Research Progress in Hierarchically Heterogeneous 316L Stainless Steel by Additive Manufacturing at Institute of Mechanics

Stainless steel is a marvel of modern metallurgy, renowned for its durability, corrosion resistance, and sleek appearance. From kitchenware to skyscrapers, this material is indispensable across various industries. But what exactly makes it so unique?

When delving into the field of mechanical machining, a question often arises: Alloy Steel vs. Stainless Steel – which is the better choice? Both materials are widely used across various industries like automotive and construction, and each possesses unique advantages. Understanding the differences between them is crucial for making informed decisions in manufacturing, design, and engineering projects.

Among the various utensils in the kitchen, the stainless steel pot might be the most common one. It sits quietly on the stovetop, witnessing the creation of every delicious meal. However, you might not know that this seemingly ordinary kitchen companion was once a "star material" in the field of aerospace. Today, let’s uncover the mysterious "resume" of the stainless steel pot and explore its legendary journey from aerospace to the kitchen.

Silicon steel, also known as electrical steel, is an essential foundational material indispensable to the modern electrical engineering industry. The addition of silicon significantly alters the electromagnetic properties of the steel, endowing it with high magnetic permeability, low iron loss, and excellent resistivity.

The main body of a transformer consists of a core and conductors. The core is primarily made of laminated silicon steel sheets. Silicon steel sheets are steel plates with a silicon content of 0.8% to 4.8%, exhibiting strong magnetic conductivity. In transformers, silicon steel sheets can generate high magnetic flux density, and their performance directly influences the transformer's size.

In the power industry, silicon steel is primarily divided into two major categories: oriented silicon steel and non-oriented silicon steel. Although both are silicon-iron alloys, they exhibit significant differences in performance, production processes, and application fields.

Stainless steel refers to a general term for alloy steel that exhibits high chemical stability in atmospheric, aqueous, acidic, alkaline, salt solution, or other corrosive media. Generally, stainless steel refers to steel that is resistant to corrosion from weak media such as the atmosphere, steam, and water, while acid-resistant steel refers to steel that is resistant to corrosion from chemical erosive media such as acids, alkalis, and salts.