摘要
对喷九、爆炸和液压强化后Ｍｎ１３钢的表面强化层进行了ＴＥＭ分析、残余应力及疲劳强度的测定．结果表明：在表面形变强化过程中，若诱发生成α马氏体，由于显微裂纹的形成将会抵消栅栏效应对提高疲劳强度的有利作用．此外。
The strengthened layer of Mi13 steel after shot peniflg,surface explosion and surfad robe was anatwi by TEM teChniqlle. The residual stress and the fatigue strengthof the ac strengthened were measured by relevant methods. Experbental results shownthat: if the rnartenSitic transformation is induCed during the strengtheniflg Prccers, the accrocracks of high eqbofi rnartenSites can cancel out the bang effect Which will rad thebenbe fathoe strength of Mi13 steel;the macrrvreSiduai stress is not the controiliflg factor to inflnce the bending fattwe strength of the steel.
出处
《西安工业学院学报》
1995年第1期10-15,共6页
Journal of Xi'an Institute of Technology
基金
国家自然科学基金
关键词
高锰钢
喷丸
爆炸
滚压
表面硬化
弯曲疲劳
fatigue rotational bending fatigue hardening surface hardeningdeformation strengthening substructural bang effect martensitic transformation
