| A DEVELOPMENT STUDY OF CAST COPPER ALLOYWITH HIGH STRENGTH AND HEAT－RESISTANCE |
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| 作者姓名： | WANG Zheng REN Chenxing and WANG Suying |
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| 作者单位： | Department of Materials Science，Zhengzhou Institute of Technology，Zhengzhou 450002，China |
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| 摘 要： | ＡＤＥＶＥＬＯＰＭＥＮＴＳＴＵＤＹＯＦＣＡＳＴＣＯＰＰＥＲＡＬＬＯＹＷＩＴＨＨＩＧＨＳＴＲＥＮＧＴＨＡＮＤＨＥＡＴ－ＲＥＳＩＳＴＡＮＣＥＷＡＮＧＺｈｅｎｇ；ＲＥＮＣｈｅｎｘｉｎｇａｎｄＷＡＮＧＳｕｙｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳ...
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| 收稿时间： | 1996-06-25 |
| 修稿时间： | 1996-06-25 |
A DEVELOPMENT STUDY OF CAST COPPER ALLOY WITH HIGH STRENGTH AND HEAT-RESISTANCE |
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| WANG Zheng, REN Chenxing and WANG Suying.A DEVELOPMENT STUDY OF CAST COPPER ALLOY WITH HIGH STRENGTH AND HEAT-RESISTANCE[J].Acta Metallurgica Sinica(English Letters),1996,9(3):217-222. |
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| Abstract: | By means of Precipitation hardening, a cast copper alloy with high strength and heatresistance named Cu-6Ti-Cr-Al has been developed. This alloy has good castability. After water quenching at 860℃ for 1 h and aging at 450℃ for 4 h, the tensile strength, σ_b, is greater than 890MPa and the compressive strength, σ_(bc), reaches 1300MPa, while the ratio of compression, ε_c, is maintained at 20%. When the environmental temperature is raised to 450℃, the mechanical properties do not show any appreciable loss. These copper alloy castings have been used on the roll sleeves of rubber formers and the journal bearings of sheet mills. The results have shown that the service life of these parts is much longer than that of aluminium bronze and 904alloy castings. In the present work, the microstructure, mechanical properties and strengthening mechanism were investigated. |
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| Keywords: | cast copper alloy mechanical properties microstructure precipitation hardening |
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