The Microstructure reveals the presence of chromium carbide and silicon carbide in the form of hexagonal type, needle type and cubodial type shapes. The addition of SiC in alloying elements improved the hardness of the substrate steels; however, higher microhardness has
Analysing Microstructure and Hardness of SS-304 Under
2023年7月24日 · The commonly observed carbide type in austenitic steel is M23C6, where M can be Cr, Fe, or Mo. During thermal treatment, this carbide may get precipitated at the grain boundary of γ-matrix which further may lead to intergranular corrosion. To avoid the type of corrosive action, a strong carbide former like Ti can be added to the alloy.
Homogeneity, metallurgical, mechanical, wear, and corrosion …
2023年11月1日 · The wear surface morphology of SS 304 steel coating with Ni and B 4 C showed a uniform and dense microstructure (Fig. 10). The presence of boron carbide particles in the coating enhanced the hardness and wear resistance of the material.
The basic microstructure of the substrate, as shown in Fig. 1, is constituted of equiaxed, twinned austenitic-grain structure, which is the typical microstructure of the 304 austenitic
Triple junction structure and carbide precipitation in 304L stainless ...
2013年6月17日 · Type 304L stainless steel (SS) samples were used to investigate the correlation between carbide precipitation and triple junction structure derived from crystallographic data obtained by the orientation imaging microscopy associated with electron backscattered diffraction.
Microstructure and mechanical properties of 304 stainless steel ...
2023年11月1日 · 304 stainless steel has excellent corrosion resistance, heat resistance and good plastic toughness, low-temperature strength, and other characteristics, often used in key parts requiring acid resistance, alkali resistance, and salt corrosion resistance, is the most widely used chromium-nickel stainless steel in the industrial field [1].
Deformation-induced microstructure and martensite effects on ...
1993年9月1日 · Plastic deformation of 304 stainless steel (SS) induces transgranular (TG) carbide precipitation, which is critically dependent on deformation-induced microstructural changes occurring during thermal treatment of the SS.
Effects of grain boundary structure on carbide precipitation in …
2001年7月13日 · Microstructures of type 304 austenitic stainless steel, produced through thermo-mechanical processing, were analysed with large area EBSD and optical image analysis assessments of the attacked ...
The Low-Cycle Fatigue Behavior, Microstructure Evolution, and …
2023年9月21日 · To study the fatigue failure and microstructure evolution behavior of SS304, low-cycle fatigue tests are conducted at room temperature (RT), 300 °C, and 650 °C. The results indicate that, because of the influence of the dislocation walls, carbon-containing precipitates, and deformation twins, the cyclic hardening behavior is presented at RT.
Microstructures for SS304 (a) SMAW (b) TIG (c) MIG
Lower carbon content than SUS304 (0,042% to 0,027%wt) [10] minimizes carbide formation. ... The effect of shielding gas composition and welding current on the mechanical-physical properties of...