耳片结构的<span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>寿命进行了预测,与试验结果吻合较好,优于传统Paris模型的预测结果.","authors":[{"authorName":"伍黎明","id":"038a35a2-a9d1-4d76-a469-78b20551827d","originalAuthorName":"伍黎明"},{"authorName":"何宇廷","id":"2a2fff21-99e7-4989-bebf-4b42ad2212e7","originalAuthorName":"何宇廷"},{"authorName":"张海威","id":"b94c6424-9fc5-4a00-9cb5-bb3a43a3da1f","originalAuthorName":"张海威"},{"authorName":"张腾","id":"3a6ca7e9-e99a-46b4-acc1-a8bda42c5bb8","originalAuthorName":"张腾"}],"doi":"10.3969/j.issn.1005-5053.2013.6.013","fpage":"76","id":"709db643-76a0-4518-bd99-2a64450884b6","issue":"6","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"8809af96-08bc-4cf4-be70-88b733d9fc5b","keyword":"<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>","originalKeyword":"疲劳裂纹扩展"},{"id":"cf716a47-b5cc-4c6a-81b3-17297c67300d","keyword":"R曲线","originalKeyword":"R曲线"},{"id":"bef4bfb4-c89a-431b-b7e3-514ec2597689","keyword":"能量释放率","originalKeyword":"能量释放率"},{"id":"bc3c02e7-a75f-4c94-b5aa-b3df1b40d1d6","keyword":"耳片结构","originalKeyword":"耳片结构"},{"id":"1e4e6251-d455-437c-9d1f-5b7d4811fc20","keyword":"损伤容限","originalKeyword":"损伤容限"}],"language":"zh","publisherId":"hkclxb201306013","title":"基于材料R曲线的耳片接头<span style=\"color:red\">疲劳</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">扩展</span>寿命预测方法","volume":"33","year":"2013"}],"totalpage":1070,"totalrecord":10691}