外力作用对尘化腐蚀过程中碳扩散的影响

中国腐蚀与防护学报

2011, Vol. 31

Issue (5): 395-398

研究报告

本期目录 | 过刊浏览

外力作用对尘化腐蚀过程中碳扩散的影响

杨小斌^1,2,涂善东¹

1. 华东理工大学机械与动力工程学院上海 200237
2. 常州工学院机电工程学院常州 213002

INFLUENCE OF EXTERNAL FORCE ON CARBON DIFFUSION DURING METAL DUSTING CORROSION

YANG Xiaobin^1,2, TU Shandong¹

1. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237
2. School of Mechanical & Electrical Engineering, Changzhou Institute of Technology, Changzhou 213002

全文: PDF(471 KB)

摘要: 通过讨论当前常用的力学－化学耦合模型，用力学－化学耦合的激活体积模型研究外部载荷产生的应力对尘化腐蚀中碳扩散的影响。结果表明，拉应力促使碳元素的扩散，而压应力抑制其扩散。

关键词 ：激活体积, 尘化腐蚀, 外力作用, 碳扩散

Abstract：Metal dusting corrosion is a disintegration of metallic materials, which is dependent on carbon activity and pressure of atmosphere, temperature of circumstance, alloying component and so on. Diffusion of carbon into metal such as Fe, Ni and Co and their alloys plays a key role, meanwhile, external loading is an important factor. A brief discussion about coupling models of mechanics-chemical is made in the present work. Activity volume model is used to investigate the influence of external force on carbon diffusion. The results show that tensile stress promotes diffusion of carbon into metal, while compressive stress restrains it into metal.

Key words： activity volume dusting corrosion external force carbon diffusion

收稿日期: 2010-07-16

ZTFLH:

TG178.82

基金资助:

国家自然科学基金项目(50835003,10772067)资助

通讯作者: 杨小斌 E-mail: yangxb@lzu.edu.cn

作者简介: 杨小斌，男，1972年生，博士，副教授，研究方向为力学－化学耦合作用

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引用本文:

杨小斌,涂善东. 外力作用对尘化腐蚀过程中碳扩散的影响[J]. 中国腐蚀与防护学报, 2011, 31(5): 395-398.
YANG Xiao-Bin. INFLUENCE OF EXTERNAL FORCE ON CARBON DIFFUSION DURING METAL DUSTING CORROSION. J Chin Soc Corr Pro, 2011, 31(5): 395-398.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2011/V31/I5/395

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