The coarse crystalline LC4 alloy exhibit some superplasticity under lower temperature and higher strain rate, because it can create effective recrystallization refinement.
粗晶lc 4合金在较低温度和较高应变速率条件下,因能产生有效的再结晶细化,而呈现出一定的超塑性。
The effect of uneven distribution of strain during compression on dynamic recrystallization and grain size of austenite was analyzed.
分析了热模拟变形过程中的非均匀应变对奥氏体动态再结晶及晶粒尺寸的影响。
The dynamic recrystallization of ferrite will occur at high strain.
应变量较高时,将会发生铁素体的动态回复和再结晶。
Lowering temperature window of rolling and large strain accumulation is basic condition for exceeding of critical strain for dynamic recrystallization to refine austenite grain size.
为了获得足够的应变积累来克服动态再结晶的临界应变,低温大变形量的变形是基本条件。
They also show that a finer grain size can be obtained by dynamic recrystallization during superplastic deformation at a high strain rate, but the total elongation to failure is limited in about 135%.
合金在高应变速率的变形中通过动态再结晶可获得更细的晶粒尺寸,其断裂时总延伸率在135%左右。
The dynamic recrystallization behavior is inhibited with the increase of strain rate, but the grain size decreases.
动态再结晶行为随着应变速率的增大而逐渐被抑制,但晶粒尺寸反而减小;
The standard deviation of dynamic recrystallization grain size decreases with the increase of strain rate.
动态再结晶晶粒尺寸标准偏差随应变速率的增加而减小。
It is evident that the effects of strain-induced recrystallization on grain refining and on high-angle grain boundary fraction increasing affect greatly the superplastic properties of the alloy.
研究指出,应变诱发再结晶对细化晶粒和提高大角度晶界分数的作用明显地影响合金的超塑性能。
When the temperature is constant, the dynamic recrystallization was increased as the strain rate decreased.
当温度一定时,随着应变速率的降低材料越容易发生动态再结晶。
During deformation, because of dynamic recovery and recrystallization, a turning point appears on the curve of true stress with temperature and strain rate.
这个折点的出现可能与变形过程中的动态回复与再结晶有关。
The dynamic recrystallization mechanism during hot compress was examined by the true stress-strain curves and TEM.
采用真应力一真应变曲线和TEM研究其高温压缩变形中的流变应力行为和它的动态再结晶过程。
The dynamic recrystallization mechanism during hot compress was examined by the true stress-strain curves and TEM.
采用真应力一真应变曲线和TEM研究其高温压缩变形中的流变应力行为和它的动态再结晶过程。
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