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Banding of MAR-Aging Steel

机译：MARAging钢带

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MAR-aging steels have gained a respectable position among design engineers who demand ultra-high strength, reasonable ductility, and good fracture toughness, especially where outerspace and aerospace applications are concerned. This specialty steel category of MAR-aging alloys owes its unique properties to a complex hardening reaction, which involves precipitation of uniform intragranular ribbons (Ni_3Mo phase) on dislocations during the treatment cycle. Like any other metallurgical process, MAR-aging treatment cycles can become quite difficult, if not impossible. When that condition does exist, the end result is often called a dead heat by MAR-aging technologists. This paper examines a dead heat and makes appropriate comparisons to other live heats. Salient differences and interactive similarities are both studied in terms of microstructure, serial sections, chemical composition, and selected mechanical properties. The intent of this paper is to shed more light on the previously indistinct subject of banding.
机译：在要求超高强度，合理的延展性和良好的断裂韧性的设计工程师中，MAR-时效钢已赢得了应有的重视，尤其是在涉及外太空和航空航天应用的场合。 MAR时效合金的这种特殊钢类别由于复杂的硬化反应而具有独特的性能，该硬化反应涉及在处理周期中在位错上析出均匀的晶粒内带（Ni_3Mo相）。像任何其他冶金工艺一样，MAR时效处理周期即使不是不可能的，也会变得非常困难。当确实存在这种情况时，MAR衰老技术人员通常将最终结果称为死热。本文研究了余热，并与其他实热进行了适当的比较。显着差异和交互相似性均在微观结构，系列截面，化学成分和选定的机械性能方面进行了研究。本文的目的是进一步阐明以前不清楚的带状主题。

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