A5040029787- Advanced materials and composites
- Non-Destructive Testing Techniques
- Metal and Thin Film Mechanics
- Tunneling and Rock Mechanics
- Fatigue and fracture mechanics
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Corrosion Behavior and Inhibition
- Hydrogen embrittlement and corrosion behaviors in metals
- Metallurgy and Material Forming
- Diamond and Carbon-based Materials Research
- Advanced machining processes and optimization
- Tribology and Wear Analysis
The Ohio State University
2019-2020
Eaton (United States)
2015
Michigan State University
2011-2014
Tool wear of polycrystalline diamond inserts was analyzed in turning experiments on Ti-6Al-4V. Evidence phase transformation titanium work material is presented and its impact tool discussed. Confocal laser scanning microscopy used to analyze the rake face inserts. At cutting speed 61 m/min, exhibited scalloped-shaped, fractured wear, characteristic typical attrition wear. 122 a smooth crater observed, which diffusion/dissolution 91 features were combination those observed at speeds m/min...
The effects of fatigue loading frequency (f), sensitization, and crack length on corrosion growth rates (da/dN) were investigated for AA5456-H116 under full immersion in 3.5 wt% NaCl. Results from fracture mechanics-based experiments conducted at a constant stress-intensity range (ΔK) load ratio (R) suggest that highly sensitized microstructures (ASTM G67 nitric acid mass loss tests [NAMLT] value 24 mg/cm 2 higher) exhibit increased da/dN over the as-received condition (NAMLT 5 ) onset an...
This paper presents a series of experimental and theoretical efforts that we have made in unraveling the tool wear mechanisms under steady state conditions machining for last few decades. Two primary modes considered this are flank crater wear. We preface by stating is explained as abrasive due to hard phases work material while combination generalized dissolution which encompasses both well diffusion However, was not function cementite content when turning low alloy steels with pearlitic...
This paper presents evidence of phase transformation in turning titanium work material and discusses its impact on tool wear. Tool wear polycrystalline diamond inserts was studied experiments Ti-6Al-4V. Confocal laser scanning microscopy conducted to analyze the rake face inserts. At cutting speeds 61m/min, exhibited scalloped-shaped, fractured, uneven, rough is characteristic attrition 122m/min, smooth even nature, which a typical diffusion/dissolution speed 91m/min, combination those...
Dry turning experiments on Ti-6Al-4V were conducted using two grades (finer and coarser) of carbides polycrystalline diamond (PCD) inserts to study tool wear. Despite minor compositional difference between carbide grades, both contain 6% Co. Crater wear flank measured Confocal Laser Scanning Microscopy (CLSM). Three dimensional rake surface topographies reconstructed from the CLSM data profiles extracted. Finite Element Analysis (FEA) was effects cutting conditions thermal properties face...
The interplay between stress corrosion cracking (SCC) and fatigue was investigated for AA5456-H116 to determine the source of inverse relationship loading (f) crack growth rates (da/dN). Sensitization in 5xxx series aluminum alloys refers precipitation β on α-aluminum grain boundaries, which can occur high-Mg after sufficient exposure temperatures as low 40°C. Recent research has established that da/dN sensitized be inversely dependent f. severity f been attributed sensitization level, alloy...