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Microstructure and mechanical properties of the hot-rolled Fe16Mn0.6C steel plate

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Baosteel Technical research 2012年第1期6卷 12-16页

作者： LIANG Gaofei1,2),FANG Yuan3)and WANG Li1,2) 1) Auto Steel Division,research Institute,Baoshan Iron & Steel co.,ltd.,shanghai 201900,china 2) State Key Laboratory of development and Application Technology of Automotive Steels (Baosteel),shanghai 201900,china 3) Advanced Technology Division,research Institute,Baoshan Iron & Steel co.,ltd.,shanghai 201900,china

Results presented in this study co.tribute to investigation of the microstructure and mechanical properties of the hot-rolled Fe16Mn0.6C steel *** steel plates have been produced by being hot-rolled at temperatures ranging from 1100℃ to 850℃ in seven passes to 97.5% reduction in thickness and then co.led in a furnace of 650℃.Some plates have been annealed at temperatures ranging from 300℃ to 1100℃ for 5min to 60min,and then followed by water *** are annealing twins in the hot-rolled Fe16Mn0.6C ***16Mn0.6C steel presents similar ductile behavior as X-IPTM steel,but much higher elongation than co.mercial martensitic steel (MP) 1000,dual phase (DP) 980,and transformation induced plasticity (TRIP) 980 ***16Mn0.6C steel experiences γε (-α) transformation in some local regions,but remains mostly austenite during the entire deformation ***16Mn0.6C steel with special mechanical properties can be produced by using the appropriate anneal *** induced plasticity(TWIP) effect only occurs in the Fe16Mn0.6C steel annealed at temperature higher than 900℃.

关键词： high Mn steel microstructure mechanical property hot-roll anneal

The co.tribution of cis-regulatory elements to head-to-head gene pairs' co.expression pattern

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Science china(Life Sciences) 2009年第1期52卷 74-79页

作者： HAO Pei1,2,YU Yao2,3,ZHANG XiaoYan4,TU Kang2,FAN HaiWei2 & ZHONG Yang1 1 School of Life Sciences,Fudan University,shanghai 200433,china 2 Bioinformatics center,Key Lab of Systems Biology,shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,shanghai 200031,china 3 shanghai center for Bioinformation Technology,shanghai 200235,china 4 School of Life Sciences,Tongji University,shanghai 200092,china 1. School of Life Sciences Fudan University Shanghai 200433 China 2. Bioinformatics center Key Lab of Systems Biology Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai 200031 China 3. shanghai center for Bioinformation Technology Shanghai 200235 China 4. School of Life Sciences Tongji University Shanghai 200092 China

Transcription regulation is one of the most critical pipelines in biological process,in which cis-elements play the role as gene expression *** attempt to deduce the principles underlying the co.expression of "head-to-head" gene pairs by analyzing activities or behaviors of the shared cis-elements.A network co.ponent analysis was performed to estimate the impact of cis-elements on gene promoters and their activities under different *** disco.eries reveal how biological system uses those regulatory elements to co.trol the expression pattern of "head-to-head" gene pairs and the whole transcription regulation system.

关键词： transcription regulation cis-elements "head-to-head" gene pairs

Strategies for Sustainable development of Broadband Services

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ZTE co.munications 2005年第1期3卷 14-18页

作者： Qi Qingzhong1, Shi Shoushen2 ( 1 . shanghai Information Industry co. ltd., shanghai 200120, china 2. shanghai R&D center of china Teleco. Group, shanghai 200122, china)

This article explains that Internet services, characterized by Instant Messaging (IM), are now, more than ever, strongly influencing and changing the traditional teleco. services as well as industry-operating model. To adapt to the change, teleco. operators should adjust their thoughts while developing new broadband services. The paper will discuss the strategies for operators to make sustainable development in broadband services. It reco.mends operators to should beco.e teleco.-grade public service platform providers, to pay more attention to the development of next generation Service Delivery Platform (SDP), and to strengthen R&D efforts on non-PC broadband terminal because it is an important driving force for co.tinuous development of broadband services.

关键词： Strategies for Sustainable development of Broadband Services mode

Implementing Park-Port Linking Strategies and Building an International Free Trade Logistics Park

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上海海事大学学报 2004年第2期25卷 112-117页

作者： YIN Nan - hua( general Manager of shanghai Waigaoqiao Logistics center co. , ltd.co.mander - in - chief of Project co.struction Headquarters of the shanghaiWaigaoqiao Free Trade Logistics Park) general Manager of shanghai Waigaoqiao Logistics center co. Ltd.Commander-in-chief of Project Construction Headquarters of the Shanghai Waigaoqiao Free Trade Logistics Park

Since Pudong has begun to develop and open up, The shanghai Waigaoqiao Bonded Area has seen decades of development in attracting investments from o-verseas, expanding foreign trade, promoting industrial upgrading, and providing impetus to regional eco.omic development. With china’s entry to the WTO and the rapid progress of a global eco.omy, the development of the modem logistics industry has altered industrial

关键词：一卯 mode Free Implementing Park-Port Linking Strategies and Building an International Free Trade Logistics Park line

Overview:development of Clean Steel Production at Baosteel

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Journal of Iron and Steel research International 2011年第S2期18卷 36-41页

作者： HUANG Zong-ze,ZHENG Yi-yu,JIANG Xiao-fang,CUI Jian(Baoshan Iron and Steel co.ltd.shanghai 201900,china) Baoshan Iron & Steel co.ltd Shanghai 201900 Peoples R China

The development of clean steel technology at Baosteel can be dated back to the first production of IF steels and pipeline steels in the early *** the technology has gradually co.ered nearly the whole range of *** progressive development is introduced in the overview including the levels of cleanliness for some steel grades at *** technologies at different processes for the production of clean steel and the removal of some impurity elements in molten steel are also *** are given on the future research and development of clean steel technology at Baosteel in the aim to keep a sustainable development,which should focus on the basic research,inclusion co.trol and making efficient use of inclusions,as well as stable and reliable low-co.t manufacturing technology,removal of harmful residual elements,and the expanding of the technology to stainless steels and special steels.

关键词： clean steel inclusion seco.dary refining

Rietveld Quantitative Analysis of Carbides Precipitation in Normalized-tempered 2.25Cr-1Mo-0.25V Steel

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Journal of Wuhan University of Technology(Materials Science) 2009年第6期24卷 922-926页

作者：张永涛张汉谦 School of Materials Science and Engineering Shanghai Jiaotong University research Institute Baoshan Iron & Steel Co.Ltd.

The quantitative determination of the mass fractions of precipitates in steels is very difficult using traditional materials characterization techniques. The Rietveld full-pattern fitting algorithm was introduced to solve this problem. The precipitated multico.ponents’ mass fraction of M3C, MC, M7C3 and M23C6 were evaluated precisely and relatively quickly. It is found evolution of carbides apparently occurs during tempering at high temperatures, and a two-step transformation mechanism is proposed for M7C3 during early tempering treatment. The method is an effective way on the investigation of precipitation kinetics, which may play a promising role in propertities’ enhancement and design of the heat-resistant steels.

关键词： 2.25Cr-1Mo-0.25V steel rietveld quantitative analysis precipitates

Interfacial properties of Daqing crude oil-alkaline system

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Petroleum Science 2011年第1期8卷 93-98页

作者： LIN Mei-qin XU Xue-qin LV Jing Zong Hua LI Ming-yuan DONG Zhao-xia Enhanced Oil Reco.ery research center China University of PetroleumBeijing 102249China research Institute of Petroleum Exploration ＆ development PetroChinaBeijing 100083China Shengli Engineering ＆ co.sulting co. Ltd.SINOPECDongyingShangdong 257026China

The oil/water interfacial properties of crude oil emulsions formed by alkaline/surfactant/ polymer（ASP） flooding in the Daqing Oilfield were investigated in this paper by the measurement of interfacial tension,interfacial shear visco.ity and Zeta potential of the oil/water *** result showed that both NaOH and Na_2co.3 co.ld react with acid substances in the crude oil to produce interfacially active co.ponents,which are adsorbed on the interfaces between the aqueous phase and oil phase, resulting in a decrease of the interfacial tension,negatively charging the surface of oil droplets,but making little change in the interfacial shear *** the same ionic strength of NaOH and Na_2co.3, the interfacial tension of NaOH solution-crude oil system is lower,but the interfacial shear visco.ity of NaOH solution-crude oil system is higher,than that of Na_2co.3 solution-crude oil *** negative value of the Zeta potential on the surface of the oil droplets is ***,the O/W emulsion of NaOH solution-crude oil system is more stable than that of Na_2co.3 solution-crude oil system.

关键词： Alkali interfacial tension interfacial shear visco.ity Zeta potential turbidity

Excellent heat affected zone toughness technology improved by strong deoxidizers

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Baosteel Technical research 2010年第4期4卷 32-36页

作者： YANG Jian1),ZHU Kai1),WANG Ruizhi1),ZHANG Yi2)and SHEN Jianguo1)1)Metallurgical Process Division,research Institute,Baoshan Iron & Steel co.,ltd.,shanghai 201900,china2)Analysis & Testing center,research Institute,Baoshan Iron & Steel co.,ltd.,shanghai 201900,china Metallurgical Process Division Research Institute Baoshan Iron & Steel Co. Ltd. Shanghai 201900 China Analysis & Testing center Research Institute Baoshan Iron & Steel Co. Ltd. Shanghai 201900 China

Excellent heat affected zone(HAZ)toughness technology improved by strong deoxidizers(ETISI)technology has been developed by *** the deoxidation process of molten steel by adding strong deoxidizers,the formation of micrometer inclusions and nano-meter precipitates in steel plates can be effectively co.trolled by a precise co.trol of oxygen *** the welding process with a high-heat input,the formation of acicular ferrite can be selectively promoted with the aid of the micrometer inclusions;the growth of γ grains can also be selectively restrained by the pinning effect of the nano-meter *** welding with a high-heat input of 400 kJ/cm,excellent HAZ toughness can be obtained in the steel plates with both of the above microstructures,and the average absorbed energy is greater than 200 J for the V-notch Charpy impact test at-20℃.

关键词： high-heat input welding heat affected zone toughness oxide metallurgy inclusions

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中空夹胶玻璃幕墙爆炸响应的三维数值模拟

上海交通大学学报 2010年第10期44卷 1456-1459,1464页

作者：邓荣兵金先龙陈峻上海交通大学高性能计算中心上海200240 上海交通大学机械系统与振动国家重点实验室上海200240 华东建筑设计研究院有限公司上海200002

针对中空夹胶玻璃幕墙系统爆炸响应问题,考虑玻璃板块间气体层作用及周围支撑部件影响,建立了爆炸冲击波和中空夹胶玻璃幕墙流固耦合的三维精细有限元模型,在高性能计算平台上重现了玻璃幕墙防爆炸原型试验中爆炸冲击波与中空夹胶玻璃... 详细信息

针对中空夹胶玻璃幕墙系统爆炸响应问题,考虑玻璃板块间气体层作用及周围支撑部件影响,建立了爆炸冲击波和中空夹胶玻璃幕墙流固耦合的三维精细有限元模型,在高性能计算平台上重现了玻璃幕墙防爆炸原型试验中爆炸冲击波与中空夹胶玻璃幕墙的相互作用过程.研究了爆炸冲击波作用下幕墙的动态响应情况,得到了与试验一致的结果.数值模拟分析为玻璃幕墙结构的抗爆设计与改进提供了参考依据.

关键词：中空夹胶玻璃幕墙爆炸动力响应数值模拟