1) 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。
2) 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。
3) 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。
4) n value
硬化指数n
1.
Impact of n value upon the formability of cold-rolled sheets with two different materials;
硬化指数n对两种不同原料冷轧板成形性能的影响
5) 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。
6) atherogenic index
动脉硬化指数
1.
Measurement and clinical study of atherogenic index;
动脉硬化指数的测量与临床研究
2.
05) and the lowest atherogenic index among three groups.
比较了分别饲喂酪蛋白、大豆分离蛋白、黄米醇溶蛋白小鼠的血清总胆固醇、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇,甘油三酯浓度和动脉硬化指数,旨在评价黄米醇溶蛋白对小鼠胆固醇代谢的特定作用。
补充资料：硬化指数
硬化指数
hardening index
y inghua zhishu硬化指数(hardening index)指金属薄板成形时真应力S一真应变。关系式S~K广中的幕指效城式中K为强度系数)。亦即双对数坐标系场~坛。中，真应力一真应变关系式195~坛K十滋g。直线的抖率。是无量纲值，又称加工硬化指数。(见真应力一宾应变曲线)从数值上看，硬化指数，值等于(或近似等于)单向拉伸时材料最大均匀伸长应变的大小，即所渭细颈点应变。应变分布不均是板材成形中的一个重要特点，，值的大小实际上反映了板材的应变均化能力，主要说明: (1)成形件的应变峰值不同。n值小的材料产生的应变峰值高，，值大的材料产生的应变峰值低; (z)成形件上的应变分布不同。n值小的材料应变分布不均匀，n值大的材料应变分布均匀。 硬化指数n值对板材成形极限曲线具有明显的影响，n值大材料的成形极限曲线高，n值小材料的成形极限曲线低。板材的拉胀性能在很大程度上取决于材料的n值，。值高时，拉胀性能也好。因此，硬化指数，值是评价板材成形性能的重要指标之一。 (康永林)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条