摘要
用透射电子显微镜对经渗硼的45钢作了观察。结果表明,磨损表层的硼化物中产生孪晶和层错,过渡区的铁素体中产生位错网,珠光体片层间距变小,部分渗碳体碎化。
Metallographic examination of borided 45 steel sample was made by transmission electron microscopy. Result shows: there are twin in the boride layer and dislocation network in ferrite of the trasitional region; distance between lamellae of pearlite is reduced and some cementites are broken.
关键词
珠光体
钢
硼化物
亚结构
磨损
Pearlite steels
Surface layer examination
Borides
Substructure
Friction-wear tests
