含铌中铬耐磨铸钢的摩擦磨损行为
张拓,滕铝丹,臧其玉,杨弋涛()
Friction and Wear Behavior of Niobium Alloyed Medium Chromium Wear-resistant Cast Steel
Tuo ZHANG,Lvdan TENG,Qiyu ZANG,Yitao YANG()

图5. 磨损截面的SEM形貌

Fig.5. SEM graphs of cross-section under the worn surface under parameters of 200 N and 0.5 m/s (a) 0Nb, (b) 0.2%Nb, (c) 0.5%Nb, (d) cracked carbide morphology in 0.5% Nb steel