It demonstrated that the experiment of hardness is likely to upset in the experiment of compression. Hardness tester indenter make matrix metal plastic deformation and viscous flow happen.
结果表明，硬度实验类似于压缩实验中的镦粗，硬度计压头可使金属基体发生塑性变形及粘性流动。
In a hot-working process, the metal is brought to the viscous or plastic state by subjecting it to elevated temperature, and by the use of pressure it flows without fracture.
在热加工过程中，将金属升温，使其处于粘性即可塑状态，再加压使其流动而不折断。
Coefficient parameters of viscous damper were analyzed, the rational parameters were proposed, and the elasticity-plastic anti-seismic time-history analysis and random wind vibration were performed.
对黏滞阻尼器阻尼系数进行了参数分析，得到黏滞阻尼器比较合理的阻尼系数，然而进行了弹塑性抗震时程分析和随机风振分析。
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