测定了铸态16Mn,25MnTiB,Cr24NiTSi2N以及FeCrAl中的稀上合金化量。涂敷法自射线照相结果表明,在16Mn与25MnTiB中,分布于珠光体中的Ce比分布于铁素体中的Ce多。在FeCrAl耐热合金与Cr24NiTSi2N耐热钢中,当稀土含量高时,则稀土元素在晶界有明显的富集;在FeCrAl的不同晶粒内稀土的含量不同,具有微观的不均匀性。
The method for the determination of alloyed amounts of rare earth metals in steels developed previously by the authors was verified to be appropr ate Using this method, the alloyed amount of Ce in steels 16Mn, 25MnTiB, Cr24Ni7Si2N and Fe-Cr-A1 alloy has been analysed The microautoradiographs show that the alloyed Ce distributed among the pearlite is more than that among the ferrite in 16Mn or 25MnTiB steel. An enrichment of Ce was obviously observed by autoradiography to be segregated along the grain and dendrite boundaries in Fe-Cr-Al alloy or Cr24Ni7Si2N when the Ce content is notl ow The microscopic inhomogeneity of Ce distribution is presented among different grains of the Fe-Cr-Al alloy.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] |
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