Effects of B on Microstructure and Properties of White Copper Alloys

Dong Xugang1; Pan Liangxing2; Jin Qinglin1; Wang Chunjian1; Jiang Yehua1

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Effects of B on Microstructure and Properties of White Copper Alloys
Vol. 30, Issue 4, Pages: 385-388(2010)
Published： 2010 ，
DOI：

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[1]董旭刚,潘亮星,金青林,王春建,蒋业华.B对白铜合金铸造组织和性能的影响[J].特种铸造及有色合金,2010,30(04):385-388+293.

Dong Xugang1, Pan Liangxing2, Jin Qinglin1, et al. Effects of B on Microstructure and Properties of White Copper Alloys. [J]. Special Casting & Nonferrous Alloys 30(4):385-388(2010)
[1]董旭刚,潘亮星,金青林,王春建,蒋业华.B对白铜合金铸造组织和性能的影响[J].特种铸造及有色合金,2010,30(04):385-388+293. DOI：

Dong Xugang1, Pan Liangxing2, Jin Qinglin1, et al. Effects of B on Microstructure and Properties of White Copper Alloys. [J]. Special Casting & Nonferrous Alloys 30(4):385-388(2010) DOI：

摘要

研究了B变质处理对Cu-Ni白铜合金铸态组织、力学性能和其在模拟海水环境中的耐腐蚀性能的影响。结果表明

B元素加入到Cu-Ni白铜合金中

能够显著地细化合金的铸造组织

有效地改善合金的塑性、强度和硬度

并能使腐蚀产物中出现有利于提高氧化膜致密度的化合物

从而阻止了腐蚀的进一步进行

提高了白铜合金的耐腐蚀性能。

Abstract

Effects of B modification treatment on as-cast microstructure

mechanical properties and corrosion resistance of Cu-Ni white copper alloy in simulated sea water were investigated. The results reveal that B element can greatly improve the plasticity

strength and hardness of the white copper alloy as a result of remarkably refining as-cast microstructure. Meanwhile

corrosion resistance of the Cu-Ni while copper alloy is improved also with B addition

which is attributed to the generation of compound beneficial for improving compactness of oxide film in corrosion product to further restrain the corrosion behavior.