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| OBSERVATION OF PHOSPHORUS SEGREGATION AND ITS INFLUENCE UPON EMBRITTLEMENT IN STEELS |
| Res. Gp. of Phosphorus Segregation (Institute of Metal Research; Academia Sinica) |
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Cite this article:
Res. Gp. of Phosphorus Segregation (Institute of Metal Research; Academia Sinica). OBSERVATION OF PHOSPHORUS SEGREGATION AND ITS INFLUENCE UPON EMBRITTLEMENT IN STEELS. Acta Metall Sin, 1981, 17(2): 124-239.
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Abstract The phosphorus segregation in certain steels has been observed by means of metallography and EPMA. It was found that such a segregation may cause the intergranular fracture in steel which is confirmed by an Auger spectroscopic analysis. The coefficient of phosphorus segregation α seems to have a quantitative relationship with the deformation ratio θ of steels lgα=A(1/θ~(1/2)), where A is a material constant of working temperature and test condition. In addition, some influences of the local segregation of phosphorus upon the fracture toughness of steels were determined. The average J_(Ⅰc) and K_(Ⅰc) of normal specimens and ones with cracks through segregation region are 9.87 and 7.68 kgf/mm, and 477 and 419 kgf/mm~(3/2) respectively.
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Received: 18 February 1981
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[1] 金属研究所,大冶钢厂,H31Mo钢剖锭试验总结,1979．
[2] Viswanathan,R., Met. Trans., 2 (1971) , 809．
[3] 曲哲,物理,4(1978) ,228 |
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