Tag: ADI

Advantages:

• Compared with traditional ductile iron, ADI has higher strength, toughness and wear resistance.

• Compared with steel, it has better cost performance and lower density, which can reduce the weight of the structure.

Challenges:

• The production process is relatively complex, and the time control and temperature control of austenite step quenching need to be strictly managed.

• In some high temperature or special corrosive environments, the corrosion resistance of ADI may be insufficient and additional surface treatment is required.

Hiwowsport ADI Products,Tensile strength ≥1400Mpa,Elongation>2%Good damping capacity, goodwear resistance, high bendingfatigue and contact fatiguestrength (equivalent to low.alloy steel), light weight (10%lighter than steel).To know more,please contact Maggie@hiwowsport.com

ADI（Austempered Ductile Iron） is a ductile iron. Through the austenite graded quenching heat treatment process, the structure of ductile iron is transformed into a mixed structure of austenite and ferrite. It is characterized by high strength, high toughness, and good wear resistance and fatigue resistance. Compared with ordinary ductile iron, ADI material has higher strength and wear resistance, and is relatively light in weight, so it has been widely used in many industrial fields.

Hiwowsport ADI Products,Tensile strength ≥1400Mpa,Elongation>2%Good damping capacity, goodwear resistance, high bendingfatigue and contact fatiguestrength (equivalent to low.alloy steel), light weight (10%lighter than steel).To know more,please contact Maggie@hiwowsport.com

According to application requirements, the mechanical properties of ADI castings can be optimized by adjusting the austenite graded quenching process parameters. The specific adjustment parameters include:

• Quenching temperature: It can control the ratio of austenite and ferrite in the structure, thereby affecting the strength and toughness of the material.

• Holding time: The length of the holding time directly affects the formation of bainite and the distribution of spheroidal graphite, thereby determining the final material properties.

Hiwowsport ADI Products,Tensile strength ≥1400Mpa,Elongation>2%Good damping capacity, goodwear resistance, high bendingfatigue and contact fatiguestrength (equivalent to low.alloy steel), light weight (10%lighter than steel).To know more,please contact Maggie@hiwowsport.com

Due to its excellent comprehensive performance, ADI is used in many industries:

• Automotive industry: used to manufacture crankshafts, steering knuckles, gears, suspension components, etc. The high strength and lightweight characteristics of ADI materials help reduce the total weight of the vehicle and improve fuel efficiency.
• Agricultural machinery: Wear-resistant parts and transmission devices in agricultural equipment have to work in harsh environments, so ADI’s high strength and wear resistance make it an ideal choice.
• Construction and mining equipment: Castings of equipment such as excavators, crushers, and mills need to withstand large loads and wear, and ADI has also been widely used in these fields.
• Railways and rail transit: Railway braking systems, wheels and other components require high wear resistance and strength, and ADI castings can meet these requirements.

Hiwowsport ADI Products,Tensile strength ≥1400Mpa,Elongation>2%Good damping capacity, goodwear resistance, high bendingfatigue and contact fatiguestrength (equivalent to low.alloy steel), light weight (10%lighter than steel).To know more,please contact Maggie@hiwowsport.com

The process of manufacturing ADI is mainly divided into two steps:

• Casting ductile iron: First, the ductile iron casting is cast to control the chemical composition (such as the content of elements such as carbon, silicon, and manganese) and casting quality of the casting.
• Austenite step quenching: Ductile iron castings are quenched in the austenite temperature range and then kept warm to control the microstructure transformation. Through this process, ferrite is transformed into bainite, while spheroidal graphite remains in the iron matrix, which gives ADI unique mechanical properties.

Hiwowsport ADI Products,Tensile strength ≥1400Mpa,Elongation>2%Good damping capacity, goodwear resistance, high bendingfatigue and contact fatiguestrength (equivalent to low.alloy steel), light weight (10%lighter than steel).To know more,please contact Maggie@hiwowsport.com