Keywords:properties of Q235 steel;heat treatment;water quenching; strength and toughness 第 1 页 齐鲁工业大学|机械与汽车工程学院 目录 1 引言3 2 实验方法4 2.1 实验试样的制备4 2.2 热处理工艺的制定4 2.2.1 普通淬火工艺4 2.2.2 水浴淬火工艺4 2.3 组织观察、性能测试5 3 实验结果与分析5 3.1 不...
在实际生产 中往往采用测试成 形力的方法确定成形温度,不利于工件的组织性能 表 2 Q23S钢拉伸试验各力学性能 的改善和尺寸精度的提高. Tab.2 MechanicalpropertiesofQ235steel 通过对 Q235钢温塑性成形时的组织状态 、成 in tensileexperiment 形压力和尺寸精度的综合分析来确定其温塑性成 形温度 ,对于模具设计和...
constitutiveofsteelmaterials andstrain analysis relationships amongstrees,temperature different under werebuilt.Thematerial of steelthathas stress—temperaturepaths propertiesQ235 experi— encedconstant—load andreturnedtoroom vianatural werealso heatingcooling temperature cooling studied.A wasmadebetweentheresults...
Q235 steel (Q235A Q235B Q235C Q235D) properties: material density: 7.85 g/cm3, composition, equivalent US ASTM, Australian AS/NZS 3678
建筑用Q235钢无屈服强度原因分析.pdf,第26卷增刊 冶金分析 vd,拍,SHppl 撕年如月 MetallurgicalAnalyis October.2006 文章编号:100r一7571(2006)增一0183—04 建筑用Q235钢无屈服强度原因分析 高志平,张贺宗,李海滨 (唐山钢铁股份有限公司技术中心,河北唐山063016)
Abstract:Q235lowcarbonsteelwastreatedbyplasmaelectrolyticborocarburizing(PEB/C)withthe methodofplasmaelectrolyticsaturation.Themorphology,structureandmicrohardnessofborocar— burizinglayeronQ235low—carbonsteelwereinvestigated.Theelectrochemicalcorrosionpropertiesof ...
Q235 steel properties 现极大值 ,此后伸 长率随铁 索体区变形温度的 升高而降低 ,但在不同应变速率条件下 ,伸长率 的降低程度 是不一样的.基本规律是 :应变速率 越大,伸长率在 峰值后的的降低幅度越大.而在 应 变速率为 5/S的情况下 ,伸长率随铁素体区变 ...
The effect of quenchpolishquench (QPQ) nitriding temperature and rare earth yttrium (Y) content on the microstructure and properties of Q235 steel was investigated. The nitriding layer is divided into an oxide layer (Li 2 Fe 3 O 4 and Fe 3 O 4 ), a compound layer (Fe 3 N), a ...
and widely used. They are the former BS 4360:1986 grades 40A and 43A respectively. These grades have no specified impact properties.The mechanical properties shall be same as those given in table 5 for grades S235JRG2,S275JR.Steel Type CHEMICAL COMPOSITION CRITERIA MECHANICAL PROPERTIES ...
关键词 : Gurson 模型 ; Johnson‐Cook 模型 ; LS‐OPT 软件 ; 材料失效中图分类号 : TP391.9 文献标识码 : A 文章编号 :1003‐5060(2014)06‐0641‐05Characterization of mechanical properties of aluminium alloy 6061T6and low carbon steel Q235 based on Gurson‐JC modelLU Shan‐bin , ZHOU Lu‐...