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Fracture analysis of 45 steel (normalized state, impact test)
Abstract
This paper focuses on the fracture analysis of 45 steel in the normalizing state. Impact test was conducted to study the fracture process and understand the energy absorption characteristics of 45 steel. Fracture analysis is necessary to uncover the fracture initiation, constitution and ......
22/06/2023 
1058 
Sophie
Metallographic diagram of W6Mo5Cr4V2 (heating, quenching and oil cooling at 1220°C)
At a magnification of 500X, the microstructure of CrW6Mo5V2 steel heated to 1220℃ followed by oil quenching can be observed through a Scanning Electron Microscope (SEM). The polished cross sections were used to view the microstructure by SEM. Dislocations, grain boundaries, and pro-eutectoid ferr......
Subcutaneous air bubbles and their effects
Subcutaneous Bubble and Its Impact Subcutaneous bubbles, or subq bubbles, are pockets of air or gas that are located just below the skin. Although generally harmless, these bubbles can lead to long-term medical ramifications. Subcutaneous bubbles can occur naturally as a part of normal fluid exchan......
The main product defects of finished bar products and their avoidance
Steel bar product defects and prevention
Steel bars are one of the most commonly used materials in industrial production. However, due to the complex production and manufacturing process, it is impossible to avoid defects. The quality of steel bar products is directly related to the company’s pr......
surface bubbles
Surface Bubbles
Surface bubbles have emerged as an important phenomena in applied mathematics, fluid dynamics and molecular biology in the last two centuries. Despite this importance, the underlying physics of the surface bubbles and their dynamics are still not fully understood. This article pro......
Surface defects
Surface Defects
Surface defects are a common occurrence in any manufacturing process due to the nature of producing multiple items from raw materials. These defects can range from small visual blemishes, to major structural flaws that can be damaging to the performance and safety of the product. ......
Overview of common defects in large forgings
Overview of Common Defects of Large Forgings
Forging is a manufacturing process where metal is shaped by hammering and pressing into high-strength parts. Forgings are generally used in the manufacturing of automotive components and heavy machinery such as crankshafts, gears, shafts, and axles. La......
Properties and Classification of Steel Billet Surface Defects
Defects in the surface of steel billets are one of the most common problems faced by steel manufacturers and suppliers. They can significantly reduce the quality of the finished product, thereby reducing its final value. In order to prevent this from happening, it is important to identify the defe......
overheated tissue
Burns
A burn can be caused by any source of heat, such as fire, steam, hot liquids, and certain chemicals. Burns are classified according to the severity of the damage done to the skin tissue. First-degree burns affect only the outer layer of skin and cause pain, redness, and swelling; second-de......
ASTM A480M-1998 General requirements for flat-rolled stainless and heat-resistant steel plates, sheets, and strips (2)
ASTM A480M-1998 Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
1. Scope
1.1 This specification2 covers a group of general requirements that, unless otherwise specified in the purchase order or in an individual specification, shall apply to rolled steel plate, sheet, and s......
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