1) strain hardening exponents
形变硬化指数
1.
The strain hardening exponents of the martensite,bainite,ferrite,plus austenite fibrous multiphase structure obtained in structural steel and the relation between strain hardening exponents and microstructure were studied.
对结构钢中获得的纤维状马氏体＋贝氏体＋铁素体＋奥氏体多相复合组织的形变硬化指数及其与显微组织的关系进行了研究。
2) strain hardening index
应变硬化指数
1.
It was found that the stress-based FLSD differs from the conventional strain-based FLD,and the reasons for the disagreement between them were discussed,the influence of strain hardening index and wall thickness on FLSD was also analyzed.
发现并讨论了FLSD与传统成形极限图FLD之间存在的差别,分析了应变硬化指数n和壁厚t值对FLSD的影响。
2.
Based on the state equation that stress is a function of strain and strain-rate, the differential constitutive equation during superplastic tensile deformation is deduced, and then the mechanical meaning of the strain hardening index in the equation is interpreted.
从应力为应变和应变速率函数的状态方程出发,导出了超塑性拉伸变形的微分本构方程,从而解释了方程中应变硬化指数的力学涵义。
3.
The physical meaning and several determination methods of strain hardening index and thick anisotropy index r are introduced.
介绍了应变硬化指数ｎ值和厚向异性指ｒ值的物理意义和几种不同的测定方法，具有一定的实践指导意义。
3) Strain hardening exponent
应变硬化指数
1.
For the steel containing high content martensite,strain hardening exponent n and strain hardening rate significantly increase in the stage of uniform deformation with the increase of martensite.
利用扫描电子显微镜对不同马氏体含量的试样的断口和断口侧面分析,发现在高马氏体含量下,双相钢变形和断裂与马氏体含量和组织形态有关,且其均匀变形阶段的应变硬化指数n值及应变硬化速率也会随着马氏体含量的增加而显著升高。
2.
The results showed that the strain hardening exponent,determined by the Crussard-Jaoul analysis,was affected by dislocation density and twin volume fraction,especially,it was increased greatly with twin.
基于Crussard-Jaoul分析法所得的高锰钢应变硬化指数值的变化主要受位错密度和孪晶体积分数的影响,尤其随着形变孪晶量的增加,应变硬化指数获得迅速提高。
3.
With the indication ball indentation technique ( IBIT),the indentation hardness,young\'s modulus,yield strength,ultimate tensile strength,strain hardening exponent and surface residual stress of the tested joint were simultaneously measured.
焊接接头是一个组织与性能的不均匀体,为了对接头力学性能作出有效评价,采用示值球形压痕技术(IBIT),以步进电动机为动力,用载荷传感器、位移传感器连续获取载荷、位移数据;以触摸屏为操作界面,用PLC进行运动控制和数据处理,研制出压痕性能测试系统,获得被测接头的压痕硬度、弹性模量、屈服强度、抗拉强度、应变硬化指数及表面残余应力。
4) hardening exponent
硬化指数
1.
The hardening exponent,value of plastic strain ratio,yield strength,tensile strength,even percentage elongation and other mechanical performances have been studied.
对400MPa超级钢板材进行了拉伸试验、冷弯试验和金相组织检验,获得了超级钢板的硬化指数、塑性应变比、屈服强度、极限强度等力学性能,并分析了400MPa超级钢板的冲压成形性能,了解这些性能对超级钢冲压件在汽车行业里的应用与生产具有一定的指导作用。
2.
It is simple and effective to calculate the hardening exponent(n-value) for steel sheet using the testprogram composed with Testware-SX software module and data processing program composed with macro-instruction.
用Testware—SX软件模块编制试验程序,宏命令编制数据处理程序计算薄板硬化指数n值,该方法简单有效。
5) hardening index
硬化指数
1.
The mechanical performances such as hardening index,value of plastic strain ratio,yield stre.
研究了超级钢板的硬化指数、塑性应变比、屈服强度、极限强度、均匀延伸率等机械性能,并分析了超级钢板的冲压成形性能,超级刚具有较好的胀形性能、拉深性能、弯曲性能,抗起皱性能等冲压性能,可以广泛地应用于汽车冲压零件生产中。
2.
In this thesis, by using micro- and nano- indentation methods and uniaxial compression test, the plastic deformation behavior of several BMG systems was investigated, focusing on the physical nature of the pressure sensitivity index and the strain hardening index of the BMGs.
重点研究了非晶合金的压力敏感性(pressure sensitivity),探讨了其压力敏感因子和硬化指数的物理本质及其影响因素;分析了具有不同压力敏感因子的非晶合金的剪切带形貌与演变规律;研究了玻璃转变温度,结构弛豫对非晶变形的影响;初步研究了非晶的挤压变形行为。
6) strain-hardening exponent
硬化指数
1.
The nominal yield ratio(σ_s/σ_b),true stress yield ratio(S_s/S_b) and strain-hardening exponent(n) of five kinds of steel were derived from tensile experiments.
试验测算出X80、X65、X60、X46、Q235等五种材料的名义应力屈强比sσ/bσ和真实应力屈强比Ss/Sb及硬化指数n。
补充资料：迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
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参考词条