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在真空感应炉中用H2与GH132合金液平衡的方法,得到了具有不同H含量的锭子,研究了铸锭H含量对GH_(132)合金中温塑性的影响。结果表明,铸锭H含量不同(分别从2.0毫升/100克到19.6毫升/100克),但试棒H含量被降到同一水平(0.5毫升/100克左右)时,合金塑性相同,均不产生中温低塑性区。 研完了微量pb对GH132合金中温塑性的影响,发现0.0002％的pb便急剧恶化GH132合金的中温塑性,导致中温低塑性区的产生。pb的有害作用可解释为降低晶界强度及等强温度。
In the vacuum induction furnace with H2 and GH132 alloy liquid equilibrium method, have different H content of the spindle, H content of ingot ingot GH GH alloy (132) temperature plasticity. The results showed that the content of ingot H was different (from 2.0ml / 100g to 19.6ml / 100g respectively), but the H content of the test bar was reduced to the same level (about 0.5ml / 100g) Produce low temperature plastic zone. Finishing a trace amount of pb GH132 alloy temperature plasticity and found that 0.0002% pb will dramatically deteriorate the GH132 alloy mid-temperature plastic, resulting in low temperature plastic zone. The deleterious effects of pb can be explained by lowering the grain boundary strength and the isothermal temperature.