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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Tin Addition on the Microstructure Development and Corrosion Resistance of Sintered 304L Stainless Steels
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Effect of Tin Addition on the Microstructure Development and Corrosion Resistance of Sintered 304L Stainless Steels

机译：锡对304L烧结不锈钢组织发展和耐蚀性的影响

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摘要

The effect of tin powder addition on themicrostructure development during sintering and corrosion re-sistance of the 304L-Sn metallurgical system was investigated.Specimens containing 1 to 4 wt percent Sn were sintered inhydrogen at temperatures ranging from 800 to 1300 deg C.During sintering at temperatures below 1000 deg C, most of theliquid phase was retained at the site originally occupied by thetin powder. At temperatures above 1050 deg C, the tin-baseliquid phase spread and uniformly distributed among the 304Lsolid particles. Adding tin powder and the resultant liquid phaseled 304L powder compacts to expand during sintering. Animmersion test in 1 M H_2SO_4 and metallographic observationshowed that pitting always initiated at the spots with lower tincontent, and the tin atom enrichment had the beneficial effect ofimproving the corrosion resistance of sintered 304L stainless steels.
机译：研究了锡粉的添加对304L-Sn冶金系统烧结过程中显微组织发展和耐蚀性的影响。在800至1300摄氏度的温度下，在氢气中烧结了含锡量为1-4％的锡试样。在低于1000℃的温度下，大部分液相保留在最初由锡粉占据的位置。在高于1050摄氏度的温度下，锡基液相扩散并均匀分布在304L固体颗粒之间。加入锡粉和所得液相的304L粉末压实以在烧结期间膨胀。在1 M H_2SO_4中进行的浸泡试验和金相观察表明，点蚀总是在锡含量较低的部位开始，而锡原子的富集具有改善304L不锈钢烧结体耐蚀性的有益作用。

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