2205双相不锈钢沉积氯化钠之高温腐蚀

CORC > 厦门大学 > 2005年第11卷

	2205双相不锈钢沉积氯化钠之高温腐蚀; The High Temperature Corrosion of 2205 Duplex Stainless Steel with NaCl Deposit
	彭富福 ; 王朝正 ; 林裕章 ; PENG Fu-fu ; WANG Chaur-jeng ; LIN Yu-chang
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract8875.shtml
	2005-11-28
关键词	双相不锈钢 2205 高温腐蚀 Duplex stainless steel 2205DSS High-temperature corrosion
英文摘要	本文研究表面沉积2 mg/cm2氯化钠的2205双相不锈钢(2205 DSS)在500 vppm NaC(l g)流动气氛加热炉内550~850℃下之高温腐蚀.结果显示,2205 DSS之高温腐蚀动力学遵守)物线定律,腐蚀反应速率随温度的上升而加速.高温腐蚀后生成的腐蚀皮膜结构由外而内依次为Fe2O3、Fe3O4、Cr2O3及FeCr2O4,不同温度下腐蚀生成的皮膜结构并无明显相异,唯850℃之试片于氧化皮膜脱落后,从其表层较容易检测到S iO2及N iO.在双相结构腐蚀顺序实验中,对表面沉积2 mg/cm2氯化钠的试片,其腐蚀顺序与α、γ相无关,为全面性的腐蚀.但于500 vppm NaC l(g)的流动气氛下,虽无法分辨α、γ相的腐蚀顺序,但可发现γ相较α相有较快速腐蚀的现象.; The objective of this study was to figure out the hot corrosion behavior of 2205 duplex stainless steel(2205 DSS) within the temperature ranges from 550 to 850℃ in the static air condition with 2 mg/cm~(2)NaCl deposit,and in the air atmosphere condition with a constant flow rate of 500 vppm NaCl_((g)),respectively.Experimental results show that the hot corrosion kinetics met the parabolic rate law and the corrosion rate increased constantly with increasing temperature.The scales formed included Fe_(2)O_(3)/Fe_(3)O_(4)/Cr_(2)O_(3) and FeCr_(2)O_(4)from outer layer to inner layer.The sequence of formation is independent of the environment temperature,but the SiO_2 and NiO can be found in the substrate of 850℃specimen.The corrosion sequence in two phase structure of 2205 DSS was not influenced by α and γ phases in the 2 mg/cm~(2)NaCl deposit due to complete corrsion and in the air atmospheres condition with a constant flow rate of 500 vppm NaCl_((g)).In the case of constant flow rate of 500 vppm NaCl_((g)),the corrosion rate in the γ phase was greater than that in the α phase,although the corrosion sequence was not known.; 作者联系地址：台湾科技大学机械工程研究所,台湾科技大学机械工程研究所,台湾科技大学机械工程研究所台北台湾,台北台湾,台北台湾; Author's Address: Department of Mechanical Engineering,National Taiwan University ofScience and Technology,Taipei,Taiwen,China
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/57864]
专题	2005年第11卷
推荐引用方式 GB/T 7714	彭富福,王朝正,林裕章,等. 2205双相不锈钢沉积氯化钠之高温腐蚀, The High Temperature Corrosion of 2205 Duplex Stainless Steel with NaCl Deposit[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract8875.shtml,2005.
APA	彭富福,王朝正,林裕章,PENG Fu-fu,WANG Chaur-jeng,&LIN Yu-chang.(2005).2205双相不锈钢沉积氯化钠之高温腐蚀.http://electrochem.xmu.edu.cn/CN/abstract/abstract8875.shtml.
MLA	彭富福,et al."2205双相不锈钢沉积氯化钠之高温腐蚀".http://electrochem.xmu.edu.cn/CN/abstract/abstract8875.shtml (2005).