{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本文根据钢厂生产实践，从凝固组织入手，从宏观角度阐释凝固组织对<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>及钢液流动的影响：<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>是由于凝固界面均一向前推进，溶质元素在<span style=\"color:red\">中心</span>部位汇聚造成的；<span style=\"color:red\">柱状晶</span>发达，高溶质钢液停留在<span style=\"color:red\">柱状晶</span>间的间隙内，可以改善<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>；<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>凝固界面可以分散汇聚在<span style=\"color:red\">中心</span>部位的溶质元素，改善<span style=\"color:red\">偏析</span>；钢液补充凝固收缩的现象发生在<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>区内, 恶化了<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>。","authors":[{"authorName":"钟玉玲","id":"389670bc-a10b-484a-a2b5-2d33022ed1cb","originalAuthorName":"钟玉玲"}],"categoryName":"|","doi":"","fpage":"26","id":"f0653d50-b1bd-45bf-bc96-7387d4c07e56","issue":"1","journal":{"abbrevTitle":"LZ","coverImgSrc":"journal/img/cover/LZ.jpg","id":"52","issnPpub":"1005-4006","publisherId":"LZ","title":"连铸"},"keywords":[{"id":"ef967f27-6ce8-456a-ab17-54a9c2e9e547","keyword":"<span style=\"color:red\">柱状晶</span>;<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>;<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>","originalKeyword":"柱状晶;等轴晶;中心偏析"}],"language":"zh","publisherId":"1005-4006_2010_1_8","title":"凝固组织对连铸板坯<span style=\"color:red\">中心</span><span style=\"color:red\">偏析</span>的影响","volume":"1","year":"2010"},{"abstractinfo":"研究分析了不同保温温度、冷却水温<span style=\"color:red\">等</span>条件对铝合金<span style=\"color:red\">等</span><span style=\"color:red\">轴</span>晶形核率、<span style=\"color:red\">柱状晶</span>形核率、<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变(CET)位置的影响规律.试验结果表明:降低保温温度、升高冷却水温,会增大<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>区的面积；降低冷却水温、降低保温温度会增大铸件<span style=\"color:red\">柱状晶</span>和<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>的形核率.还根据获得的CET位置实验结果,讨论了国内外文献提出的CET位置判据对本研究的适用性,并针对本文的实验条件,提出了具有更高预测精度的CET转变判据.","authors":[{"authorName":"侯忠霖","id":"8ee644e6-a7de-43a0-a8ca-7194e35bd7db","originalAuthorName":"侯忠霖"},{"authorName":"姚山","id":"7bc4a33f-e0ba-4c0c-9a55-fc6ceadab624","originalAuthorName":"姚山"},{"authorName":"李婷","id":"41e82a43-c126-4895-92be-cb5a654c9847","originalAuthorName":"李婷"},{"authorName":"沙明红","id":"38c06282-3f29-432d-b1a9-c448495f68dc","originalAuthorName":"沙明红"}],"doi":"","fpage":"120","id":"9a915906-6030-4cc5-b834-ea72f407cf31","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":"247b4d44-8d6f-46bb-8e57-2c32f70e4be6","keyword":"铝合金","originalKeyword":"铝合金"},{"id":"ef7ec700-c5c1-4d5f-bc80-022772ca9c70","keyword":"凝固","originalKeyword":"凝固"},{"id":"5c8e3b91-8624-4705-bfbd-421ff602f3be","keyword":"<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变(CET)","originalKeyword":"柱状晶向等轴晶转变(CET)"},{"id":"bd1ad656-6fc7-4480-866e-b7de0f0fdc62","keyword":"判据","originalKeyword":"判据"}],"language":"zh","publisherId":"jsrclxb201302024","title":"铝合金凝固过程<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变的研究","volume":"34","year":"2013"},{"abstractinfo":"<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变(CET)的研究具有重要意义,数值模拟是其有效的研究方法之一.重点介绍了3种CET转变数值模拟模型--确定性模型、随机性模型和相场模型.指出了各种模型目前在该领域应用中存在的问题,并展望了其今后的发展方向.","authors":[{"authorName":"彭曙","id":"0452e032-6c10-45b1-880c-76816cf2b06d","originalAuthorName":"彭曙"},{"authorName":"卢锦堂","id":"55ffc8f8-7261-499a-abea-cec5edc677ca","originalAuthorName":"卢锦堂"},{"authorName":"王新华","id":"b7096558-1c22-43ba-b0c6-8450bbfd8dbe","originalAuthorName":"王新华"},{"authorName":"车淳山","id":"26fae62a-fb66-4141-a84a-5a9ea1f69a83","originalAuthorName":"车淳山"}],"doi":"","fpage":"1","id":"6f889b4a-bad9-4df7-abce-3dff638f7abf","issue":"4","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"2d1656ac-fc93-4d78-a061-e36b94b99748","keyword":"<span style=\"color:red\">柱状晶</span>","originalKeyword":"柱状晶"},{"id":"a50c7a8a-84b0-4f36-87e5-635df8c779cd","keyword":"<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>","originalKeyword":"等轴晶"},{"id":"14c2c1c9-88c0-4e58-a71f-9c7c1b79c7bf","keyword":"<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变","originalKeyword":"柱状晶向等轴晶转变"},{"id":"3eac7cef-be43-40b2-8358-cfcc1c8215b8","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"cldb200804001","title":"<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变的数值模拟研究进展","volume":"22","year":"2008"},{"abstractinfo":"采用扩散支配相变动力学方法对Fe-Bi-Mn系易切削合金侧向快速凝固过程进行数值研究.建立对流扩散-多相相变体系三维凝固模型,考虑固、液、气三相扩散流动相变对合金凝固的影响,模拟研究合金中MnS和Bi (易切削相) 的<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span>晶形成过程.结果表明:合金凝固过程中MnS和Bi的<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span>晶形成模式强烈受对流扩散和多相相变影响;对流扩散为正值处,溶质的多相质量相变速率较大且富集程度较低,流动稳定易形成<span style=\"color:red\">柱状晶</span>;对流扩散为负值处,溶质的多相质量相变速率较小且富集程度较高,当<span style=\"color:red\">晶</span>尖处溶质富集到一定程度,对流扩散与多相相变产生的紊流使<span style=\"color:red\">柱状晶</span>尖端断裂,成为<span style=\"color:red\">等</span><span style=\"color:red\">轴</span>晶形核<span style=\"color:red\">中心</span>,此处为<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>稳定形成区域.","authors":[{"authorName":"何银花","id":"617c926c-40f9-4ec6-93cb-6a8244d57ae1","originalAuthorName":"何银花"},{"authorName":"王发展","id":"16cde2e8-d5b5-4c05-ad49-c7c1ab8ab9ae","originalAuthorName":"王发展"}],"doi":"10.11868/j.issn.1001-4381.2015.000367","fpage":"104","id":"f0b8c09c-c349-4ac7-b3fa-14341f6ff746","issue":"6","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"f179567c-f293-42a5-9956-6132f7722e0c","keyword":"Fe-Bi-Mn系合金","originalKeyword":"Fe-Bi-Mn系合金"},{"id":"d09caf4c-920f-4cc0-92b4-3c151e11d68a","keyword":"凝固","originalKeyword":"凝固"},{"id":"655fa62e-a686-4763-8b59-6aac882f860a","keyword":"对流扩散","originalKeyword":"对流扩散"},{"id":"22a3cef0-8377-49b9-b7f2-a30c96e32692","keyword":"多相相变","originalKeyword":"多相相变"}],"language":"zh","publisherId":"clgc201706016","title":"对流扩散-多相相变体系内<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span>晶形成过程的数值模拟","volume":"45","year":"2017"},{"abstractinfo":"由于激光熔覆金属层的性能在很大程度上是由显微组织决定的,预测和控制显微组织的变化就显得尤为重要,为此需要对熔覆金属层晶粒形态的演变进行研究.重点综述了激光熔覆金属层<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变的Hunt模型和Gaumann模型,利用这两个模型计算出的临界温度梯度和凝固速度可用来预测晶粒的具体形态,为选择试验参数提供依据;同时简单介绍了国内在<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变模型方面的研究,最后提出了研究中存在的问题和今后的研究方向.","authors":[{"authorName":"李大生","id":"42d16e6d-0610-4eaf-b710-e559bc99f8cd","originalAuthorName":"李大生"},{"authorName":"刘继常","id":"0791cc26-9654-4931-a456-24d708b0b8e5","originalAuthorName":"刘继常"}],"doi":"10.3969/j.issn.1000-3738.2008.02.003","fpage":"8","id":"9e59c17e-8dda-4ee1-a973-7874b11eaf4a","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":"3c1b05be-f5ca-4ff6-a9e6-42d22a7bc606","keyword":"激光熔覆","originalKeyword":"激光熔覆"},{"id":"a64abb8b-976b-4be8-a055-f8fffdd2354e","keyword":"<span style=\"color:red\">柱状晶</span>","originalKeyword":"柱状晶"},{"id":"dbcf5682-8bd4-45ce-b5d6-4ded05041a81","keyword":"<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>","originalKeyword":"等轴晶"}],"language":"zh","publisherId":"jxgccl200802003","title":"激光熔覆金属层<span style=\"color:red\">柱状晶</span>/<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变模型的研究进展","volume":"32","year":"2008"},{"abstractinfo":"<p>基于Eulerian-Eulerian方法, 阐述了简化枝晶状<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>、<span style=\"color:red\">柱状晶</span>以及金属液三相完全混合的凝固模型. 模型考虑了<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>的移动及<span style=\"color:red\">柱状晶</span>对等<span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>的捕获, 跟踪了<span style=\"color:red\">柱状晶</span>尖端的位置并考虑了<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>和<span style=\"color:red\">柱状晶</span>的相互竞争生长, 因此该模型具备了预测<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变(CET)的能力; 为了在不过量增加计算量的前提下提高模型的精度, 模型对等<span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>采取了简单的枝<span style=\"color:red\">晶</span>化处理, 即采用简化方法描述<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>包络线内固相分数. 分别模拟了3.25和25 t钢锭的凝固过程, 成功预测了大型钢锭凝固过程所形成的底部锥形负<span style=\"color:red\">偏析</span>、“类-A型”<span style=\"color:red\">偏析</span>以及CET<span style=\"color:red\">等</span>现象. 分析认为长细形状铸锭中出现的顶部负<span style=\"color:red\">偏析</span>区, 是由于凝固后期所形成的局部小钢锭及<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>在其内部的沉积聚集而成.</p>","authors":[{"authorName":"李军","id":"308924a9-170c-4b40-986e-1e315f8363cd","originalAuthorName":"李军"},{"authorName":"葛鸿浩","id":"2d8583e1-2418-4ebc-be6b-7df58723a364","originalAuthorName":"葛鸿浩"},{"authorName":"GE Honghao","id":"bd77d2c7-8db9-4c8e-b35e-69559d4164df","originalAuthorName":"GE Honghao"},{"authorName":"WU Menghuai","id":"a624ed4e-1047-4526-b01d-6cb815a80769","originalAuthorName":"WU Menghuai"},{"authorName":"李建国","id":"cfe25739-06e4-4022-a621-ea23ea542671","originalAuthorName":"李建国"}],"categoryName":"Orginal Article","doi":"10.11900/0412.1961.2015.00627","fpage":"1096","id":"40c93dbb-e481-4000-8c4e-f728143d04e9","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":"65eecfcd-af07-47f5-8713-a4f344a8a73d","keyword":"数值模拟","originalKeyword":"数值模拟"},{"id":"f921ed32-1554-4dd5-ac13-cb1d3324e1cc","keyword":"宏观<span style=\"color:red\">偏析</span>","originalKeyword":"宏观偏析"},{"id":"75b3f922-4e3c-48d0-9a24-d959e48a37ab","keyword":"钢锭","originalKeyword":"钢锭"},{"id":"ae41de1b-32ab-4565-b719-00ba353d6a37","keyword":"晶粒运动","originalKeyword":"晶粒运动"},{"id":"19e47424-84bb-41d4-b932-64699e937d8b","keyword":"CET","originalKeyword":"CET"}],"language":"zh","publisherId":"C20150627","title":"基于热溶质对流及晶粒运动的<span style=\"color:red\">柱状晶</span>-非球状<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>混合三相模型<sup>*</sup>","volume":"52","year":"2016"},{"abstractinfo":"基于Eulerian-Eulerian方法,阐述了简化枝晶状<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>、<span style=\"color:red\">柱状晶</span>以及金属液三相完全混合的凝固模型.模型考虑了<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>的移动及<span style=\"color:red\">柱状晶</span>对等<span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>的捕获,跟踪了<span style=\"color:red\">柱状晶</span>尖端的位置并考虑了<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>和<span style=\"color:red\">柱状晶</span>的相互竞争生长,因此该模型具备了预测<span style=\"color:red\">柱状晶</span>向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变(CET)的能力;为了在不过量增加计算量的前提下提高模型的精度,模型对等<span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>采取了简单的枝<span style=\"color:red\">晶</span>化处理,即采用简化方法描述<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>包络线内固相分数.分别模拟了3.25和25t钢锭的凝固过程,成功预测了大型钢锭凝固过程所形成的底部锥形负<span style=\"color:red\">偏析</span>、“类-A型”<span style=\"color:red\">偏析</span>以及CET<span style=\"color:red\">等</span>现象.分析认为长细形状铸锭中出现的顶部负<span style=\"color:red\">偏析</span>区,是由于凝固后期所形成的局部小钢锭及<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>在其内部的沉积聚集而成.","authors":[{"authorName":"李军","id":"af8a795c-f1eb-4e25-9d93-cafcd59d1d6a","originalAuthorName":"李军"},{"authorName":"葛鸿浩","id":"7e859ccf-71d8-4cfa-8ab9-51d0b566d98f","originalAuthorName":"葛鸿浩"},{"authorName":"WU Menghuai","id":"697bf9c0-a7d9-4699-8272-bf3c984598dc","originalAuthorName":"WU Menghuai"},{"authorName":"LUDWIG Andreas","id":"5e0f720a-bf83-4f49-9484-0d7b67ce5463","originalAuthorName":"LUDWIG Andreas"},{"authorName":"李建国","id":"616ff6b6-203d-4344-8bc6-30bdc99f0798","originalAuthorName":"李建国"}],"doi":"10.11900/0412.1961.2015.00627","fpage":"1096","id":"940726d0-7a53-4bbf-975a-91815a48600c","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":"0b67f141-699c-454d-a58a-fcb07c68f4cd","keyword":"数值模拟","originalKeyword":"数值模拟"},{"id":"5038ed9e-ff1b-4650-b58b-cf66f69fa36d","keyword":"宏观<span style=\"color:red\">偏析</span>","originalKeyword":"宏观偏析"},{"id":"77841d1a-5aec-46f9-95eb-7a366acea90e","keyword":"钢锭","originalKeyword":"钢锭"},{"id":"5e249b8f-bcc6-4cdf-a1ce-7506db743b97","keyword":"晶粒运动","originalKeyword":"晶粒运动"},{"id":"0e52d100-35d9-4874-bb7a-d279b2b434fa","keyword":"CET","originalKeyword":"CET"}],"language":"zh","publisherId":"jsxb201609009","title":"基于热溶质对流及晶粒运动的<span style=\"color:red\">柱状晶</span>-非球状<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>混合三相模型","volume":"52","year":"2016"},{"abstractinfo":"研究了α-Sialon<span style=\"color:red\">柱状晶</span>制备过程.结果表明,α-Sialon<span style=\"color:red\">柱状晶</span>可以通过无压烧结和酸洗的方法制备得到.α-Sialon<span style=\"color:red\">柱状晶</span>形貌与添加剂种类有关,选用轻稀土氧化物为添加剂制得的α-Sialon<span style=\"color:red\">柱状晶</span>具有较小的直径和较大的长径比,而选用重稀土氧化物为添加剂的α-Sialon<span style=\"color:red\">柱状晶</span>的直径较大,长径比较小.文中就添加剂种类对α-Sialon<span style=\"color:red\">柱状晶</span>形貌的影响进行了讨论.","authors":[{"authorName":"黄清伟","id":"6cca7f91-b8f5-4652-8e33-3958d97b2e8c","originalAuthorName":"黄清伟"},{"authorName":"王佩玲","id":"0f144859-40c0-4120-8a51-7176d0941c41","originalAuthorName":"王佩玲"},{"authorName":"程一兵","id":"58c414f6-b152-4695-899b-dff67fed52c6","originalAuthorName":"程一兵"},{"authorName":"严东生","id":"506dfe4f-742f-42cf-9cf1-63c8b6ca44ec","originalAuthorName":"严东生"}],"doi":"10.3321/j.issn:1000-324X.2002.01.006","fpage":"35","id":"47e3f3db-12ea-4293-92a4-345043f4b858","issue":"1","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"42fc1de4-5751-4326-b1f3-3140c2697459","keyword":"<span style=\"color:red\">柱状晶</span>","originalKeyword":"柱状晶"},{"id":"4d576767-8b7f-4489-a220-d16419797ff6","keyword":"α-Sialon","originalKeyword":"α-Sialon"},{"id":"5667de44-efa3-4df9-931d-65678197fd14","keyword":"氮陶瓷","originalKeyword":"氮陶瓷"}],"language":"zh","publisherId":"wjclxb200201006","title":"α-Sialon<span style=\"color:red\">柱状晶</span>的制备","volume":"17","year":"2002"},{"abstractinfo":"为控制油井管用连铸圆坯的质量，基于薄片移动法建立了连铸圆坯凝固传热数学模型，并应用Procast软件的CA-FE模块对37Mn5钢150mm圆坯凝固组织进行了模拟。<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率模拟结果与工业试验检测结果相一致，据此，建立了<span style=\"color:red\">柱状晶</span>-<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变判据。基于此判据的<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率预测结果表明，降低过热度、提高拉速和降低二冷零段冷却水分配比均能够降低固液混合区的温度梯度，扩大过冷区范围，有利于晶体的形核与长大，进而阻止<span style=\"color:red\">柱状晶</span>的生长，使<span style=\"color:red\">柱状晶</span>提前向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变，<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率提高。综合考虑圆坯<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率、表面和内部裂纹控制及浇铸安全和生产率，37Mn5钢150mm圆坯合适的连铸工艺参数为：过热度为(20±5)℃，拉速为25m·min-1，二冷水分布为35∶28∶26∶11。","authors":[{"authorName":"闵义","id":"91150e13-5baf-45d2-89f2-37acf232d969","originalAuthorName":"闵义"},{"authorName":"，刘承军，王德永，姜茂发","id":"5892d056-2bff-4ac6-a554-1172f5c22ea3","originalAuthorName":"，刘承军，王德永，姜茂发"}],"categoryName":"|","doi":"","fpage":"38","id":"5523a719-51a4-463c-9de8-a4732981ea01","issue":"10","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"e06a6903-b69e-4599-97f7-682b0f71d22a","keyword":"37Mn5钢 ","originalKeyword":"37Mn5钢 "},{"id":"eb703d27-cc1c-4d1b-bd41-5ef477be473c","keyword":" continuous casting ","originalKeyword":" continuous casting "},{"id":"b86237d7-60ad-4e31-a54a-6459f8fede68","keyword":" round billet ","originalKeyword":" round billet "},{"id":"46821f10-c57e-488f-b721-b7b1e3a0f6e6","keyword":" mathematical simulation ","originalKeyword":" mathematical simulation "},{"id":"f9448a29-5aed-4964-95ad-91f40ebb2e82","keyword":" equiaxed crystal ratio ","originalKeyword":" equiaxed crystal ratio "},{"id":"18a626f7-7f36-4d59-98d6-fe2e2d00feb5","keyword":" prediction","originalKeyword":" prediction"}],"language":"zh","publisherId":"1001-0963_2011_10_9","title":"37Mn5连铸圆坯<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率预测","volume":"23","year":"2011"},{"abstractinfo":"为控制油井管用连铸圆坯的质量，基于薄片移动法建立了连铸圆坯凝固传热数学模型，并应用Procast软件的CA—FE模块对37Mn5钢Ф150mm圆坯凝固组织进行了模拟。<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率模拟结果与工业试验检测结果相一致，据此，建立了<span style=\"color:red\">柱状晶</span>-<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变判据。基于此判据的<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率预测结果表明，降低过热度、提高拉速和降低二冷零段冷却水分配比均能够降低固液混合区的温度梯度，扩大过冷区范围，有利于晶体的形核与长大，进而阻止<span style=\"color:red\">柱状晶</span>的生长，使<span style=\"color:red\">柱状晶</span>提前向<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>转变，<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率提高。综合考虑圆坯<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率、表面和内部裂纹控制及浇铸安全和生产率，37Mn5钢Ф150mm圆坯合适的连铸工艺参数为：过热度为（20±5）℃，拉速为2．5m·min^-1，二冷水分布为35：28：26：11。","authors":[{"authorName":"闵义","id":"71e373d2-18ba-41ed-930e-f3d1be2d71df","originalAuthorName":"闵义"},{"authorName":"刘承军","id":"47d5f087-725f-4ccd-886a-5ee2df93d4d8","originalAuthorName":"刘承军"},{"authorName":"王德永","id":"e09888aa-6748-4138-b7c6-5006bc6d873a","originalAuthorName":"王德永"},{"authorName":"姜茂发","id":"30838e8c-d0d9-45d1-ae8c-b05ea7fb491c","originalAuthorName":"姜茂发"}],"doi":"","fpage":"38","id":"fbe9185a-4d2b-4414-93e4-a65170bdd668","issue":"10","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"c007ea4c-25d9-493a-a454-68742eddaa5b","keyword":"37Mn5钢","originalKeyword":"37Mn5钢"},{"id":"cb625f05-26b9-40f3-8603-4a29ded11978","keyword":"连铸","originalKeyword":"连铸"},{"id":"06a49ff2-4389-4e93-8df6-a2cc641a2406","keyword":"圆坯","originalKeyword":"圆坯"},{"id":"f9aa596f-d9fd-4b9b-a69b-a5e9ebf97485","keyword":"数学模拟","originalKeyword":"数学模拟"},{"id":"2ef27359-fc03-4a29-aace-41eeaa080d9a","keyword":"<span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率","originalKeyword":"等轴晶率"},{"id":"fd92ed35-7846-44cf-b93b-d0ebb6de80eb","keyword":"预测","originalKeyword":"预测"}],"language":"zh","publisherId":"gtyjxb201110009","title":"37Mn5连铸圆坯<span style=\"color:red\">中心</span><span style=\"color:red\">等</span><span style=\"color:red\">轴</span><span style=\"color:red\">晶</span>率预测","volume":"23","year":"2011"}],"totalpage":7438,"totalrecord":74375}