鉛入り黄銅の圧縮ねじり試験について

概要

論文の詳細を見る
Leaded brass, i.e. brass with small quantities of lead added to it, is used in many fields for mechanical purposes because of its anti-corrosive properties and machinability without diminishing its mechanical properties, such as tensile strength and hardness. The effect of adding lead to brass on its machinability has been studied in many fields, and it is intended in this paper to find out the characteristics of leaded brass regarding its rupture under combined stress by subjecting it to compression-torsion test. For specimens leaded brass rods based on α-brass (7/3 brass) containing 0〜3% lead, melted and extruded, were used, as the (α+β) brass is complex in structure and therefore inadequate for the purpose, and the trial compression-torsion testing apparatus was used. It has been found as the result that when lead is added to brass simultaneously under the compression stress and the shearing stress the brass is deteriorated in rupture strain, and it is found also that it is one of the reasons why the discontinuous chip is obtained when leaded brass is cut.
社団法人日本材料学会の論文
1967-09-15