13 Cr ステンレス鋼におよぼす P の影響について : 13 Cr ステンレス鋼の研究 I

概要

論文の詳細を見る
To investigate the influence of P on properties of 13 Cr stainless steels, which were widely used for kitchen utensils, medical instruments, high-temperature duties and other uses. The authors measured the transformation temperatures, the hardness change, the mechanical properties at room and elevated temperatures and studied the corrosion resistance to 40% boiling nitric acid and to 5% acetic acid at room temperature and boiling. The results obtained were as follows : (1) The Ac transformation temperatures were raised but the Ar″ beginning points were lowered by P addition. (2) The as-annealed hardness of these steels and of cold-drawn materials were increased with P contents. The as quenchd hardness was subjected to the influence of quenching temperatures but was not affected by P content. The resistance to softening by tempering were enhanced by P addition (3) The tensile and yield strengths at room and elevated temperatures were increased by P addition, but elongation and reduction of area at room temperature were slightly decreased. The impact strength were lowered with P content. (4) The corrosion resistance to 40% boiling nitric acid was enhanced by less than 0.05% P, but the resi stance to 5% boiling acetic acid was decreased by P addition.
社団法人日本鉄鋼協会の論文
1961-01-01