ZL108合金高温强度与化学成分的关系

王汝耀; 鲁薇华; 罗全顺

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ZL108合金高温强度与化学成分的关系
Effects of Cu,Mg,Mn,Fe Alloying Elements in ZL108 Alloy on the Strength at High Temperature
2004年第4期页码：60-62
纸质出版日期： 2004 ，
DOI：

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[1]王汝耀,,,,,,,,,鲁薇华,,,,,,,,,罗全顺.ZL108合金高温强度与化学成分的关系[J].特种铸造及有色合金,2004(04):60-62+80.

Wang Ruyao Lu Weihua. Effects of Cu,Mg,Mn,Fe Alloying Elements in ZL108 Alloy on the Strength at High Temperature[J]. Special Casting & Nonferrous Alloys, 2004,(4):60-62.
[1]王汝耀,,,,,,,,,鲁薇华,,,,,,,,,罗全顺.ZL108合金高温强度与化学成分的关系[J].特种铸造及有色合金,2004(04):60-62+80. DOI：

Wang Ruyao Lu Weihua. Effects of Cu,Mg,Mn,Fe Alloying Elements in ZL108 Alloy on the Strength at High Temperature[J]. Special Casting & Nonferrous Alloys, 2004,(4):60-62. DOI：

摘要

用正交试验法探讨了Cu

Fe诸元素对ZL10 8合金的热强作用。采用多元回归定量地建立了 4元素及其交互作用与合金 3 0 0℃短时抗拉强度之间的经验公式。该回归方程具有较高的置信度

根据化学成分计算出的合金高温抗拉强度与实测结果误差在 5 %以内。讨论了 4元素的热强机理。各元素通过所形成的复杂金属间化合物的热稳定性、形态以及数量实现对合金的热强作用。Mg和Fe显著提高合金的高温强度

但Mg量增至 0 .7%以上

其热强作用不再明显。Fe量高时

Mn出现热强作用。Mn量高时

Cu只具有微弱的热强作用。最后提出Cu

Fe的最佳范围可以保证合金高温抗拉强度超过国家标准（78.5MPa）。

Abstract

The effects of the alloying elements

such as Cu

in ZL108 alloy on tensile strength at high temperature were studied by orthogogal test.The quantitative empiric formular between the alloying elements and tensile strength of the alloy at 300 ℃ was established by multi element regression with four elements and their interaction.The effects of alloying elements on elevated strength at high teperature of the alloy were responsible for formed complicated intermetallic compound.Mg and Fe can improve greatly the tensile strength of the alloy at high temperature.The reaction of Cu and Mn with other elements revealed thermal strengtherning effects.