A5056842503- Surface Treatment and Residual Stress
- Metal and Thin Film Mechanics
- Metal Alloys Wear and Properties
- Additive Manufacturing Materials and Processes
- Orthopedic Surgery and Rehabilitation
- Tribology and Wear Analysis
- Engineering Applied Research
- Fatigue and fracture mechanics
- Erosion and Abrasive Machining
- Advanced materials and composites
- Orthopaedic implants and arthroplasty
- Microstructure and Mechanical Properties of Steels
- Additive Manufacturing and 3D Printing Technologies
- Advanced ceramic materials synthesis
- Advanced Surface Polishing Techniques
- Sarcoma Diagnosis and Treatment
- High Entropy Alloys Studies
- Shoulder Injury and Treatment
- Trauma Management and Diagnosis
- Shoulder and Clavicle Injuries
- Hip and Femur Fractures
- Elbow and Forearm Trauma Treatment
- Aluminum Alloys Composites Properties
- Hip disorders and treatments
- Bone Tumor Diagnosis and Treatments
Sun Moon University
2014-2023
Yeungnam University
2018
Keimyung University
1986-2006
Keimyung University Dongsan Medical Center
1994
Presbyterian Medical Center
1974-1975
Abstract This study investigates the influence of ultrasonic nanocrystal surface modification (UNSM) technique on mechanical characteristics and fatigue life two types annealed aged Inconel 718 alloys. The properties both UNSM‐treated alloys were compared with untreated specimens. alloy specimens was investigated by rotary‐bending tests. Results revealed that exhibited longer than those improvement in is mainly attributed to induced compressive residual stress subsurface UNSM technique.
Ultrasonic nanocrystal surface modification (UNSM) technology can be used for the treatment of specimens produced by additive manufacturing using directed energy deposition. We investigated change in quality characteristics treated with respect to UNSM process variables. The roughness and waviness deposited were adopted as objective functions optimal conditions determined response method (RSM). most affected static load, scanning speed having least effect. It was observed that a smaller...
Patients with spondylolysis or spondylolisthesis persistent symptoms often require surgical treatment. The purpose of this article is to present a new technique and clinical results 13 patients symptomatic spondylolysis/spondylolisthesis who were treated tension band wiring (intra- intersegmental) bone grafting techniques. This also presents the biomechanical effects these methods on canine lumbar spines experimental spondylolytlc defects. Thirteen adult patients, three spondylolysis, ten...
In this study, an ultrasonic nanocrystalline surface modification (UNSM) technique was applied to normal and heat-treated rails made of 60 kgK steel enhance the wear resistance wheel-rail interaction. The hardness compressive residual stress values untreated UNSM-treated were measured by Brinell tester X-ray diffraction technique, respectively. It found, according measurement results, that increased about 20% 8%, whereas induced 52% 62% for rails, rail showed a slightly higher than rail....