The Dynamic Recrystallization Model of As-cast Lead Brass in Quasi-superplasticity Deformation

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The Dynamic Recrystallization Model of As-cast Lead Brass in Quasi-superplasticity Deformation
Issue 2, Pages: 89-92(2008)
Published： 2008 ，
DOI：

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[1]陈拂晓,李贺军,郭俊卿,肖凯.铸态铅黄铜准超塑性变形的动态再结晶模型[J].特种铸造及有色合金,2008(02):89-92+77.

Chen Fuxiao1, Li Hejun1, Guo Junqing1, et al. The Dynamic Recrystallization Model of As-cast Lead Brass in Quasi-superplasticity Deformation. [J]. Special Casting & Nonferrous Alloys (2):89-92(2008)
[1]陈拂晓,李贺军,郭俊卿,肖凯.铸态铅黄铜准超塑性变形的动态再结晶模型[J].特种铸造及有色合金,2008(02):89-92+77. DOI：

Chen Fuxiao1, Li Hejun1, Guo Junqing1, et al. The Dynamic Recrystallization Model of As-cast Lead Brass in Quasi-superplasticity Deformation. [J]. Special Casting & Nonferrous Alloys (2):89-92(2008) DOI：

采用Gleeble-1500D热力模拟试验机对铸造铅黄铜进行了压缩试验

试验条件中应变速率为0.0002～0.005s-1

变形温度为540～660℃

真应变为0.1～1.2

初始晶粒尺寸为38μm。在Sellars基本模型的基础上

通过对试验数据进行回归

建立了铸态铅黄铜动态再结晶模型

并用Deform-3D软件模拟了铜合金轴承保持架准超塑性成形过程中的动态再结晶

模拟结果与试验所测的数据吻合

表明所建立的铸态铅黄铜动态再结晶模型具有实用性。

The compression test of as-cast lead brass was conducted by thermal/mechanical simulating testing machine

Gleeble-1500D

with the strain rate of 0.000 2

.00 5 s-1 at 540

60 ℃ and the initial grain size of 38 μm and true strain at 0.1

.2.Based on the Sellars model

the model of dynamic recystallization（DRX） has been established by experimental data regression

and then the DRX in the solid cages during quasi-superplastic extruding process has been simulated by Deform-3D software

which is well in agreement with the practical ones

showing the availability of the established model.

铸态铅黄铜动态再结晶动态再结晶模型准超塑性

As-cast Lead BrassDynamic RecrystallizationDynamic Recrystallization ModelQuasi-superplasticity

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