Technical Essentials of Pitting Corrosion Test of Ferric Chloride in ASTM G48-11
摘 要
三氯化铁点蚀试验主要用于评定耐蚀合金的耐点蚀性能,对ASTM G48-11中的三氯化铁点蚀试验进行了解析,从试验设备、试验溶液、试样制备和试验方法等方面介绍了三氯化铁点蚀试验的技术要点和实践经验。结果表明:进行耐蚀合金焊接接头三氯化铁点蚀试验时,在溶液配制、试样表面处理、试样放置时间节点等细节上会存在一定的误区,将影响试验结果的准确性;在日常检验工作中,应强化试验细节的合规性,不断提高试验结果的准确性,为企业生产提供可靠的试验数据。
Abstract
The pitting corrosion test of ferric chloride is mainly used to evaluate the pitting corrosion resistance of corrosion resistant alloys. The pitting corrosion test of ferric chloride in ASTM G48-11 was analyzed. The technical points and practical experiences of pitting corrosion test of ferric chloride were introduced from the aspects of test equipments, test solutions, sample preparation and test methods. The results show that there could be some errors in the details of solution preparation, sample surface treatment, sample placement time node and so on during the pitting corrosion test of ferric chloride for corrosion resistant alloy welded joints, and which would affect the accuracy of the test results. In daily inspection work, the regularity of test details should be strengthened, the accuracy of test results should be continuously improved, and reliable test data should be provided for enterprise production.
中图分类号 G307 DOI 10.11973/lhjy-wl201907006
所属栏目 试验技术与方法
基金项目
收稿日期 2018/5/28
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备注张三艳(1981-),女,高级工程师,主要从事金属材料焊接工艺评定理化检测工作,zhangsanyan@cooec.com.cn
引用该论文: ZHANG Sanyan,DAI Xucheng,LIU Hong,YANG Lianhui. Technical Essentials of Pitting Corrosion Test of Ferric Chloride in ASTM G48-11[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2019, 55(7): 455~457
张三艳,代绪成,刘宏,杨莲慧. ASTM G48-11中三氯化铁点蚀试验的技术要点[J]. 理化检验-物理分册, 2019, 55(7): 455~457
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