Comparison between nitrogen alloyed Fe - Mn-based damping steels and ferritic damping steels

Abstract

A variety of damping steels have been developed in recent years for construction purposes. Ferritic and martensitic high-damping steels are the most important groups of damping steels. In the former case, damping is based on magnetoelasticity and in the latter case damping is mainly based on dissipative motion of the interfaces between martensite and austenite phases. Damping properties of two steels of both groups were compared in this report. Compositions of the ferritic steels were Fe-12Cr-3Mo and Fe-2.5Al-0.5Si, and compositions of the martensitic steels were Fe-17.5Mn and Fe-13.7Mn-0.2N. Damping properties of all of those steels were good at room temperature. The highest damping capacity was in alloy Fe-13.7Mn-0.2N. This alloy is the most suitable of these steels to engineering applications because its mechanical properties are better than those of the other steels studied.

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels

“…The development of the new Fe -Al -Si and Fe -Al based HDAs in Japan [4,12,13] and in Russia [9 -11] provided an opportunity for improving the situation. It was shown that the full-scale industrial metallurgical equipment can be used to fabricate Fe -Al -Si or Fe -Al based HDAs and it resulted in the development of the high damping steels "Serena", "Intellial" (Japan) [4,12,13] and 01Ю5T (Russia) [7,14]. The use of the full-scale industrial equipment reduces the cost of manufacturing of these steels, providing an opportunity for a widespread practical application of the high damping steels.…”

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels

“…The development of the new Fe -Al -Si and Fe -Al based HDAs in Japan [4,12,13] and in Russia [9 -11] provided an opportunity for improving the situation. It was shown that the full-scale industrial metallurgical equipment can be used to fabricate Fe -Al -Si or Fe -Al based HDAs and it resulted in the development of the high damping steels "Serena", "Intellial" (Japan) [4,12,13] and 01Ю5T (Russia) [7,14]. The use of the full-scale industrial equipment reduces the cost of manufacturing of these steels, providing an opportunity for a widespread practical application of the high damping steels.…”

Microstructural Changes of Fe-22Mn-12Cr-4Co-0.3Ti-xSi Alloys During Solution Nitriding

“…Since these factors can be controlled by addition of foreign elements into the matrix and heat treatment, recently many researches on the damping alloys have been performed [1,[2][3][4][5][6]. It has been well known that nitrogen has a greater solid-solubility in austenite, is a strong austenite stabilizer and an interstitial solid-solution strengthener, improves corrosion resistance and mechanical properties such as hardness and tensile strength [7][8][9][10], and is a useful element to improve the surface properties of stainless steels [11][12][13][14]. Si decreases the degree of austenite stability, reduces the energy for the formation of stacking fault [15,16], does not have the chemical affinity with nitrogen, and has quite small solubility in nitride.…”

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels

“…The development of the new Fe -Al -Si and Fe -Al based HDAs in Japan [4,12,13] and in Russia [9 -11] provided an opportunity for improving the situation. It was shown that the full-scale industrial metallurgical equipment can be used to fabricate Fe -Al -Si or Fe -Al based HDAs and it resulted in the development of the high damping steels "Serena", "Intellial" (Japan) [4,12,13] and 01Ю5T (Russia) [7,14]. The use of the full-scale industrial equipment reduces the cost of manufacturing of these steels, providing an opportunity for a widespread practical application of the high damping steels.…”

Microstructural Changes of Fe-22Mn-12Cr-4Co-0.3Ti-xSi Alloys During Solution Nitriding

“…Since these factors can be controlled by addition of foreign elements into the matrix and heat treatment, recently many researches on the damping alloys have been performed [1,[2][3][4][5][6]. It has been well known that nitrogen has a greater solid-solubility in austenite, is a strong austenite stabilizer and an interstitial solid-solution strengthener, improves corrosion resistance and mechanical properties such as hardness and tensile strength [7][8][9][10], and is a useful element to improve the surface properties of stainless steels [11][12][13][14]. Si decreases the degree of austenite stability, reduces the energy for the formation of stacking fault [15,16], does not have the chemical affinity with nitrogen, and has quite small solubility in nitride.…”

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels

“…The development of the new Fe -Al -Si and Fe -Al based HDAs in Japan [4,12,13] and in Russia [9 -11] provided an opportunity for improving the situation. It was shown that the full-scale industrial metallurgical equipment can be used to fabricate Fe -Al -Si or Fe -Al based HDAs and it resulted in the development of the high damping steels "Serena", "Intellial" (Japan) [4,12,13] and 01Ю5T (Russia) [7,14]. The use of the full-scale industrial equipment reduces the cost of manufacturing of these steels, providing an opportunity for a widespread practical application of the high damping steels.…”

Microstructural Changes of Fe-22Mn-12Cr-4Co-0.3Ti-xSi Alloys During Solution Nitriding

“…Since these factors can be controlled by addition of foreign elements into the matrix and heat treatment, recently many researches on the damping alloys have been performed [1,[2][3][4][5][6]. It has been well known that nitrogen has a greater solid-solubility in austenite, is a strong austenite stabilizer and an interstitial solid-solution strengthener, improves corrosion resistance and mechanical properties such as hardness and tensile strength [7][8][9][10], and is a useful element to improve the surface properties of stainless steels [11][12][13][14]. Si decreases the degree of austenite stability, reduces the energy for the formation of stacking fault [15,16], does not have the chemical affinity with nitrogen, and has quite small solubility in nitride.…”