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AISI304L Stainless 鋼의 應力腐蝕龜裂에 미치는 冷間加工의 影響
趙德鎬 大田開放大學 1986 論文集 Vol.5 No.-
The effect of cold working on the stress corrosion cracking (SCC) of AISI 304L stainless steel plate was studied. The SCC tests were carried out in boiling 42% MgCl_2 solution and the results were summarized as follows. 1. The effect of cold working on SCC susceptibility was remarkable, and the resistance to SCC showed maximum at 30% of cold work after solution treatment. 2. The fracture mode changed intergranular → transgranular → intergranular as the amount of cold work increased. 3. Fracture surface was observed to consist of two regions; a stress corrosion cracked region on the outside, and a mechanically fractured region in the center. 4. Virtually all specimens failed in the vapor phase approximately 0.5 - 1.0 cm above the liquid - vapor interface.