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首页> 外文会议>5th International Conference on High Nitrogen Steels, 5th, May 27-28, 1998, Stockholm, Sweden >Alloy Design for Suppressing Eutectoid Reaction in High Nitrogen Austenitic Steels
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Alloy Design for Suppressing Eutectoid Reaction in High Nitrogen Austenitic Steels

机译：抑制高氮奥氏体钢中共析反应的合金设计

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摘要

In austenitic steels, nitrogen is an important alloying element in terms of phase balance, austenite stabilizing effect and solid solution hardening. In case a large amount of nitrogen is added to high chromium steels, austenitic stainless steels can be produced in Fe-Cr-N ternary alloys without nickel. For instance, Fe-23%Cr-0.9%N is just the composition which provides stable austenitic structure at room temperature. This alloy shows excellent mechanical properties; high yield stress, large work-hardening rate and good ductility. However, such excellent properties are guaranteed only on the condition that the alloy was quenched from an elevated temperature to avoid an eutectoid reaction; decomposition of austenite to Cr2N and ferrite, because eutectoid structure gives a harmful effect to the ductility of austenitic steels. In this paper, an alloy design for suppressing the eutectoid reaction was suggested and the effect of manganese addition to Fe-Cr-N ternary alloy was presented as an example.
机译：在奥氏体钢中，就相平衡，奥氏体稳定作用和固溶硬化而言，氮是重要的合金元素。如果向高铬钢中添加大量氮，则可以在不含镍的Fe-Cr-N三元合金中生产奥氏体不锈钢。例如，Fe-23％Cr-0.9％N只是在室温下提供稳定奥氏体结构的成分。这种合金具有优异的机械性能；屈服应力高，加工硬化率高，延展性好。但是，只有在将合金从高温淬火以避免共析反应的条件下，才能保证如此优异的性能。由于共析组织对奥氏体钢的延展性产生有害影响，因此奥氏体分解为Cr2N和铁素体。本文提出了一种抑制共析反应的合金设计方案，并举例说明了锰在Fe-Cr-N三元合金中的添加效果。

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