| Cu-Ni-Zn-Mn弹性合金的疲劳与断口分析 |
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| 引用本文： | 曹昱,刘锦文. Cu-Ni-Zn-Mn弹性合金的疲劳与断口分析[J]. 湖南有色金属, 1999, 0(5) |
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| 作者姓名： | 曹昱 刘锦文 |
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| 作者单位： | 中南工业大学!长沙，410083，中南工业大学!长沙，410083 |
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| 摘 要： | 研究了微量元素对 Ｃｕ － １５ Ｎｉ － １３ Ｍｎ － ２８ Ｚｎ 弹性合金疲劳性能的影响。结果表明： 添加微量元素①０ ．１ Ｔｉ＋ ０ ．１ Ｚｒ ＋ ０ ．１８７ Ａｌ ＋ ０ ．０１３ Ｃｅ ＋ ０ ．２４ Ｆｅ ＋ ０ ．１ Ｂ； ②０ ．０４ Ｃｅ ＋ ０ ．００３ Ｂ；③０ ．５ Ｔｉ；④０ ．５ Ｚｒ（ ｗ／ ％ ） 可提高合金的低周疲劳寿命。以②形式添加，效果较显著。断口分析表明，合金低周疲劳断口的主要特征是平行的条纹及韧窝。
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| 关 键 词： | Cu基弹性合金 疲劳 断口 |
Fatigue and Fracture Characteristics of Cu-Ni-Zn-Mn Spring Alloys |
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| Cao Yu Liu Jinwen. Fatigue and Fracture Characteristics of Cu-Ni-Zn-Mn Spring Alloys[J]. Hunan Nonferrous Metals, 1999, 0(5) |
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| Authors: | Cao Yu Liu Jinwen |
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| Abstract: | Effects of trace elements on the low-cycle fatigue properities of Cu-15Ni-13Mn-28Zn elastic alloy have been investigated. The fatigue fracture and fatigue crack were observed using SEM. The results showed that adding (1)0.187Al+0.013Ce+0.24Fe+0.1B+0.1Ti+0.1Zr (2)0.04Ce+0.003B (3)0.5Ti (4)0.5Zr improved the low-cycle fatigue life. And adding(2) is most effective. The chief character of fracture is fatigue striation and dimple. |
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| Keywords: | Copper base elastic alloy Fatigue Fracture |
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