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■■■■■■■■■■■■■■■■■■■ 川崎製鉄技報 KAWASAKI STEEL GIHO Vol.2 (1970) No.2 ■■■■■■■■■■■■■■■■■■■ |
| RIVER TENの耐候性試験（第１報） Atmospheric Corrosion Resistance of RIVER TEN Steels (1st Report) 久野 忠一(Tadakazu Kyuno) 中井 揚一(Yoichi Nakai) 今津 司(Tsukasa Imazu) 嶋中 浩(Hiroshi Shimanaka) |
| 要旨 ： 耐候性鋼RIVER TENを中心にした耐候性試験を工業地帯，田園地帯および海岸地帯において実施し，１年および２年後の結果を得た。裸鋼材，スクラッチ入り塗装鋼材ならびに溶接鋼材のいずれにおいてもRIVER TENの耐候性が優れていることが認められた。酸化促進皮膜法ウエザーコートはまだその効果が現われなかったが，プレパレンＳ処理法の効果は工業地帯および田園地帯で顕著であった。また鋼材の耐候性に対する添加元素，暴露開始時期ならびに暴露方向の影響を調べた。同時に偏光顕微鏡，Ｘ線回折，赤外吸収スペクトル，Ｘ線マイクロアナライザーなどによりさびを調べ，耐候性鋼のち密なさびの形成機構を考えた。 |
| Synopsis : To evaluate the weather resistant properties of RIVER TEN steels, tests were conducted by exposing the RIVER TEN steels to the atmosphere in the industrial, rural and seaside zones respectively, and the results for 1-year and 2-year exposures were obtained. The tests proved the excellent resistance of RIVER TEN steels against atmospheric corrosion whether they were bare steels, painted and scratched steels, or welded steels, irrespective of the places of their exposure. The effect of the oxide film stabilizing treatment commonly known by the name of "Weather Coat" did not come out clearly as far as the 1-year exposure test was concerned, but the "Prepalen" treatment applied to the steels in addition to "Weather Cost" proved of remarkable benefit in the industrial and rural zones. Researches were also made on how the atmospheric corrosion resistance of steels was affected according to the change in the alloying elements, the season of start of exposure, and the exposure direction. Besides, rusts were examined by means of polarized microscope, X-ray diffraction infra-red spectroscopy and X-ray microanalyzer, and the mechanism of formation of tight rust layers of RIVER TEN steels was discussed. |
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