Gleeble3500热机模拟试验仪的介绍剖析课件.ppt

1、1.什么是Gleeble物理模拟2.Gleeble-3500系统简介 3.Gleeble物理模拟技术在材料领域的运用概述4.Gleeble物理模拟技术在钢铁材料领域的运用5.Gleeble物理模拟技术运用的新进展1.借助于模拟装置；2.利用缩小的试样；3.再现受热/受力过程；4.揭示组织与性能的变化规律；5.优化工艺、保证质量。Hi-speed resistant heatingHi-speed compression and tensionAccurate,Dynamic,Flexile,VersatileProvided or self-designed Grips and diesVac

2、uum TankQuenching 材料基础研究材料性能实验 材料加工过程模拟 固态相变/临界点/等温转变/连续冷却转变 熔化/凝固 加工硬化/软化 形变组织的动静态回复/再结晶 材料热塑性/超塑性 组织细化/超细晶和纳米晶块材 裂纹敏感性 热膨胀与热收缩行为沉淀相粒子行为/析出/粗化/回溶热拉伸性能/高温强度/热塑性/超塑性单轴热压缩性能/流变应力曲线 动静态 CCT/CHT/TTT/PPT/SHCCT 焊接性/裂纹敏感性/淬硬脆断倾向 热机械疲劳平面应变热压缩性能 高温蠕变/应力松驰 平面应变断裂韧性/CTOD 半固态加工 TMCP(轧制、锻造、拉拔)焊接:电弧焊和高能束焊焊接热循环过程、

3、热裂纹敏感性评价、冷裂纹敏感性评价、淬硬脆断倾向评价、焊接工工优化。扩散连接铸造/连铸热处理过程(淬火、正火、退火、回火、临界热处理、循环热处理.)板带退火粉末冶金/固相烧结、液相烧结、热压成型、高压成型.蔓延燃烧合成.连铸过程模拟 TMCP过程模拟热成形过程焊接过程模拟CCT/SHCCT图建立 薄板坯连铸过程模拟 铸坯拉矫过程模拟M eltingM elting(a)in-situ m elted,solidified and tested(b)in-situ m elted,and reheated(c)reheatedTemperature T im e 铸坯热塑性试验 连铸坯拉矫热塑性

4、曲线3006009001200150045607590IIIIIIDuctility(%)Temperature(C)连铸工艺图 TMCP工艺采用 ISO-T TM 压头的单轴压缩变形Graphite FoilISO-T TM AnvilsAnvil BaseAnvil BaseSpecimenTempFree SpanSchematic Setup of Isothermal Flow Stress TestingUsing the ISO-TTM Anvils 单轴压缩均匀变形的实现单轴压缩均匀变形组织10 mm dia.specimen after 60%reduction at 100

5、0oC(x100)TMCP加速冷却的实现 TMCP后的力学性能测试 热塑性试验PDT5%On-coolingOn-heatingDuctility in R.A.Tem perature DRTNDT NSTTL(a)On-heating(b)On-coolingTemperature Tim e 温度梯度对断面收缩率的影响10 mm dia.tensile bar pulled at 50mm/s at 1000C 应变诱导裂纹张开（SICOTM）试验 SICOTM 试验方法 SICOTM与 热塑性试验方法的比较900100011001200130070809010017-4PH duple

6、x stainless steelCritical Strain,ln(d0/d)R.A.TestReduction of Area(%)X axis title0.40.50.60.7 SICO Test电弧焊焊接热循环过程模拟激光焊焊接热循环过程模拟热裂纹敏感性评价冷裂纹敏感性评价脆断倾向评价焊接工艺优化焊接热影响区的局部脆性区和热循环过程模拟Rykalin-2D生成的系列峰值温度曲线ISO-TTM等温淬火装置和模拟的热循环曲线Water inT.C.Water outWater inWater out热裂纹敏感性评价冷裂纹敏感性评价最高硬度法铜夹具硬度测定线 热电偶图2.模拟HAZ硬度测

7、试线及温度分布示意图图2.-6-4-20246400600800100012001400Y Axis TitleX Axis Title B温度分布脆断倾向评价和焊接工艺优化热膨胀试验装置CCT测试奥氏体化条件0100200300400500600700800020040060080010000.2/s0.5/s1.5/s3.0/s5/s8/s10/s15/s20/s25/s30/s50/s950OCX300s T/OCt/sSHCCT测试奥氏体化条件02550751001251501752002252502753000200400600800100012001400 1350OCX1sT/O

8、Ct/s微分法确定转变点-CCT软件包CCT/SHCCT图的绘制-CCT软件包 液压伺服系统的性能曲线液压伺服系统的性能曲线HYDRAULIC MAXIMUM FORCE vs.STROKE VELOCITY0.00.20.40.60.81.01.21.41.61.82.00102030405060708090100RECOMMENDED OPERATING REGIONForce(kN)Stroke Velocity(m/s)Since 2002metals and alloys structural ceramics super hard materials glasses and pol

9、ymers composites and othersStrong links to industries by carrying out:Process simulation and quality analysesTraining and technical exchangeR.&D.on new productsInvolved in basic materials studies by dealing with:Controlled Melting/solidification Transformation/PrecipitationRecrystallization/Recovery Work Hardening/Softening Plasticity/Super-plasticityUltra-Fine Grain Materials Bulk Nanometer MaterialsHi-speed R.heatingHi-speed movingGrips and diesVacuum TankQuenching Accurate,Dynamic,Flexile,Versatile.