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author:

傅高升 (傅高升.) [1] | 陈文哲 (陈文哲.) [2] | 钱匡武 (钱匡武.) [3]

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PKU CSCD

Abstract:

用热模拟试验方法对压力罐用铝材(简称“铝原块”)进行热压缩变形,探讨了熔体处理和变形条件对该材料高温流变应力行为的影响。结果表明:经不同熔体处理的铝原块均存在稳态流变特征;应变速率达10.00s-1时,流变曲线上均出现峰值应力,即该材料出现了动态再结晶;稳态变形阶段的流变应力与应变速率或变形温度分别满足双曲正弦函数关系和Arrhenius关系;与未处理的、常规处理的铝原块相比,经高效熔体处理的铝原块的真应力值及进入稳态阶段所对应的真应变值均较小,热变形激活能也有较明显的降低;此外还求出经高效熔体处理的铝原块的高温流变应力方程。

Keyword:

流变应力行为 熔体处理 罐用铝材 高温塑性变形

Community:

  • [ 1 ] 福州大学

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Source :

特种铸造及有色合金

Year: 2005

Issue: 09

Page: 513-516,509

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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