superplastic相关论文
Mechanical problems of superplastic fill-forming bulge solved by one-dimensional tensile and two-dim
Because of the strong structural sensitivity of superplasticity, the deformation rule must be affected by stress-state. ......
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本文按薄壁类零件邗体积类零件的超塑成形分别介绍了超塑成形力学发展的新动向,并提出了看法。......
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The superplastic deformation behavior and microstructure evolution of electron beam welded 5A90 aluminum lithium alloy w......
介绍了超塑材料的发展,概述了超塑成形、扩散焊接及其组合工艺的原理和特点,并指出了此种加工工艺的优缺点。用超塑等温锻造、板材气......
为了借助计算机分析和模拟复杂的超塑成形过程,本文提出了一个用于测定超塑性金属材料参数m和K的等胀形高度法,并在文中推导了与该......
THEDIFFUSIONBONDINGOFTi-6AI-4VTITANIUMALLOYUNDERSUPERPLASTICCONDITION¥ZhangZhongyuan;CaiChenghe;LinZhaorong(DepartmentofMecha.........
THEDIFFUSIONBONDINGOFTi-6AI-4VTITANIUMALLOYUNDERSUPERPLASTICCONDITION¥ZhangZhongyuan;CaiChenghe;LinZhaorong(DepartmentofMecha.........
AnalysisandSimulationofSuperplasticSheetMetalBulgingbyFiniteElementMethodLiJingyi(李靖谊)ZhangZhongyuan(张中元)YunQiji(运启冀)WangWei.........
通过实验解读微淬火(超临界淬火)的本质:α→γ相变与磁畴瓦解同步;(高温型)板条马氏体相变与"司南鱼"超磁化共生;微淬火(微观层面)囊括了所......
采用工业纯铁中间层,在非真空、无保护气氛条件下,进行1.6%C—UHCS/40Cr的超塑性焊接试验。试验结果表明,采用工业纯铁中间层能提高1.6%C-U......
对HPb59-1铅黄铜进行了470℃保温8min冰盐水中冷却的简单超塑性处理,效果极为明显,在600℃,以0.5mm/min的速度拉伸,延伸率可达723%。用X......
基于对预置中间层的1.6C—UHCS/40Cr超塑性焊接工艺方案的优化设计,在非真空及无保护气氛下,进行了超塑性焊接工艺试验。试验结果表明:......
研究了不经任何预先处理的半硬态黄铜H62和铝合金LY12XZ超塑变形过程中的空洞及其对变形后室温机械性能的影响。实验表明:1,同一材料,在不同的超......
DISLOCATIONBEHAVIORINTHESUPERPLASTICDEFORMATIONOFALLOYAl-Li2091ZengMeiguang;WuQiuyun;ZhangBaojin;ZhangCaibei;CuiJianzhong(P.O.........
ANEWMODELFORCAVITYNUCLEATION①LiuZhiyiMechanicalDepartment,PetroleumUniversity,Dongying257062ABSTRACTBycorectevaluationoftheac.........
1INTRODUCTIONSuperplasticityofTiAlbasedaloyhasattractedmoreandmoreatention[1-3].Ithasbeenfoundthat,dynamicrecrystalizationis.........
SUPERPLASTICDEFORMATIONOFTiAlBASEDALLOY①ZhouKechao,HuangBaiyun,QuXuanhuiandChengXiaoqunNationalKeyLaboratoryForPowderMetalurg.........
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本文论述了超塑性压缩变形的粘塑性有限元计算方法,对硬铝压缩变形进行模拟计算,得到变形过程中的速度分布、应变率分布,应变分布......
块体纳米材料的制备技术及性能研究,是当前纳米材料领域内的一个热点.块体纳米材料具有奇异的结构和特殊性能,其在力学、电学、光......
研究了氢对Ti-24Al-14Nb-3V-0.5Mo合金微观组织和超塑变形的影响。结果表明:氢可增加合金中B2相的体积分数,促进变形过程中条状相晶......
为研究置氢Ti6A14V合金的高温加工改性机理,从微观组织的角度对合金进行了对比分析.利用OM、SEM、XRD等研究了置氢对Ti6A14V合金变形......
采用大变形刚塑性有限元法模拟超塑性材料轴对称锥形模约束胀形过程,分析了应变速率敏感性(m值)和模具侧壁倾角(α值)对胀形件厚度分布的......
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基于有关Zn-4%Al,Zn-22%Al超塑性合金与A3钢的固态压焊实验结果,对钢与超塑性合金的压焊特点及焊接接头形成机理进行了分析,提出了接头形成过程的模型;并......
通过对超塑性材料变截面试件的拉伸实验研究,分析和讨论了切口效应(即应力集中效应)对试件的截面变化规律、稳定变形与非稳定变形、以......
对缎铝LD7 以变形温度、变形速率和对材料的预处理方式为三因素,按正交设计进行高温拉伸试验,寻找最佳的超塑性条件. 经过淬火+ 过时效+ 温......
The activated slip systems in the α-phase of the superplastically deformed Ti-6Al-4V alloywere analyzed by systematic o......
The activated slip systems in the α-phase of the superplastically deformed Ti-6Al-4V alloywere analyzed by systematic o......
FRACTAL DIMENSION OF SHAPE CHANGE OF CAVITIFS DURING SUPERPLASTIC DEFORMATION IN HIGH STRENGTH Al AL
The fractal dimension changes of cavities have been determined during superplasticdeformation of the high strength alumi......
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通过利用真空扩散焊设备 ,成功地进行了钢与不锈钢相变超塑扩散连接 .试验结果表明 :在一定的试验范围内 ,扩散连接接头的拉伸强度......
Metal forming plays an important role in manufacturing industry and is widely applied in industries.The tradi- tional fi......
本文用电镜等对室温下超塑性变形中的Zn-22%Al共折合金的组织变化进行了观察,发现在该合金中a相(富Al相)+β相(富Zn相)两相组织中,在三叉晶界存在亚微观......
运用BP神经网络方法建立了铅黄铜超塑性状态下伸长率与变形参数之间的预测模型,采用标准前馈式神经网络原理建立了铅黄铜超塑性拉......
The method controlling grain shape in TMT processing and the effect of grain shape on char-acteristic parameters in supe......
A proposal for two types of press close to die,including blank coming in die and Blank cov-ering die,and four criteria f......
1.IntroductionSuperplasticity is not merely a specialphenomenon for certain specific alley,but isone of the intrinsic pr......
The research on numerical simulation for combinative process of SPF/DB is carried out in this paper. The contacting prob......
Based on quantitative microscopic examinations of welds and welding rate for different steels (40Cr and T10A) joint, whi......
MODELINGOFSUPERPLASTICFORMINGPROCESSFORALUMINUMALLOYSWITHSTRAINHARDENINGEFFECTY.N.KwonandY.-W.Chang(CenterforAdvancedAerospac.........
A synthesis method for the production of porous bulk metallic glass (BMG) was introduced. This method utilizes the su- p......
通过对不同工艺参数的超塑固态焊接结合层金相组织的分析,阐明了相变在焊接过程中的重要作用。由于相变时伴随着大量的晶界移运动,造......