Parameter Optimization of Powder Metallurgy Material Impregnated with Diamond Nanoparticle Suspension

2021 ◽  
Author(s):  
Lupeng Wu ◽  
Weijie Shi ◽  
Tian Zhang ◽  
Chuanhui Yang ◽  
Haixia Zhao
Keyword(s):  
Powder Metallurgy ◽  
Parameter Optimization ◽  
Powder Metallurgy Material ◽  
Nanoparticle Suspension ◽  
Diamond Nanoparticle

Influence of Contacting Pressure on Current Stability and Tribological Properties of CPMM Collector Materials against Cu/Cr Alloy under High Sliding Speed with Electric Current

2008 ◽  
Vol 51 ◽  
pp. 99-104
Author(s):  
Jian Li ◽  
Yong Zhen Zhang ◽  
Peng Li ◽  
Bao Shangguan ◽  
San Ming Du
Keyword(s):  
Powder Metallurgy ◽  
Electric Current ◽  
Tribological Properties ◽  
Copper Alloy ◽  
Tribological Behavior ◽  
Dry Sliding ◽  
Powder Metallurgy Material ◽  
Copper Base ◽  
Current Collection ◽  
Pin On Disc

Dry sliding tests with electric current were carried out on a pin-on-disc system tribometer in this study, where copper-base powder metallurgy material and copper alloy QCr0.5 were used as the pin and the disc respectively. The researches were aimed at exploring relation between tribological properties and current stability of the couple under different loads. The results indicate that the current stability and friction coefficient increases with current and load. Moreover, co-effect between the current stability and tribological behavior has been found, which behaves in the way that the higher the current stability, the higher dynamic current collection capability and tribological properties.

ULTRASONIC FATIGUE BEHAVIOR OF A Fe-BASED WARM-COMPACTED POWDER METALLURGY MATERIAL

2013 ◽  
Vol 27 (19) ◽  
pp. 1341027
Author(s):  
YU-HENG LU ◽  
XUAN YE ◽  
LEI HU ◽  
FEI LUO ◽  
ZHI-YU XIAO
Keyword(s):  
Heat Treatment ◽  
Powder Metallurgy ◽  
Fatigue Strength ◽  
Fatigue Test ◽  
Fatigue Testing ◽  
Fatigue Behavior ◽  
Powder Metallurgy Material ◽  
Ultrasonic Fatigue ◽  
Ultrasonic Fatigue Test ◽  
Axial Fatigue

Fe -2 Cu -2 Ni -1 Mo -1 C powder metallurgy material was fabricated by die-wall lubricated warm compaction and ultrasonic fatigue test was carried out for as-sintered and heat treatment samples. Material fatigue strength reaches 249 MPa under axial fatigue testing. The sintered material consists of acicular martensite, pearlite, bainite and retained austenite. Tempered martensite is the major phases after heat-treatment. Cleavage plane and dimples is mixed fracture for sample after axial fatigue test. Mechanical properties of after heat treatment materials are improved and fatigue strength reaches 382 MPa under 107 cycles in bending ultrasonic fatigue test. The fatigue strength increases significantly in high cycles range.

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