{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"针对国内某钢厂利用电炉→LF→VD流程生产的亚包晶钢Q345B铸坯及轧材表面存在大量缺陷的现状,利用光学显微镜、扫描电镜以及能谱分析仪对铸坯表面裂纹进行了分析,并对析出物进行热力学计算,以此来分析出该钢种的铸坯产生裂纹的原因.研究结果表明:裂纹附近存在脱碳层及铁素体膜;裂纹处发现P、S富集及Al、Mg、Ca、Si等元素的夹杂物破坏了钢基体的连续性;保护渣及析出物对铸坯表面质量影响严重.为了防止缺陷的发生,应将钢水过热度控制在15 ~30℃;将结晶器中液渣层控制在8.5 ~9 mm并提高析晶相比率.同时,将钢水中氮含量稳定控制在35×10-6 ~45×10-6,并且适当提高Ti处理效率,降低AlN数量,对改善连铸坯表面质量有着很大的作用.","authors":[{"authorName":"艾西","id":"859a41b7-5546-4e46-b224-0aa59f2cc1a6","originalAuthorName":"艾西"},{"authorName":"孙彦辉","id":"bb8c849d-7352-4900-95f0-f2455f33c362","originalAuthorName":"孙彦辉"},{"authorName":"曾亚南","id":"25519897-7f2d-4e99-b89d-713cda32559d","originalAuthorName":"曾亚南"},{"authorName":"马志飞","id":"3fba17e6-9a28-4a5d-a651-825567e34af8","originalAuthorName":"马志飞"},{"authorName":"瑞宁","id":"65ca0b01-3838-46c4-95d9-b62e09217b06","originalAuthorName":"刘瑞宁"},{"authorName":"","id":"30aad34b-cbee-465c-bb37-2453162a10e9","originalAuthorName":"刘泳"}],"doi":"10.7513/j.issn.1004-7638.2013.04.017","fpage":"89","id":"62370315-7b82-4a3c-a610-51840ea1a364","issue":"4","journal":{"abbrevTitle":"GTFT","coverImgSrc":"journal/img/cover/gtft1.jpg","id":"28","issnPpub":"1004-7638","publisherId":"GTFT","title":"钢铁钒钛"},"keywords":[{"id":"c5ed5b5e-9433-4246-a9b7-0480d83cda13","keyword":"亚包晶钢","originalKeyword":"亚包晶钢"},{"id":"fcdf689f-6901-455c-98fc-dbf04ef2cdea","keyword":"大方坯","originalKeyword":"大方坯"},{"id":"143b504d-9626-4f73-b673-15d6d6ce21f8","keyword":"表面裂纹","originalKeyword":"表面裂纹"},{"id":"01a61d93-00fd-4be0-8274-3ab76a1b0a3e","keyword":"偏析","originalKeyword":"偏析"},{"id":"59009fd4-ecf5-4f80-bb40-0f3ed6bcc3c5","keyword":"析出物","originalKeyword":"析出物"}],"language":"zh","publisherId":"gtft201304017","title":"亚包晶钢Q345B连铸大方坯表面裂纹原因分析","volume":"34","year":"2013"},{"abstractinfo":"针对微合金亚包晶钢凝固过程中产生大量裂纹缺陷的现状,采用光学显微镜、扫描电镜及能谱分析仪对铸坯表面裂纹进行分析,并对析出物进行热力学计算,利用Gleeble-1500对铸坯热塑性进行分析研究.结果表明:裂纹处存在(Fe,Mn,Si,Al)(S,O)等夹杂物,加剧应力对基体的影响;裂纹处存在Ti-Al-(C,N)夹杂物,增加了γ→α转变的脆性,横裂纹敏感性增加.高温脆性区易产生纵裂,断面收缩率(Z)最小值为37.59%,纵裂纹敏感区间为1 454~1 478℃.900~750℃为低温脆性区,易产生横裂纹,Z最小值为45.24%,横裂纹敏感区间900 ~ 750℃.896℃时,铁素体开始析出,使得晶界上进一步集中,导致裂纹发生.","authors":[{"authorName":"曾亚南","id":"6e49a085-b630-434e-8e8a-174e872d3d6c","originalAuthorName":"曾亚南"},{"authorName":"孙彦辉","id":"7d4e9c12-4a23-42a2-ae41-c5ae7aa1a9ec","originalAuthorName":"孙彦辉"},{"authorName":"艾西","id":"178b70a5-cab7-43cb-8057-ae70e68b1893","originalAuthorName":"艾西"},{"authorName":"马志飞","id":"79d74257-16e2-441d-a37d-a78d0d953b10","originalAuthorName":"马志飞"},{"authorName":"瑞宁","id":"e2590d84-34aa-40d9-95ba-cb9b9fa6f463","originalAuthorName":"刘瑞宁"},{"authorName":"","id":"b6699a45-d9fc-4617-82e5-847f0b40ba5b","originalAuthorName":"刘泳"}],"doi":"10.7513/j.issn.1004-7638.2013.06.016","fpage":"79","id":"a80bf3f3-0e4a-48a9-b6af-9778ab97a72b","issue":"6","journal":{"abbrevTitle":"GTFT","coverImgSrc":"journal/img/cover/gtft1.jpg","id":"28","issnPpub":"1004-7638","publisherId":"GTFT","title":"钢铁钒钛"},"keywords":[{"id":"ab878783-d3ca-4eac-9d13-564d523a2fbc","keyword":"亚包晶钢","originalKeyword":"亚包晶钢"},{"id":"7f1d25f1-ce0f-40ec-9507-0283847c9834","keyword":"裂纹敏感区","originalKeyword":"裂纹敏感区"},{"id":"39c88222-c26c-498c-8a9f-bf1e28ed4954","keyword":"脆性区","originalKeyword":"脆性区"},{"id":"59e20384-47dc-4d68-aaaa-5d128f20061d","keyword":"铁素体","originalKeyword":"铁素体"},{"id":"20d926e4-4d20-464c-8883-18c8674c8a4d","keyword":"析出物","originalKeyword":"析出物"}],"language":"zh","publisherId":"gtft201306016","title":"亚包晶钢铸坯脆性区对表面裂纹的影响","volume":"34","year":"2013"},{"abstractinfo":"目前,关于石墨烯的基础和应用研究已成为研究的热点。高品质石墨烯的规模化制备是其广泛应用的前提。而电化学还原法提供了一种简单、快速、经济和环保的生产高质量石墨烯的途径。首先综述了两种不同的电化学还原方法。阐述了电化学还原法的机理。并且从形貌、还原程度、晶体结构3个方面对电化学还原产物的表征方法进行了分类介绍。最后对其今后的研究和发展进行了展望。","authors":[{"authorName":"尚玉","id":"9bff0999-0419-474a-9902-b79d2c357af9","originalAuthorName":"尚玉"},{"authorName":"张东","id":"e3afcdce-0300-431a-9e17-c8a8ba325dd7","originalAuthorName":"张东"},{"authorName":"艳云","id":"1abf72d8-d6e4-4e3b-a90c-f45d620fe6ba","originalAuthorName":"刘艳云"},{"authorName":"","id":"0e61826a-b025-45cb-88b6-508ac37a42b5","originalAuthorName":"刘泳"}],"doi":"10.3969/ji.ssn1.001-97312.0151.60.02","fpage":"16009","id":"b3ad1c8b-955f-4feb-9c7e-51fae23522ba","issue":"16","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"892c48c2-3334-4a2e-bad4-190c55a23f94","keyword":"石墨烯","originalKeyword":"石墨烯"},{"id":"cbc50259-1ee5-47b0-9324-a1c2a8bdde03","keyword":"电化学还原","originalKeyword":"电化学还原"},{"id":"e7aad0ce-3db7-453c-a71b-72047c3d6846","keyword":"机理","originalKeyword":"机理"},{"id":"2dcd2c59-6665-4e9a-b940-cb30595e97e6","keyword":"表征","originalKeyword":"表征"}],"language":"zh","publisherId":"gncl201516007","title":"电化学还原法制备石墨烯:制备与表征","volume":"","year":"2015"},{"abstractinfo":"系统研究了国内某钢厂生产的中碳钢Q345B钙处理前后夹杂物类型的变化,从热力学上分析铝脱氧钢中Al2O3夹杂物变性机制及夹杂物中CaS合理控制的条件,确立了夹杂物变性的“液相窗口”模型.热力学计算表明,温度为1873K,w([Al])为0.016%时,Al2O3转变为液态钙铝酸盐需要使钢中w([Ca])为0.0017%~0.0102%.生产实践表明,钙喂入量在0.0014%~0.0017%时,钙处理可以将钢中高熔点Al2O3的夹杂物转化为低熔点的12CaO· 7Al2O3和CaO·Al2O3夹杂物,MnS基本转化为CaS,且无单独CaS析出.","authors":[{"authorName":"马志飞","id":"1ca45206-c735-4f05-b883-b9a7f29bebf9","originalAuthorName":"马志飞"},{"authorName":"孙彦辉","id":"3377e953-0319-4cd4-ab74-cd146d0330f5","originalAuthorName":"孙彦辉"},{"authorName":"曾亚南","id":"01c9633c-2611-446a-ba31-10a5deb9482d","originalAuthorName":"曾亚南"},{"authorName":"艾西","id":"f3d7f330-f02c-405a-bdc8-159edd74f116","originalAuthorName":"艾西"},{"authorName":"瑞宁","id":"5498dfbb-01a5-413b-8acd-3225127b0b70","originalAuthorName":"刘瑞宁"},{"authorName":"","id":"4295583e-6cc4-4256-88a3-114eff31fc16","originalAuthorName":"刘泳"}],"doi":"","fpage":"37","id":"c7fe2de0-d283-4321-ac50-9457664eb29a","issue":"11","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"0ccaa0ae-93ff-4304-a31e-d84248677d8a","keyword":"钙处理","originalKeyword":"钙处理"},{"id":"a6f0be39-96cc-4cc3-8c5c-57b9bc7dd414","keyword":"钙铝酸盐","originalKeyword":"钙铝酸盐"},{"id":"740ac30f-80d4-4211-b041-4c65c6ded1b7","keyword":"硫化钙","originalKeyword":"硫化钙"},{"id":"f91f1f3d-9340-455d-990c-c991960fbff9","keyword":"液相窗口","originalKeyword":"液相窗口"},{"id":"72f62347-e761-40d6-84d0-61f61dae536f","keyword":"变性","originalKeyword":"变性"}],"language":"zh","publisherId":"gt201311007","title":"中碳钢钙处理夹杂物变性的“液相窗口”控制模型","volume":"48","year":"2013"},{"abstractinfo":"采用Gleeble 1500热模拟机对Q345B钢在1×10-4 s-1和1×10-3 s-1应变速率下的热塑性进行了研究.研究表明:在1×10-4 s-1的应变速率下,试样在600 ~TL ℃的温度范围内存在两个脆性区,即高温脆性区,为1 217~TL℃,低温脆性区,为600~930℃;在1×10-3 s-1的应变速率下,试样在600~TL ℃的温度范围内不存在高温脆性区,仅存在低温脆性区,为600~915℃.影响Q345B钢热塑性的主要因素是S偏析、应变速率、铁素体的析出以及细小的AlN粒子的析出.","authors":[{"authorName":"艾西","id":"1747fa1c-1f51-4a47-b98c-97c62bc1ae39","originalAuthorName":"艾西"},{"authorName":"孙彦辉","id":"46b2c80f-7052-4fc2-8c15-57a30c5ef64b","originalAuthorName":"孙彦辉"},{"authorName":"曾亚南","id":"2b50979d-749d-4fbc-b3ce-4f9def19162f","originalAuthorName":"曾亚南"},{"authorName":"瑞宁","id":"8479fc63-0340-4c87-a64d-edc2bae0a28b","originalAuthorName":"刘瑞宁"},{"authorName":"","id":"731e8a19-4755-469b-bf51-5065cb99e8a4","originalAuthorName":"刘泳"}],"doi":"10.7513/j.issn.1004-7638.2014.04.020","fpage":"103","id":"cd9c429b-0cab-4511-becc-1ee9be911025","issue":"4","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"b78e1044-8565-4d48-8070-23fa8d26890d","keyword":"低碳钢","originalKeyword":"低碳钢"},{"id":"de0c9d28-ce32-4d79-88bf-37e06008d50c","keyword":"热塑性","originalKeyword":"热塑性"},{"id":"81c7534e-fa23-492d-8eff-fc1f2df641eb","keyword":"应变速率","originalKeyword":"应变速率"},{"id":"d641b2a6-67bf-4cd2-ae52-5d9b2463b88e","keyword":"析出物","originalKeyword":"析出物"}],"language":"zh","publisherId":"gtft201404020","title":"低碳钢Q345B大方坯热塑性研究","volume":"35","year":"2014"},{"abstractinfo":"采用铌铁矿预产物合成法制备La掺杂Pb(1-x)Lax(Mg1/3 Nb2/3)0.75Ti0.25O3(0.75PMN-0.25PT-xLa,x=0、0.01、0.015、0.02)铁电陶瓷,并研究了不同含量La掺杂对PMN—PT的微观结构及其性能的影响.结果表明,所有陶瓷样品均为纯钙钛矿结构,没有其他任何杂相,而且随La含量的增加,材料相结构逐渐由三方相向四方相转变.当La掺杂量为0.015时,0.75PMN-0.25 PT-xLa陶瓷出现三方和四方相共存现象,即出现了准同型相界(MPB),使得0.75PMN-0.25PT-xLa陶瓷的电学性能得到了较大的提高,压电常数d33~ 360 pC/N,介电常数εr~6000.La掺杂量达到0.02时,材料的相结构已全部转化为四方相,提高了晶体的对称性,为制备La掺杂0.75PMN-0.25PT电光透明陶瓷提供了依据.","authors":[{"authorName":"尹慧娟","id":"7d14cd1a-da77-4b7e-b78e-7fecf750ca4d","originalAuthorName":"尹慧娟"},{"authorName":"徐志军","id":"e9809773-f103-4efd-a50d-b9225aae9e0f","originalAuthorName":"徐志军"},{"authorName":"初瑞清","id":"13becb95-42b4-4994-9ffb-8c355d9e651d","originalAuthorName":"初瑞清"},{"authorName":"迟庆斌","id":"ec5b53a6-3d96-495f-81a7-69b206a4af96","originalAuthorName":"迟庆斌"},{"authorName":"","id":"34fc5150-50bb-45a0-a382-39b6a24ac7a5","originalAuthorName":"刘泳"},{"authorName":"李国荣","id":"7c2c3f05-f243-4493-b55a-da5ea64d5eb4","originalAuthorName":"李国荣"}],"doi":"","fpage":"1067","id":"d222e7ad-ab87-4547-87cf-a349f89f37bc","issue":"6","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报 "},"keywords":[{"id":"a97bda7f-985b-4fc3-8466-8aae941ddfb3","keyword":"PMN-PT陶瓷","originalKeyword":"PMN-PT陶瓷"},{"id":"4ee4012e-02ff-4093-81a4-ce12d2f1eeec","keyword":"两步合成法","originalKeyword":"两步合成法"},{"id":"4a4d2419-9acc-4a0f-963d-ab64a9979894","keyword":"准同型相界","originalKeyword":"准同型相界"},{"id":"060fa2d6-ccda-4a4f-a2cc-56ffe5f23031","keyword":"电学性能","originalKeyword":"电学性能"}],"language":"zh","publisherId":"gsytb201306014","title":"La掺杂对0.75PMN-0.25PT压电陶瓷结构及其性能的影响","volume":"32","year":"2013"},{"abstractinfo":"自涂装是通过化学反应在钢铁基材表面形成漆膜的一种涂装方式.介绍了自涂装的反应机理及涂装工艺,通过与阴极电泳的比较分析了自涂装的漆膜性能及优缺点,认为自涂装可在一定范围内替代阴极电泳.","authors":[{"authorName":"赵兴建","id":"78498811-67b9-405e-9c8f-93cd7ee7faa7","originalAuthorName":"赵兴建"},{"authorName":"孔德炳","id":"48ecfa9f-26d6-4095-8659-78f3e078996e","originalAuthorName":"孔德炳"},{"authorName":"赵照军","id":"abedaeb8-ba47-4415-9a61-690d183fd76a","originalAuthorName":"赵照军"}],"doi":"10.3969/j.issn.1001-1560.2005.03.020","fpage":"67","id":"b530de49-f8e6-49b0-9d1e-7d114fe24d02","issue":"3","journal":{"abbrevTitle":"CLBH","coverImgSrc":"journal/img/cover/CLBH.jpg","id":"7","issnPpub":"1001-1560","publisherId":"CLBH","title":"材料保护"},"keywords":[{"id":"742949d0-bb01-4b72-a8ce-189a302060fa","keyword":"自涂装","originalKeyword":"自泳涂装"},{"id":"6427ffae-ef38-4e2e-be1b-79ae3a4335d5","keyword":"工艺","originalKeyword":"工艺"},{"id":"4c88d138-cabd-448c-baa0-6bbfdce313cd","keyword":"阴极电泳","originalKeyword":"阴极电泳"},{"id":"b70e11d6-6b5d-4538-910c-c67e81f91b57","keyword":"涂层性能","originalKeyword":"涂层性能"}],"language":"zh","publisherId":"clbh200503020","title":"自涂装工艺及应用","volume":"38","year":"2005"},{"abstractinfo":"以150 mm×150 mm GCr15小方坯的试验数据为依据,分析了结晶器电磁搅拌电流参数和连铸工艺参数对连铸坯中心碳偏析以及低倍组织的影响,采用合适的结晶器电搅电流能够改善中心碳偏析","authors":[{"authorName":"","id":"4e7461da-6a19-4e4e-8e60-97110bd8ec0a","originalAuthorName":"刘泳"},{"authorName":"王恭亮","id":"7b2a0b21-2733-43f4-a465-91bd8810d092","originalAuthorName":"王恭亮"},{"authorName":"瑞宁","id":"c4cc45d0-deeb-4d12-a96d-d6948f10403b","originalAuthorName":"刘瑞宁"}],"doi":"","fpage":"43","id":"809bd53d-eca2-413f-876e-2076b53aa276","issue":"5","journal":{"abbrevTitle":"LZ","coverImgSrc":"journal/img/cover/LZ.jpg","id":"52","issnPpub":"1005-4006","publisherId":"LZ","title":"连铸"},"keywords":[{"id":"ea4722b2-07c3-45bb-a850-b0c3afee9b27","keyword":"轴承钢","originalKeyword":"轴承钢"},{"id":"7a86ec6b-35c3-46bf-a098-9741b3edb563","keyword":"结晶器电搅电流","originalKeyword":"结晶器电搅电流"},{"id":"7e53eb2d-f529-4436-a34b-b17669f9ca33","keyword":"优化","originalKeyword":"优化"}],"language":"zh","publisherId":"lz201205010","title":"结晶器电磁搅拌对轴承钢小方坯碳偏析影响","volume":"","year":"2012"},{"abstractinfo":"本文基于流体内部温度梯度的剪切变化特征,提出颗粒在流体中会受到热升力的观点.该力与热现象中的粒子运动相关但不同于热力.介绍了求解得到该热升力的两种思路.比拟速度剪切流动中颗粒受到流体作用的升力的过程,给出了颗粒在温度梯度作用下受到的热升力的表达式.本文指出该热升力与流体平均温度梯度方向垂直,并且指向梯度较大的部分.针对碳纳米管热驱动和暖气片熏墙的例子,分析了热升力的作用.","authors":[{"authorName":"董双岭","id":"f1020f2f-d597-4354-b834-ebb9ca16803c","originalAuthorName":"董双岭"},{"authorName":"曹炳阳","id":"b6d7c720-e687-4bac-8639-b370d3f978e6","originalAuthorName":"曹炳阳"},{"authorName":"过增元","id":"7f176ae4-cd01-4f78-a8f9-0fdaee0a5d89","originalAuthorName":"过增元"}],"doi":"","fpage":"1063","id":"131d1113-c460-4ba9-8f2c-8e7b59f46e4e","issue":"5","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 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