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由于七十年代初期的燃料危机,以及随后的能源价格上涨,氮基气氛在热处理工艺中日益承担起重要角色。当前已有14％的热处理工厂采用的氮基气氛。虽然氮基气氛在整个热处理工业中已广泛应用,但宇航热处理工作者仍不愿改用这种工艺。宇航工业中仅把氮气用来回充真空炉,以及供各种钝化和吹洗的需要。然而,有些公司例如Ft.Worth的Menasco公司和弗尼吉亚州诺福克的Naval空气再制工厂已将高强度钢淬火改用氮基气氛。一般来说,宇航工业不愿改用氮基气氛是基于不能肯定这种工艺是否符合军标和宇航规范,以及由于这些气氛的效果缺乏完整的资料,而军标和其他宇航规范纳入这种工艺的修订步伐又很缓慢,从而,进一步促成了不能肯定的想法。
Due to the fuel crisis of the early 1970s and the subsequent rise in energy prices, the nitrogen-based atmosphere has played an increasingly important role in the heat treatment process. Currently, 14% of the heat treatment plant nitrogen-based atmosphere. Although the nitrogen-based atmosphere has been widely used throughout the heat treatment industry, aerospace heat treatment workers are still reluctant to switch to this process. In the aerospace industry, only nitrogen is used to recharge the vacuum furnace, as well as for various passivation and purging needs. However, some companies such as Menasco of Ft. Worth and Naval Air Refineries in Norfolk, Virginia, have switched from high-strength steels to nitrogen-based atmospheres. In general, the reluctance of the aerospace industry to switch to nitrogen-based atmospheres is based on the inability to be certain that such processes comply with military and aerospace norms, and the lack of complete information on the effects of these atmospheres, while military and other aerospace specifications incorporate such processes The pace of revision was slow, further contributing to the unidentifiable idea.