{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"研究变形量对挤压态钨合金动态力学行为的影响及钨合金绝热剪切带内的微观开裂行为.结果表明,加载方向垂直于纤维取向时,随变形量由0增加至40.8%,挤压态钨合金绝热剪切敏感性显著增大;由对钨合金绝热剪切带内微观组织的SEM观察可知,靠近绝热剪切带中心处出现在<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span>且<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>于W-M界面及W颗粒内部;进一步的TEM观察可知,剪切带内W-M界面处存在大量的位错塞积,W颗粒中则出现亚晶内部及沿亚晶界扩展的<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span>.","authors":[{"authorName":"彭磊","id":"fb8ad646-6a88-4a28-92dc-fcebe0d48d84","originalAuthorName":"彭磊"},{"authorName":"李树奎","id":"75118d88-1834-4492-9aee-096effbab459","originalAuthorName":"李树奎"},{"authorName":"周晓青","id":"ddeae9e9-037a-4560-8238-4d3cc35696ca","originalAuthorName":"周晓青"},{"authorName":"才鸿年","id":"f6817874-1a0f-4106-8c4d-28bbf39169b5","originalAuthorName":"才鸿年"}],"doi":"","fpage":"2084","id":"92771e9e-9864-4f1e-b9cd-b3910d8cca10","issue":"12","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":"8259fe04-e613-4e7c-a14f-fd413f40249b","keyword":"钨合金","originalKeyword":"钨合金"},{"id":"6c2e21bf-6391-49c0-80ac-58e8dc2a6f10","keyword":"挤压","originalKeyword":"挤压"},{"id":"970d807d-206e-4412-803b-489de7d7c14d","keyword":"绝热剪切带","originalKeyword":"绝热剪切带"},{"id":"0d2cf7c2-d65f-412e-a262-016cc26a9bd3","keyword":"<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>","originalKeyword":"微裂纹萌生"}],"language":"zh","publisherId":"xyjsclygc201012004","title":"挤压态钨合金绝热剪切局域化及<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>现象研究","volume":"39","year":"2010"},{"abstractinfo":"对压力容器与压力管道用钢Q345R在低周疲劳下微孔（?40～200μm）的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展规律进行了研究。研究表明小<span style=\"color:red\">裂纹</span>的<span style=\"color:red\">萌生</span>主要机理为滑移带启裂，并且由剪应力起主导作用。<span style=\"color:red\">微</span>缺陷的尺寸、应力幅等因素对疲劳寿命均有影响显著，当应力幅值较低时，微孔的尺寸对疲劳寿命有明显影响。当应力幅值水平较高时，小孔直径对疲劳寿命的影响则不敏感。微观缺陷尺寸存在临界值，当缺陷尺寸大于临界值时，疲劳寿命下降很快。在同一应力幅水平下，<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>寿命与疲劳总寿命的比值（Nt/Nf）与微孔尺寸没有关系，本试验的低周疲劳下约为10%～25%。","authors":[{"authorName":"杜洪奎","id":"9d48f8b9-3285-4dee-9fdf-ec43ac201a75","originalAuthorName":"杜洪奎"},{"authorName":"杜睿捷","id":"5c682881-0123-4671-8ec8-5b16927148b6","originalAuthorName":"杜睿捷"}],"doi":"10.13228/j.boyuan.issn0449-749x.20140382","fpage":"64","id":"b6915f8d-0a4f-4e51-a5ee-07a85970050f","issue":"3","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"2ae40220-4e06-428f-b61a-ae7c207dfd98","keyword":"<span style=\"color:red\">微</span>缺陷","originalKeyword":"微缺陷"},{"id":"0e6a4fc0-2f72-4aa4-b84c-e52c6ca229f1","keyword":"<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>","originalKeyword":"裂纹萌生"},{"id":"b0de3279-257c-41c5-a9a5-1de5db98cd3d","keyword":"低周疲劳","originalKeyword":"低周疲劳"},{"id":"efe43105-877e-4515-a283-614987c476cb","keyword":"<span style=\"color:red\">裂纹</span>扩展","originalKeyword":"裂纹扩展"}],"language":"zh","publisherId":"gt201503012","title":"Q345R钢中<span style=\"color:red\">微</span>缺陷的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展","volume":"","year":"2015"},{"abstractinfo":"采用宏现与微观结合的方法以及大型疲劳试验机和光学显微镜研究了压力容器用钢16MnR在低周疲劳下微孔(φ 40～200μm)的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展规律.结果表明:<span style=\"color:red\">裂纹</span>的<span style=\"color:red\">萌生</span>机制为滑移带启裂,由剪应力起主要作用,微观缺陷尺寸、应力水平对疲劳寿命有显著影响,当应力水平较低时,微孔尺寸对疲劳寿命的影响明显;当应力水平较高时(超过屈服强度),孔径对疲劳寿命的影响不敏感;在同一应力水平下,<span style=\"color:red\">微</span>缺陷尺寸d存在临界值dt,当d>dt时,疲劳寿命下降很多.","authors":[{"authorName":"杜洪奎","id":"5fb62dbb-3ce9-4862-9666-d8ff8f3a16ad","originalAuthorName":"杜洪奎"},{"authorName":"潘家祯","id":"7b9b331a-cef9-4902-b530-a29697993ee0","originalAuthorName":"潘家祯"}],"doi":"10.3969/j.issn.1000-3738.2008.02.006","fpage":"18","id":"67b46cae-f7d6-45d6-987f-cf932e72d0a0","issue":"2","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":"190c0654-f000-4339-8be0-e50ceca8b721","keyword":"微孔","originalKeyword":"微孔"},{"id":"7dee3610-2be3-4630-b257-f8fcbd35b0c9","keyword":"低周疲劳","originalKeyword":"低周疲劳"},{"id":"1092a32a-58ee-48c0-ba6b-1a1dbabd8f54","keyword":"<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>","originalKeyword":"裂纹萌生"},{"id":"350a1a18-c424-436f-87f1-81dae01b7e6c","keyword":"<span style=\"color:red\">裂纹</span>扩展","originalKeyword":"裂纹扩展"}],"language":"zh","publisherId":"jxgccl200802006","title":"低合金钢<span style=\"color:red\">微</span>缺陷的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>扩展规律","volume":"32","year":"2008"},{"abstractinfo":"用扫描电镜（SEM）观察了受应变疲劳载荷作用的Cu双晶的表面形貌，发现晶界是疲劳形变双晶最有利的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>地点．在滑移带撞击晶界的地方，特别是在几条粗滑移带共同撞击晶界的地方观察到许多疲劳<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span>；并且发现与平行晶界双晶相比，垂直晶界双晶中极有利于疲劳<span style=\"color:red\">裂纹</span>沿晶界作早期扩展一种PSB－GB疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>机制可用来解释这些沿晶疲劳<span style=\"color:red\">裂纹</span>的形成．","authors":[{"authorName":"胡运明","id":"77ae4aa3-6808-489c-8bc5-6650f376be2e","originalAuthorName":"胡运明"},{"authorName":"王中光","id":"7ced6ee3-e05f-4fe9-b837-48cc08895055","originalAuthorName":"王中光"}],"categoryName":"|","doi":"","fpage":"824","id":"cf02ca4d-0cae-4928-bc07-ca0b683805ba","issue":"8","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"7d7c34bc-a4ac-4293-8a0a-95f34376165a","keyword":"Cu双晶","originalKeyword":"Cu双晶"},{"id":"4445b9ed-3bea-46b1-b92c-93f90a0d8bf3","keyword":" fatigue crack initiation","originalKeyword":" fatigue crack initiation"},{"id":"874f71db-469a-4dd6-92df-75c38d9e101d","keyword":" fatigue crack early growth","originalKeyword":" fatigue crack early growth"}],"language":"zh","publisherId":"0412-1961_1997_8_2","title":"Cu双晶的循环形变行为与疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>Ⅱ.疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与早期扩展","volume":"33","year":"1997"},{"abstractinfo":"在透射电镜中进行动态拉伸原位观察珠光体<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展的微观过程.结果表明:珠光体<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展方式取决于珠光体层片和拉伸轴的位向关系.当珠光体层片平行于拉伸轴时,<span style=\"color:red\">裂纹</span>在渗碳体和铁素体中交替<span style=\"color:red\">萌生</span>,垂直于层片扩展;当珠光体层片垂直于拉伸轴时,<span style=\"color:red\">裂纹</span>在铁素体中<span style=\"color:red\">萌生</span>,平行于层片扩展;当珠光体层片与拉伸轴斜交时,<span style=\"color:red\">裂纹</span>通过渗碳体和铁素体交替断裂而扩展;<span style=\"color:red\">裂纹</span>也可以在珠光体团边界<span style=\"color:red\">萌生</span>和扩展.","authors":[{"authorName":"戴品强","id":"a68ed6ba-1484-46b5-a014-fdfdb74cee9f","originalAuthorName":"戴品强"},{"authorName":"何则荣","id":"8be9021a-34d2-42a2-97fd-ace90da626e9","originalAuthorName":"何则荣"},{"authorName":"毛志远","id":"229635d3-04f8-468f-91e7-60ef2077ec3a","originalAuthorName":"毛志远"}],"doi":"10.3969/j.issn.1009-6264.2003.02.011","fpage":"41","id":"a42ee75c-6815-490f-ab41-51ded5a09356","issue":"2","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":"f0288f0b-c90f-40fe-9a48-fa5b94de6bce","keyword":"珠光体","originalKeyword":"珠光体"},{"id":"dfdab3f0-fcf6-4f15-ad04-ccf347fd7f36","keyword":"原位观察","originalKeyword":"原位观察"},{"id":"5e652133-27d0-4089-b627-0947fb9fe384","keyword":"<span style=\"color:red\">裂纹</span>扩展","originalKeyword":"裂纹扩展"},{"id":"c65a8db0-0773-4b25-aec1-25ea242eb2a0","keyword":"位错","originalKeyword":"位错"}],"language":"zh","publisherId":"jsrclxb200302011","title":"珠光体<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>与扩展的TEM原位观察","volume":"24","year":"2003"},{"abstractinfo":"基于大量的高温低周疲劳试验,编写Matlab程序修正voronoi多边形模拟了20钢表面的显微组织;用有限元软件计算得到了不同试验条件下试样表面的应力、应变状态;以基础能量表征晶界及滑移带抵抗<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>的能力,改进位错累积理论并计算获得了<span style=\"color:red\">裂纹</span>的<span style=\"color:red\">萌生</span>寿命,实现了对低碳钢高温低周疲劳短<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>的数值模拟.结果表明:在高温下,疲劳短<span style=\"color:red\">裂纹</span>主要<span style=\"color:red\">萌生</span>于应力集中处的驻留滑移带及不稳定晶界上,受表面显微组织的影响,既有沿晶<span style=\"color:red\">萌生</span>又有穿晶<span style=\"color:red\">萌生</span>;修正的voronoi多边形很好地反映了表面显微组织,数值模拟能够准确再现不同循环次数下疲劳短<span style=\"color:red\">裂纹</span>的群体<span style=\"color:red\">萌生</span>行为.","authors":[{"authorName":"王正","id":"29c6fea7-e373-448b-86cd-1ca1c4f63e00","originalAuthorName":"王正"},{"authorName":"谭伟同","id":"41e12b16-84e0-4efc-b2e8-e235d1282988","originalAuthorName":"谭伟同"},{"authorName":"王璐","id":"e5cfcb09-d3d2-4aaa-9800-8738be8e58ea","originalAuthorName":"王璐"},{"authorName":"陈楠","id":"2970114a-ceb9-4ce0-807e-e7f22e67f617","originalAuthorName":"陈楠"}],"doi":"","fpage":"90","id":"b5f97d70-fe4e-4e64-976a-0cc5b0371df5","issue":"3","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":"9e046ace-175a-474e-95bc-d70f51ba9ac7","keyword":"高温","originalKeyword":"高温"},{"id":"810f460d-a192-464b-82e7-7812551f9681","keyword":"低周疲劳","originalKeyword":"低周疲劳"},{"id":"ec1ebdf2-dac6-4a5a-9e16-1ae079cc28b8","keyword":"短<span style=\"color:red\">裂纹</span>","originalKeyword":"短裂纹"},{"id":"c42d053b-e1a9-4e74-8e04-2f7e56c06f0e","keyword":"<span style=\"color:red\">萌生</span>寿命","originalKeyword":"萌生寿命"},{"id":"f771c528-6dc7-4a0a-9203-70f7ad3847d2","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"jxgccl201403020","title":"高温低周疲劳短<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>的数值模拟","volume":"38","year":"2014"},{"abstractinfo":"对GJW50钢结硬质合金进行了20℃～680℃的热循环试验,研究了该合金热疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>及扩展机理.重点研究<span style=\"color:red\">裂纹</span>在其宽度方向上的扩展机理.结果表明:经过一定次数的冷热循环后,与缺口边缘垂直方向<span style=\"color:red\">萌生</span>多条平行<span style=\"color:red\">裂纹</span>,其中在缺口尖端处与热循环方向平行的一条<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span>发展成为主<span style=\"color:red\">裂纹</span>.<span style=\"color:red\">裂纹</span>在<span style=\"color:red\">萌生</span>过程中伴随着严重的氧化腐蚀,二者相互影响,氧化腐蚀促进<span style=\"color:red\">裂纹</span>的<span style=\"color:red\">萌生</span>.在主<span style=\"color:red\">裂纹</span>长大的过程中,与主<span style=\"color:red\">裂纹</span>平行方向和垂直方向同时<span style=\"color:red\">萌生</span>多条相互平行的<span style=\"color:red\">微</span><span style=\"color:red\">裂纹</span>;这些微<span style=\"color:red\">裂纹</span>随着循环次数的增多而长大,最终与主<span style=\"color:red\">裂纹</span>相连相通,形成主<span style=\"color:red\">裂纹</span>在宽度方向上的扩展.","authors":[{"authorName":"张焱","id":"9f9eb45a-38af-49b1-90cd-51538f95d3c6","originalAuthorName":"张焱"},{"authorName":"尤显卿","id":"a2f7581b-c104-4a00-a401-d2177e4c892f","originalAuthorName":"尤显卿"},{"authorName":"丁峰","id":"70a0d499-3735-43c5-860e-dc1258778f3f","originalAuthorName":"丁峰"},{"authorName":"田四光","id":"16bc6d17-549f-4e1f-9dd8-5121560edec1","originalAuthorName":"田四光"},{"authorName":"钟成山","id":"9466eea4-6e95-4d14-9095-30b38db1efff","originalAuthorName":"钟成山"}],"doi":"","fpage":"81","id":"4bd9e925-e4ad-411d-a11f-5ef92ee8a33e","issue":"5","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":"23a96ad7-8a99-4d2e-becc-b431ffd8c118","keyword":"钢结硬质合金","originalKeyword":"钢结硬质合金"},{"id":"795a404f-9834-4478-8a2f-ab2a1055b801","keyword":"热疲劳","originalKeyword":"热疲劳"},{"id":"6b4856fc-8bfc-43ec-a70e-58d7f1d0c148","keyword":"<span style=\"color:red\">裂纹</span>","originalKeyword":"裂纹"},{"id":"2bf63564-289c-4128-a366-896af3f5847e","keyword":"<span style=\"color:red\">萌生</span>","originalKeyword":"萌生"},{"id":"1f82ad64-4ff6-4f16-8782-b7d9509597a0","keyword":"扩展","originalKeyword":"扩展"}],"language":"zh","publisherId":"jsrclxb200805019","title":"钢结硬质合金热疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>扩展机理探讨","volume":"29","year":"2008"},{"abstractinfo":"将预产生点蚀的1Cr18Ni9Ti疲劳试样进行长期(N>1×10~6cyc.)疲劳试验。其中一些在6％FeCl_3水溶液中进行,另一些在空气中进行。用定量金相方法逐个测量点蚀坑的直径和深度。发现点蚀坑的深径比和深度都与<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>有关,且在不锈钢点蚀坑的<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>过程中力学因素起主导作用而与碳钢完全不同。通过蚀坑底部的扫描电镜观察,分别确定了不锈钢和碳钢点蚀坑中<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>的初始位置,并依此讨论了腐蚀疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>机理。","authors":[{"authorName":"周向阳","id":"f00d8110-bd40-464a-b08f-3677220d131e","originalAuthorName":"周向阳"},{"authorName":"柯伟","id":"02292b06-f60e-412a-9e4b-10801d900b37","originalAuthorName":"柯伟"}],"categoryName":"|","doi":"","fpage":"72","id":"d5989d44-e228-417d-8bf4-6eb10a3eb9b4","issue":"8","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"95d44c69-98c9-4939-92fb-a2515542ccf3","keyword":"点蚀","originalKeyword":"点蚀"},{"id":"a5a66068-fe91-4669-adbb-8497aadadee5","keyword":" crack initiation","originalKeyword":" crack initiation"},{"id":"6ca01e8d-84a6-472c-beec-13260ee1aabd","keyword":" effective stress concentration factor","originalKeyword":" effective stress concentration factor"}],"language":"zh","publisherId":"0412-1961_1992_8_1","title":"点蚀坑的形貌与腐蚀疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>","volume":"28","year":"1992"},{"abstractinfo":"本文通过力学分析和扫描电镜观察，研究了点接触条件下有表面滑动和无表面滑动摩擦时的接触疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>和扩张行为，指出了接触疲劳破坏的典型特征和一般特征．结果表明，在边界润滑条件下，接触疲劳<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>于表面，以Ⅱ型方式向纵深扩张，<span style=\"color:red\">裂纹</span>扩张走向与<span style=\"color:red\">裂纹</span>尖端处最大切应力走向一致．有表面滑动摩擦时，典型的<span style=\"color:red\">裂纹</span>扩张路径（或剥落坑形状）由呈Ｕ字形的四个阶段组成，无表面滑动摩擦时，扩张路径则由Ｖ字形的三阶段组成；一般的破坏以连续剥落的方式发展，它由相应条件的典型扩张各阶段随机组成．","authors":[{"authorName":"沙江波","id":"b94c049d-6ad5-420d-9675-694c24b25e6a","originalAuthorName":"沙江波"},{"authorName":"井晓天","id":"186e6533-a5d9-4427-8f0f-e9dc1faa46a5","originalAuthorName":"井晓天"},{"authorName":"楼秉哲","id":"e269c922-ae5f-45f8-8597-98ec4329088a","originalAuthorName":"楼秉哲"},{"authorName":"沈福三","id":"f1bdda65-6b9e-4d1b-923e-1abe5fca6187","originalAuthorName":"沈福三"}],"categoryName":"|","doi":"","fpage":"422","id":"12db4398-3a0d-45de-afe8-4d62bc219c3a","issue":"9","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"51465afa-cffd-498d-a1af-c46fbaaaae7a","keyword":"接触疲劳","originalKeyword":"接触疲劳"},{"id":"751b208b-f0c0-48fc-98c9-644fa7754640","keyword":" stress","originalKeyword":" stress"},{"id":"53969e9f-8f21-44e1-96b3-3cdd8bbb1e79","keyword":" crack initiation","originalKeyword":" crack initiation"},{"id":"50ab393d-76aa-46e5-a395-99c83ab3d371","keyword":" crack growth.","originalKeyword":" crack growth."}],"language":"zh","publisherId":"0412-1961_1995_9_6","title":"接触疲劳<span style=\"color:red\">裂纹</span>的<span style=\"color:red\">萌生</span>与扩张行为的研究","volume":"31","year":"1995"},{"abstractinfo":"采用硫化氢腐蚀试验、金相显微镜和扫描电镜(SEM)观察及EDS分析研究了非金属夹杂物和微观组织对X65管线钢氢致<span style=\"color:red\">裂纹</span>(HIC)<span style=\"color:red\">萌生</span>和扩展的影响.研究表明:晶界、相界、脆硬的非金属夹杂物是钢中的氢陷阱.夹杂物的尺寸、形态及类型影响管线钢的HIC敏感性.HIC不易在小尺寸球形夹杂物上<span style=\"color:red\">萌生</span>,而长条和具有尖角的非金属夹杂物使钢具有高HIC敏感性,Ca处理能使夹杂形态趋于分散的球形,降低钢的HIC敏感性;HIC<span style=\"color:red\">裂纹</span>易在脆硬的富Si夹杂物处<span style=\"color:red\">萌生</span>和扩展.与铁素体组织相比,HIC更易在脆硬的贝氏体组织中扩展,HIC可沿着晶界或穿过晶界扩展.","authors":[{"authorName":"李金玲","id":"4a8a2a32-e788-4bb6-8a71-c42ad229343f","originalAuthorName":"李金玲"},{"authorName":"刘伟","id":"e8760bf7-7868-4652-a95a-6b43db2ca7ac","originalAuthorName":"刘伟"},{"authorName":"王翼鹏","id":"be479f0b-e04a-4ea0-b8a0-17618fa1adec","originalAuthorName":"王翼鹏"},{"authorName":"左秀荣","id":"1479c735-8b1f-426c-b766-8cec7d3448a5","originalAuthorName":"左秀荣"},{"authorName":"李源","id":"a3cd96bc-8ce0-444f-9f43-020135410bb6","originalAuthorName":"李源"},{"authorName":"赵鹏翔","id":"dc863121-72a8-448a-82e8-b313fcc8b21b","originalAuthorName":"赵鹏翔"},{"authorName":"陈康","id":"b4679cd3-e8ec-4a3b-8ca2-debe7fb4896e","originalAuthorName":"陈康"}],"doi":"","fpage":"171","id":"e1d39e26-d968-409c-b608-834373fa0271","issue":"3","journal":{"abbrevTitle":"CLYYJXB","coverImgSrc":"journal/img/cover/CLYYJXB.jpg","id":"17","issnPpub":"1671-6620","publisherId":"CLYYJXB","title":"材料与冶金学报"},"keywords":[{"id":"cd9fc2a7-6497-4107-ae64-5e895adc9865","keyword":"X65管线钢","originalKeyword":"X65管线钢"},{"id":"f5b66871-4338-4ede-ac6f-ce0b6ad5052c","keyword":"氢致<span style=\"color:red\">裂纹</span>","originalKeyword":"氢致裂纹"},{"id":"6331dd66-a0f9-434b-a3b0-bc7d2c6fe886","keyword":"夹杂物","originalKeyword":"夹杂物"}],"language":"zh","publisherId":"clyyjxb201403003","title":"管线钢<span style=\"color:red\">裂纹</span><span style=\"color:red\">萌生</span>及其扩展的研究","volume":"13","year":"2014"}],"totalpage":1855,"totalrecord":18545}