{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"建立了液固挤压Al2O3sf/LY12复合材料三维非稳态传热过程的有限元数学模型,并对其进行了三维热传导数值模拟,直观地显示出材料内部和表面在不同时刻、不同位置的三维温度场分布及其演变情况.模拟结果表明,坯料内部和表面的温度场在保压过程中分布均匀,而在挤压过程中则随时间推移而剧烈波动,从而造成坯料表面局部过热,由此导致制件表面龟裂现象的发生.模拟结果与实验结果基本吻合,为合理确定工艺参数和保证成形质量奠定了理论基础.","authors":[{"authorName":"王振军","id":"9ce22f2a-fbb9-4e50-8748-95244d164e9a","originalAuthorName":"王振军"},{"authorName":"齐乐华","id":"5fef898e-7666-4e3c-a218-8452495568ee","originalAuthorName":"齐乐华"},{"authorName":"周计明","id":"efa4eac9-8917-498d-b637-a2138d622cf9","originalAuthorName":"周计明"},{"authorName":"杨方","id":"990db8a2-1729-4c6b-85e8-4edee861acb2","originalAuthorName":"杨方"}],"doi":"10.3321/j.issn:0412-1961.2007.08.014","fpage":"857","id":"90d5d4ed-64d9-4681-ad02-bb1822b443c4","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":"db7543a7-1a65-4022-8ff8-608abd33a1a9","keyword":"Al2O3/LY12复合材料","originalKeyword":"Al2O3/LY12复合材料"},{"id":"bc5e5a4b-cb4f-4961-8468-b3b454c48a19","keyword":"液固挤压","originalKeyword":"液固挤压"},{"id":"6ae92ae9-84a4-494f-9c6c-d7c536e927be","keyword":"三维有限元法","originalKeyword":"三维有限元法"},{"id":"4f7d9fdd-7dee-44ea-bc29-9f0835002564","keyword":"温度场演变","originalKeyword":"温度场演变"},{"id":"11a4e698-66dc-42fe-aa30-5671f623c60c","keyword":"热传导","originalKeyword":"热传导"}],"language":"zh","publisherId":"jsxb200708014","title":"Al2O3sf/LY12复合材料液固挤压成形中温度场演变的三维有限元分析","volume":"43","year":"2007"},{"abstractinfo":"应用电阻法对试样快速加热,然后对其进行高温锻压,并结合实验过程及参数,基于deform-3D软件对F40船板钢高温锻压过程的温度场及组织演变进行模拟.结果表明,试样的辐射系数为0.7,与空气的换热系数为0.02 kW/m2·K,模具与试样的传热系数为16 kW/m2·K.模拟结果与实验测得的温度场结果吻合度较好,验证了计算机模拟的可靠性和准确性.同时,结合温度场对试样组织演变进行模拟,并通过实测验证了模拟的正确性和可靠性,对实际生产具有参考意义.","authors":[{"authorName":"李余飞","id":"bee5b1ca-e87b-465a-88a6-485c0aa06564","originalAuthorName":"李余飞"},{"authorName":"陈剑","id":"f452e92b-dbb2-491b-99e3-c9fb80026ce7","originalAuthorName":"陈剑"},{"authorName":"赵永桥","id":"322a2acc-b2f0-4407-9f75-f95c943e6022","originalAuthorName":"赵永桥"},{"authorName":"熊辉辉","id":"e677c035-2c05-444d-86e4-60c1278a299e","originalAuthorName":"熊辉辉"},{"authorName":"张恒华","id":"d64ee997-b4e1-4741-bf67-a9b625f983cf","originalAuthorName":"张恒华"}],"doi":"","fpage":"37","id":"272dc479-7a50-4652-80eb-48bf60dc5dfa","issue":"2","journal":{"abbrevTitle":"SHJS","coverImgSrc":"journal/img/cover/SHJS.jpg","id":"59","issnPpub":"1001-7208","publisherId":"SHJS","title":"上海金属"},"keywords":[{"id":"22008303-b689-4864-931b-6ba09b128d63","keyword":"F40钢","originalKeyword":"F40钢"},{"id":"40f67a2b-b246-4a5f-a0fa-bf93d9fac0c1","keyword":"高温锻压","originalKeyword":"高温锻压"},{"id":"a4a16ce4-5eb3-40c8-9e6f-beb5abe0d30a","keyword":"有限元模拟","originalKeyword":"有限元模拟"},{"id":"11ba9e47-a97c-4f6d-a9e2-e5938956ea7d","keyword":"温度场","originalKeyword":"温度场"},{"id":"014a4817-ba09-401a-bc7d-a2768bfb5e98","keyword":"组织演变","originalKeyword":"组织演变"}],"language":"zh","publisherId":"shjs201602008","title":"F40船板钢高温锻压温度场及组织演变模拟","volume":"38","year":"2016"},{"abstractinfo":"通过对碳热还原合成SiC冶炼炉温度场的数值模拟及实验,揭示了冶炼炉内温度场演变规律.研究表明,碳化硅合成过程中,热量以热源为中心呈辐射状向外传递,其合成温度(1600℃)等温面也逐渐向外扩大,表现为SiC的合成反应温区增大;SiC的大量合成发生在中后期,合成持续,SiC合成温区面积增加缓慢.合成时间过长,会导致已生成的SiC分解,容易形成实际生产中喷炉事故;适当比例的SiC分解,有利于形成高致密的碳化硅产品.","authors":[{"authorName":"陈杰","id":"4ad1a998-b68a-4df5-8abb-1c798b73e2a0","originalAuthorName":"陈杰"},{"authorName":"王晓刚","id":"a10299ec-cac4-4637-b7fb-a3b4afed763e","originalAuthorName":"王晓刚"}],"doi":"","fpage":"2212","id":"7a5afd02-a712-48d0-ac4a-cd78a89eea3d","issue":"11","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报 "},"keywords":[{"id":"57235dcc-671d-4ea2-9c09-83c4989892e2","keyword":"碳热还原法","originalKeyword":"碳热还原法"},{"id":"5bd30ba0-d1c5-468c-8a95-d57a750c767b","keyword":"SiC","originalKeyword":"SiC"},{"id":"5f16705b-7d7c-4476-9b44-c3c7c97a4fe8","keyword":"温度场","originalKeyword":"温度场"},{"id":"d5914c71-1ab7-467a-978b-d551b20ec98a","keyword":"演变规律","originalKeyword":"演变规律"},{"id":"f0549610-f1ca-4e63-b4f3-ef90dbee8ad9","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gsytb201311008","title":"碳热还原合成SiC温度场演变规律研究","volume":"32","year":"2013"},{"abstractinfo":"本文旨在进行SPS过程中粉末颗粒内部温度场的模拟及颈部演变的研究。建立了用于模拟导电材料在SPS过程中粉末颗粒的热传导行为的计算模型。以球形铜粉为研究对象,对颗粒内部温度分布和颈部尺寸变化进行了模拟计算和分析,模拟结果表明SPS过程中颗粒内部的温度分布极不均匀,颈部尺寸的长大速度在烧结过程中并不一致。不同烧结阶段颈部尺寸变化的模拟结果和实验测定结果基本吻合,证明了本文模型的合理性。本文研究结果揭示了SPS过程中烧结颈部形成和长大的本质机制。","authors":[{"authorName":"刘雪梅","id":"51c57d2b-4460-4e40-890d-51abff44caaf","originalAuthorName":"刘雪梅"},{"authorName":"宋晓艳","id":"9d868914-2479-4f8c-b43b-e0f135035847","originalAuthorName":"宋晓艳"},{"authorName":"张久兴","id":"be034a66-ca3f-4eb5-a934-794f4da0612d","originalAuthorName":"张久兴"}],"categoryName":"|","doi":"","fpage":"757","id":"ac49bef8-5967-4c7c-8ea0-8b28812270c1","issue":"7","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"b9df5aa0-3cc8-4895-bdbe-5aa0264e3a81","keyword":"放电等离子烧结","originalKeyword":"放电等离子烧结"},{"id":"4dc8c17e-c128-4972-9ec8-ecfb152566c5","keyword":"neck size","originalKeyword":"neck size"},{"id":"8d3b578f-ed2f-4354-a106-a6d7566d6525","keyword":"temperature distribution","originalKeyword":"temperature distribution"}],"language":"zh","publisherId":"0412-1961_2006_7_12","title":"放电等离子烧结过程中粉末颗粒内部温度场的模拟及颈部演变","volume":"42","year":"2006"},{"abstractinfo":"综合考虑传热、变形及变形过程中的再结晶之间的相互影响,对C-Mn钢在CSP热连轧过程的温度场进行了计算机模拟.确定了各种工艺条件下的传热边界条件及其对应的换热系数关系式,计算出了轧件变形过程中温度变化和温度场分布.算例表明,模拟计算具有较好的精度,能为进一步模拟带钢轧后组织演变和性能预测分析提供计算基础.","authors":[{"authorName":"唐广波","id":"190b0e8f-75cc-4102-8a75-33caa6da49ee","originalAuthorName":"唐广波"},{"authorName":"刘正东","id":"cbb1b71d-2fc7-4bb9-b702-8292a63474b3","originalAuthorName":"刘正东"},{"authorName":"董瀚","id":"74462c94-e5b6-4723-9924-2b925e65231a","originalAuthorName":"董瀚"},{"authorName":"王中丙","id":"e707dc43-fcd7-4b72-a596-b82cb8f5b335","originalAuthorName":"王中丙"},{"authorName":"陈顺安","id":"9fab1ec4-f5ee-4499-a2ae-a943a07ad17b","originalAuthorName":"陈顺安"},{"authorName":"孙文填","id":"d4352011-4c19-4d50-9e10-9ae9404c24a7","originalAuthorName":"孙文填"},{"authorName":"张若生","id":"846d93d0-d1ae-4669-b5f4-6a20ab31b1a7","originalAuthorName":"张若生"},{"authorName":"谢立群","id":"377e6642-3bf0-4016-b6a6-c8872b50a899","originalAuthorName":"谢立群"},{"authorName":"黄志勇","id":"4894fc5b-4077-4e72-b1aa-d57d0bb54cda","originalAuthorName":"黄志勇"},{"authorName":"康永林","id":"dacc6574-ba5d-452d-b68c-236b0b6d84e7","originalAuthorName":"康永林"}],"doi":"","fpage":"38","id":"1a47099a-dd83-4307-bccf-e67a040b4136","issue":"8","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"de9298ed-0f52-457e-8c12-520654d691ce","keyword":"CSP","originalKeyword":"CSP"},{"id":"35d5c4e7-12a5-442e-8b9d-13164ae21e6b","keyword":"温度场模拟","originalKeyword":"温度场模拟"},{"id":"3d8e42ef-e264-4efc-99f1-6ce34f59d674","keyword":"换热系数","originalKeyword":"换热系数"},{"id":"dd4b141b-7cb7-4c83-b47a-74fc3d37242a","keyword":"流变应力","originalKeyword":"流变应力"},{"id":"cb995b96-640c-4040-8c30-9b72cc9289d9","keyword":"再结晶动力学","originalKeyword":"再结晶动力学"}],"language":"zh","publisherId":"gt200308008","title":"CSP热轧过程温度场模拟","volume":"38","year":"2003"},{"abstractinfo":"通过对实验室模拟现场回转窑的6组不同温度点下焙烧渣样品进行钒尖晶石形貌变化、物相含量变化、钒元素的赋存规律及不同温度点下物相转变机理的研究。钒尖晶石形貌变化结果表明,整个焙烧过程中钒尖晶石形貌变化经历了致密光滑块状-氧化铁的镶边结构-钒尖晶石完全直接为隐晶质物质-小颗粒物质重新组合并且长大5个过程;矿物自动解理分析仪(MLA)物相含量分析数据显示焙烧过程中石灰石、铁橄榄石、钒尖晶石和白云石在逐渐减少,普通辉石相是逐渐增加,而氧化铁固溶体、部分氧化钒尖晶石、钒酸钙固溶体和铁板钛矿固溶体的变化趋势是先增加后减少;钒元素的赋存形式规律为绝大多数钒元素赋存于氧化物中,占到总量的85%左右,其次赋存于硅酸盐中,占到钒总含量的14%左右,还有极少部分分布于碳酸盐等矿物中;整个焙烧过程物相变化机理主要分为铁元素向外扩散-氧元素向内扩散-氧化物的化合过程-化合物雏形晶体的长大4个反应过程。","authors":[{"authorName":"史志新","id":"c62252ad-f040-470f-8631-714bd5a41f9b","originalAuthorName":"史志新"}],"doi":"10.13228/j.boyuan.issn1000-7571.009670","fpage":"39","id":"33296735-b4c5-47fc-aa4f-52c7098b3c5e","issue":"4","journal":{"abbrevTitle":"YJFX","coverImgSrc":"journal/img/cover/YJFX.jpg","id":"71","issnPpub":"1000-7571","publisherId":"YJFX","title":"冶金分析 "},"keywords":[{"id":"b40dc498-502c-4e39-8694-0d001e089fa7","keyword":"钒渣钙化焙烧","originalKeyword":"钒渣钙化焙烧"},{"id":"8ae37f45-0714-434a-903c-bea925e4f465","keyword":"钒尖晶石","originalKeyword":"钒尖晶石"},{"id":"382c7db8-94b1-477a-89b4-2ee409f2a6ab","keyword":"机理分析","originalKeyword":"机理分析"},{"id":"ebf58094-12de-472e-b53c-211b6bfbd1ad","keyword":"矿物自动解理分析仪(MLA)","originalKeyword":"矿物自动解理分析仪(MLA)"}],"language":"zh","publisherId":"yjfx201604009","title":"回转窑不同温度场钒渣物相演变规律探讨","volume":"36","year":"2016"},{"abstractinfo":"利用外约束型模拟空间热循环温度场试验设备对1420Al-Li合金焊缝进行了热循环(77~393 K)试验,测量了热循环前后焊缝的拉伸性能,并观察了热循环前后焊缝的显微组织,讨论了热循环对焊缝组织和拉伸性能的影响.试验结果表明,经1000次或3000次热循环后,焊缝的强度和延伸率显著降低.热应力使焊缝显微组织产生损伤,主要表现为从晶界处向晶内发射位错,在晶界处形成位错塞积群,晶粒内位错密度逐渐升高.随着热循环次数的增加,组织损伤的不断累积导致在晶界处产生的应力集中程度增大,这是导致合金焊缝强度和延伸率下降的主要原因.","authors":[{"authorName":"杨素媛","id":"87964ba9-e136-4515-8f8e-ea57a8fbe6bb","originalAuthorName":"杨素媛"},{"authorName":"耿洪滨","id":"4eb802b4-76e7-4509-b046-ca64702627b6","originalAuthorName":"耿洪滨"},{"authorName":"郭启雯","id":"543f7057-3dc4-4b9f-bfd1-015bed2783d9","originalAuthorName":"郭启雯"}],"doi":"10.3969/j.issn.0258-7076.2006.03.032","fpage":"411","id":"fa2a3a87-d752-4093-b8d7-0b5758f001e1","issue":"3","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"349034d7-2e22-49f4-978b-a3868ffb6088","keyword":"热循环","originalKeyword":"热循环"},{"id":"fff2a893-0f6d-4869-957b-bc7f9f08f952","keyword":"铝锂合金","originalKeyword":"铝锂合金"},{"id":"3c068781-e7a7-4e3b-99f3-5bde9a20f820","keyword":"焊缝","originalKeyword":"焊缝"},{"id":"83ee60e6-82e4-4676-ab35-101be6f89aa9","keyword":"显微组织","originalKeyword":"显微组织"},{"id":"4dd53539-4b9b-497d-9e25-6aaf685f6bd5","keyword":"拉伸性能","originalKeyword":"拉伸性能"}],"language":"zh","publisherId":"xyjs200603032","title":"热循环温度场作用下1420A1-Li合金焊缝组织和拉伸性能的演变规律","volume":"30","year":"2006"},{"abstractinfo":"温度场数学模型是层流冷却控制系统的核心.对层流冷却温度场模型的研究现状进行了评述,介绍了轧后层流冷却温度场的发展包括温度场的结构演变以及层流冷却换热机理的研究进展,介绍了层流冷却温度场与相变、应力/应变耦合计算及其应用效果,展望了温度场数学模型未来的发展方向.","authors":[{"authorName":"黄全伟","id":"51a59e45-60c3-4bc8-910c-a1d70b33eeff","originalAuthorName":"黄全伟"},{"authorName":"韩斌","id":"bf1b7e11-0eab-431e-b1d4-5b1db57cd8f2","originalAuthorName":"韩斌"},{"authorName":"谭文","id":"05d93f84-062d-44e8-b5e3-5679bb95b145","originalAuthorName":"谭文"},{"authorName":"汪水泽","id":"06737d56-6260-4258-9d37-ee37d56d4d3c","originalAuthorName":"汪水泽"},{"authorName":"阮安甫","id":"7b3cd6cd-3757-48f9-9f22-01eb60e62284","originalAuthorName":"阮安甫"}],"doi":"","fpage":"59","id":"0d874169-d950-4d89-9dab-31901c99f057","issue":"1","journal":{"abbrevTitle":"GTYJ","coverImgSrc":"journal/img/cover/GTYJ.jpg","id":"29","issnPpub":"1001-1447","publisherId":"GTYJ","title":"钢铁研究"},"keywords":[{"id":"fced7b2d-98a8-4b6b-8da5-893922cc3196","keyword":"层流冷却","originalKeyword":"层流冷却"},{"id":"0adf25d8-acce-41f2-bd72-9565dd297008","keyword":"数学模型","originalKeyword":"数学模型"},{"id":"cf7401bd-117f-4092-a5ea-73a6318b5937","keyword":"热轧","originalKeyword":"热轧"},{"id":"4e1ca051-ef13-4ecc-bc20-32807b0942a3","keyword":"换热系数","originalKeyword":"换热系数"},{"id":"6d135a44-dec4-484e-8220-99670fa1c841","keyword":"相变","originalKeyword":"相变"}],"language":"zh","publisherId":"gtyj201301016","title":"层流冷却温度场数学模型的研究现状","volume":"41","year":"2013"},{"abstractinfo":"建立了用于模拟导电材料在放电等离子烧结(SPS)过程中粉末颗粒热传导行为的计算模型.以球形铜粉为研究对象,对颗粒内部温度分布和颈部尺寸变化进行了模拟计算和分析,模拟结果表明:SPS过程中颗粒内部的温度分布极不均匀,烧结颈部的长大速率在烧结过程中并不一致.不同烧结阶段颈部尺寸变化的模拟结果和实验测定结果基本吻合.揭示了SPS过程中烧结颈部形成和长大的根本原因是颗粒接触部位的局部高温.","authors":[{"authorName":"刘雪梅","id":"fa52b1e7-7b95-4a34-bd45-cd40a62a0d43","originalAuthorName":"刘雪梅"},{"authorName":"宋晓艳","id":"f71a8493-0630-4866-bfdb-6c2e2baae8a6","originalAuthorName":"宋晓艳"},{"authorName":"张久兴","id":"d8c0bd63-6433-4748-af95-6cd52c6f5fd9","originalAuthorName":"张久兴"}],"doi":"10.3321/j.issn:0412-1961.2006.07.015","fpage":"757","id":"734b258b-e88d-4fb5-a098-bfccf1f668d9","issue":"7","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"4dd861fd-355f-445b-b4f8-ad90ed24197f","keyword":"放电等离子烧结(SPS)","originalKeyword":"放电等离子烧结(SPS)"},{"id":"823f16c1-50cc-4947-9e46-8f2593a5dbeb","keyword":"颈部尺寸","originalKeyword":"颈部尺寸"},{"id":"ff68c5b7-ba2e-4ea0-aa14-0487f872f58e","keyword":"温度分布","originalKeyword":"温度分布"}],"language":"zh","publisherId":"jsxb200607015","title":"放电等离子烧结过程中粉末颗粒内部温度场的模拟及颈部演变","volume":"42","year":"2006"},{"abstractinfo":"喷射铸造是一种先进的可用于制造高性能复合轧辊的技术,但复合轧辊界面冶金结合困难是这种新型工艺所面临的关键问题.通过计算机数值模拟研究喷射铸造过程中复合轧辊内部温度场及各种喷射工艺参数对温度场的影响.结果表明,辊芯预热温度、辊芯平移速度和喷射速率对温度场的影响较大.","authors":[{"authorName":"汪煜","id":"82614f94-d1a5-4a14-bcc0-1e59b47eaac8","originalAuthorName":"汪煜"},{"authorName":"崔成松","id":"253b0fb0-e382-4a5b-8564-3d2b857afbda","originalAuthorName":"崔成松"},{"authorName":"李庆春","id":"074888ca-313d-4e6c-a308-5987a903b2ae","originalAuthorName":"李庆春"},{"authorName":"张国庆","id":"c900bc99-0083-42ff-b71d-685268c4047a","originalAuthorName":"张国庆"},{"authorName":"汪武祥","id":"2415829d-803d-4727-a255-4a9f0a632583","originalAuthorName":"汪武祥"}],"doi":"10.3969/j.issn.1005-5053.2006.03.018","fpage":"88","id":"272a01ce-84be-42d5-adb4-73abfbd1a7f8","issue":"3","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":"dc50b0c3-fa53-4532-ad44-7673d61d358c","keyword":"喷射铸造","originalKeyword":"喷射铸造"},{"id":"32137130-8f64-43ae-b685-d56ba9415788","keyword":"复合轧辊","originalKeyword":"复合轧辊"},{"id":"21aac19e-b268-403b-a8f2-62cf397468ba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