Yes, sintered metal is indeed stronger. Through the high-temperature sintering process, metal particles “stick” together to form a tightly structured material with high mechanical strength and wear resistance, making the sintered metal stronger than the original metal particles and more adaptable to high-pressure, high-temperature, and corrosive environments.
During the sintering process, metal particles melt and combine at high temperatures, resulting in a new structure that is more compact and tough than the original metal particles. After the process is completed, a uniform and non-brittle structure is formed on the surface of the sintered metal, which results in excellent mechanical strength and wear resistance, surpassing conventional metals.
The strength of sintered metal mainly depends on specific parameters of the sintering process, including sintering temperature, holding time, cooling rate, as well as the type, particle size, and shape of the metal powder used. Under appropriate sintering conditions, sintered metals can achieve very high density and strength, even close to or equivalent to full density cast or forged metals. This is because the sintering process generates diffusion connections between metal powders and eliminates gaps between particles through high temperatures, greatly enhancing the cohesion and strength of the material.
Sintering can produce metals with finer structures, higher strength, and hardness. Firstly, the structure of sintered products is uniform and free from defects such as pores, slag inclusions, and sand holes, which are beneficial for improving their strength. Furthermore, due to the presence of powder particle gaps, sintered metals’ hardness and wear resistance are significantly better than similar products, thereby extending their service life. Sintered metal can also be further improved in strength, hardness, and wear resistance by selecting appropriate alloying elements for doping or through subsequent heat treatment processes such as tempering, quenching, aging, etc.
In short, sintered metals are indeed more robust than ordinary metals. This is mainly due to its unique production process, which plays an important role in many high-end fields due to its high rigidity. It improves the performance of industrial equipment and product quality. With the progress of technology and production technology, sintered metal will play a more important role in more fields by demonstrating its strong robustness.
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