Microstructure and Mechanical Properties of 0.63C-12.7Cr Martensitic Stainless Steel during Various Tempering Treatments

Lin, Yuli; Lin, Chun-Yang; Tsai, Tsung-Yen; Lai, Hong-Jen

doi:10.1080/10426910903426307

Cited by 19 publications

(5 citation statements)

References 2 publications

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“…3d 1 ) was very high, compared to that in other specimens, which provided obvious evidence of the formation of a fresh martensite structure. 15) higher than that of the previous one.…”

Section: Evolution Of Precipitatescontrasting

confidence: 62%

Microstructural Evolution of Grade 91 Steel upon Heating at 760~1000 oC

He¹,

Chang²,

Lee³

et al. 2015

Korean. J. Mater. Res.

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The microstructural evolution of Grade 91 tempered martensite ferritic steels heat treated at 760~1000 o C for two hours was investigated using scanning electron microscopy(SEM), energy disperse spectroscopy(EDS), electron backscattered diffraction (EBSD), and transmission electron microscopy(TEM); a microhardness tester was also employed, with a focus on the grain and precipitate evolution process as well as on the main hardening element. It was found that an evolution of tempered martensite to ferrite(760~850 o C), and to fresh martensite(900~1000 o C), occurred with the increase of temperature. Simultaneously, the parabolic evolution characteristics of the low angle grain boundary(LAGB) increased with the increase of the heating temperature(highest fraction of LAGB at 925 o C), indicating grain recovery upon intercritical heating. The main precipitate, M 23 C 6 , was found to be coarsened slightly at 760~850 o C; it then dissolved at 850~1000 o C. Besides this, M 3 C cementite was formed at 900~1000 o C. Finally, the experimental results show that the hardness of the steel depended largely on the matrix structure, rather than on the precipitates, with the fresh martensite showing the highest hardness value.

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“…3d 1 ) was very high, compared to that in other specimens, which provided obvious evidence of the formation of a fresh martensite structure. 15) higher than that of the previous one.…”

Section: Evolution Of Precipitatescontrasting

confidence: 62%

Microstructural Evolution of Grade 91 Steel upon Heating at 760~1000 oC

He¹,

Chang²,

Lee³

et al. 2015

Korean. J. Mater. Res.

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“…The microhardness and wear property of the welded joint depends on the amount and type carbides. The amount of metallic carbides will depends on the heat treatment temperature, soaking period and cooling rate (9)(10)(11) . The distribution of carbides in the matrix also contributes the higher strength and ductility of the weld metal.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on effect of post weld heat treatments on the pitting corrosion and impact toughness of GTA welded martensitic stainless steel joints

Singh¹,

Singh²,

Shahi³

2021

IJST

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“…Because of the segregation of the alloying elements, many large eutectic carbides precipitate in the cooling process [7]. These carbides can hardly be removed in the following hot working and heat treatment [8,9]. In the working process of steel, large carbides can induce a stress concentration [8], causing the generation of cracks in steel [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…These carbides can hardly be removed in the following hot working and heat treatment [8,9]. In the working process of steel, large carbides can induce a stress concentration [8], causing the generation of cracks in steel [10,11]. Edges crazing is one of the most common failure modes during the cold rolling of high-carbon martensitic stainless steels used for high-grade knives and scissors.…”

Section: Introductionmentioning

confidence: 99%

Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV

Shi

et al. 2016

Metals

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Abstract:The effect of titanium on the carbides and mechanical properties of martensitic stainless steel 8Cr13MoV was studied. The results showed that TiCs not only acted as nucleation sites for δ-Fe and eutectic carbides, leading to the refinement of the microstructure, but also inhibited the formation of eutectic carbides M 7 C 3 . The addition of titanium in steel also promoted the transformation of M 7 C 3 -type to M 23 C 6 -type carbides, and consequently more carbides could be dissolved into the matrix during hot processing as demonstrated by the determination of extracted carbides from the steel matrix. Meanwhile, titanium suppressed the precipitation of secondary carbides during annealing. The appropriate amount of titanium addition decreased the size and fraction of primary carbides in the as-cast ingot, and improved the mechanical properties of the annealed steel.

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Microstructure and Mechanical Properties of 0.63C-12.7Cr Martensitic Stainless Steel during Various Tempering Treatments

Cited by 19 publications

References 2 publications

Microstructural Evolution of Grade 91 Steel upon Heating at 760~1000 oC

Microstructural Evolution of Grade 91 Steel upon Heating at 760~1000 oC

Experimental studies on effect of post weld heat treatments on the pitting corrosion and impact toughness of GTA welded martensitic stainless steel joints

Effect of Titanium on the Microstructure and Mechanical Properties of High-Carbon Martensitic Stainless Steel 8Cr13MoV

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