Study on the Microstructure and Corrosion Behaviours of Hastelloy C-4 Type Cast Ni-Base Alloy

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Study on the Microstructure and Corrosion Behaviours of Hastelloy C-4 Type Cast Ni-Base Alloy
Issue 1, (1996)
Published： 1996 ，
DOI：

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[1]秦紫瑞,吴晓光.HastelloyC－4型铸造镍基合金的组织及其腐蚀行为研究（上）[J].特种铸造及有色合金,1996(01):4-7.

Study on the Microstructure and Corrosion Behaviours of Hastelloy C-4 Type Cast Ni-Base Alloy. [J]. Special Casting & Nonferrous Alloys (1).(1996)
[1]秦紫瑞,吴晓光.HastelloyC－4型铸造镍基合金的组织及其腐蚀行为研究（上）[J].特种铸造及有色合金,1996(01):4-7. DOI：

Study on the Microstructure and Corrosion Behaviours of Hastelloy C-4 Type Cast Ni-Base Alloy. [J]. Special Casting & Nonferrous Alloys (1).(1996) DOI：

摘要

采用金相显微镜、Ｘ射线衍射和电于探针等显微分析手段和多种腐蚀试验方法，研究了ＨａｓｔｅｌｌｏｙＣ－４型铸造镍基合金的组织及其均匀腐蚀、晶间腐蚀与点蚀行为。试验结果表明，低的含碳量与含铁量和适量的镍、铬、钼的复合作用，使该合金对混酸介质具有良好的耐蚀性和较高的抗晶间腐蚀与抗点蚀性能。

Abstract

In this paper

the analysis metallcscope

X-ray diffraction and other electron micro-probe and some corrosion tests were used to investigate the microstructure

and behaviour of uniform

inter granular and pitting corrosion of Hastelloy C-4 cast Ni-base alloy. The results show that a low C and Fe content and a complex reaction among proper Ni

Mo make the alloy possess good resistance to mix acid and intergranular and pitting corrosion.