Study of Alpha-Sigma Phase Transformation in Mechanically Alloyed Fe-Cr-Sn Alloys
Study of Alpha-Sigma Phase Transformation in Mechanically Alloyed Fe-Cr-Sn Alloys
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DOI：
10.1002/1521-396x(200102)183:2
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发表时间：
2001-02
期刊：
影响因子：
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通讯作者：
B. Costa;G. Caër;N. A. Campos
中科院分区：
文献类型：
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作者：
B. Costa;G. Caër;N. A. Campos
(A)科英布拉大学物理系，P-3000科英布拉，葡萄牙(B)LSG2M，UMRCNRS7584，Ecoledes Mines，F-54042 NancyCedex，France(ReceivedApril3,2000；inrevisedformSeptember20,2000；acceptedSeptember21,2000)Subjectclassification:64.70.Nd；S1.1；S1.2The在近等原子Fe-Cr合金中的机械合金化显著提高了锡的溶解度。用不同的方法研究了锡浓度和晶粒度对该相形成动力学的影响。球磨合金的S相形成速度比常规合金快得多。与coarse-grainedalloys.Themechanismswhichareresponsiblefortheslowing-downofthea–s transformationaredifferentinbothkindsofalloys.一样，纳米晶合金中的S相的形成速率随着锡含量的增加而降低
(a)PhysicsDepartmentoftheUniversityofCoimbra,P-3000Coimbra,Portugal(b)LSG2M,UMRCNRS7584,EcoledesMines,F-54042NancyCedex,France(ReceivedApril3,2000;inrevisedformSeptember20,2000;acceptedSeptember21,2000)Subjectclassification:64.70.Nd;S1.1;S1.2The solubility of tin is significantly extended by mechanical alloying in near equiatomic Fe–Cralloys. The influences of Sn concentration and of grain size on the kinetics of formation of thes-phase have been studied using different techniques. The s-phase formation is much faster foras-milled alloys than it is for conventional alloys. The s-phase formation rate decreases with theincrease of Sn concentration in alloys with nanometer-sized grains as it does in coarse-grainedalloys.Themechanismswhichareresponsiblefortheslowing-downofthea–s transformationaredifferentinbothkindsofalloys.