材料と環境 Vol. 59 (2010), No. 10
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キーワードランキング
21 Jan. (Last 30 Days)
材料と環境 Vol. 59 (2010), No. 10
超低加速・高分解能FE-SEMの腐食研究への応用 (2)
清水 健一
pp. 360-365
DOI:
10.3323/jcorr.59.360抄録
A brief review is given, with selected examples, of a novel use of advanced scanning electron microscopy for corrosion studies. Examples included are (a) water-drop corrosion of iron, (b) corrosion of copper in NaCl solution, and (c) deformation of matrix around the tip of cracks developed in high-temperature resistant steels. Through the use of test specimens with “well-defined” or “nearly perfectly-defined” surfaces, prepared by mechanical polishing followed by final treatment by rf-GD sputtering, subtle surface evolutions associated with the initial stages of corrosion of iron and copper have been revealed at the clarity never seen before. Specifically for water-drop corrosion of high purity iron, where MnO and MnS inclusions of dimensions of up to several microns are present, often forming complex inclusions, it has been demonstrated for the first time that nano-cavities, which are precursors for pitting, are always formed not by dissolution of MnS− inclusions, as previously suggested for pitting of stainless steels, but by the dissolution of MnO inclusions.
通信設備用つり線の三宅島での暴露試験による腐食事例
中村 真理子, 齋藤 博之, 東 康弘, 澤田 孝, 半田 隆夫, 工藤 保, 渡辺 正満, 松本 守彦
pp. 377-378
DOI:
10.3323/jcorr.59.377Formation of Model Scratch on Pre-painted Coated Steel by Laser Machining and Its Wet/Dry Corrosion Behavior
Masatoshi Sakairi, Miki Uchida, Tatsuya Kikuchi
pp. 379-381
DOI:
10.3323/jcorr.59.379付着塩分量と気象要素に着目したACM型腐食センサーの出力電流の応答特性に関する観測的検討
木村 泰, 広瀬 望, 武邊 勝道, 大屋 誠, 麻生 稔彦
pp. 387-389
DOI:
10.3323/jcorr.59.387電子機器の設置環境の腐食性評価方法
南谷 林太郎
pp. 393-398
DOI:
10.3323/jcorr.59.393抄録
A new method to evaluate the corrosivity of the atmospheric environment with environmental data, temperature, relative humidity and corrosion weight, in published papers was developed in order to improve the data base related to the indoor corrosion of electronic equipment. The validity of this method was examined by the environmental data at five sites. Furthermore, this method can be used to examine the effect of air conditions and thus control the damage caused by corrosion.
論文アクセスランキング
21 Jan. (Last 30 Days)
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Wettability of CaS against molten iron at 1873 K
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Terminal Settling Velocity of Particle in Suspension
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