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Segregation in steel

Stead s reagent. A metallographic etching solution consisting of acidified copper chloride. It is useful in detecting phosphorous segregation in steel. Copper tends to deposit on parts of low phosphorous content. [Pg.1176]

Figure 6.8. Compositional map made with an early model of the scanning electron microprobc. The pictures show the surface segregation of Ni. Cu and Sn dissolved in steel as minor constituents the two latter constituents enriched at the surface cause hot shortness (embrittlement at high temperatures), and this study was the first to demonstrate clearly the cause (Melford I960). Figure 6.8. Compositional map made with an early model of the scanning electron microprobc. The pictures show the surface segregation of Ni. Cu and Sn dissolved in steel as minor constituents the two latter constituents enriched at the surface cause hot shortness (embrittlement at high temperatures), and this study was the first to demonstrate clearly the cause (Melford I960).
A careful, quantitative study on grain boundary segregation, boron segregation in austenitic stainless steels of types 316L (with 206 at. p.p.m. of boron, and with <5 at. p.p.m. of boron) and Mo-free 316L (75 at. p.p.m. boron), has been reported by Karlsson, Norden, and Andren36 using a combination of TEM, FIM, AP and IAP techniques. Concen-... [Pg.329]

The interpretation of these results is that, in the austenitic mode of solidification, both chromium and nickel segregate to the interdendritic liquid, whereas only nickel segregates in the ferritic mode. The high I (Ni)-values in the ferritic-austenitic steels are remarkable. [Pg.146]

Titanium in steel number 405 was found both in the interdendritic austenite and in the carbides. Niobium in steel 406 segregated to the interdendritic ferrite and was also present as carbides. In steel 413, the interdendritic areas were enriched with copper. [Pg.147]

Clayton D. B. Smith T. B. Brown J. R., Application of electronprobe microanalysis to the study of micro segregation in a low alloy steel. J. Inst, of Metals 90 (1961-62) 224-228... [Pg.151]

Ward R. G., Effect of annealing on the dendritic segregation of manganese in steel. JISI, 194 (1956) 930-932... [Pg.151]

Fredriksson H. Heilner L., The influence of carbon on the segregation of chromium in steel. Scand. J. Metallurgy 3 974),6 -68... [Pg.152]

Sandberg H., Influence of titanium on micro segregations in high-speed steel ingots. Scand. J. Metallurgy, 2 (1973), 233-241... [Pg.153]

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See also in sourсe #XX -- [ Pg.34 , Pg.35 ]



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In steel

Steel segregation

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