使时效硬化 (In the late 1950s a new series of alloy steels was developed, all of them containing about 18 per cent nickel, between 8 ~ 12 per cent of cobalt, from 3 ~ 5 per cent molybdenum and smaller additions of titanium and aluminium. Because their structure is similar to that of martensite discussed on page 176 and because they can be age-hardened they are called Maraging steels. 20 世纪 50 年代末，人们开发出一个新的合金钢系列。这个系列的所有钢种都含有约 18% 的镍、8% -12% 的结和 3%~5% 的钼及少量的钛和铝。由于这种合金钢的结构与本书176页论述的马氏体相类似，同时又可以时效硬化，故称为马氏体时效硬化钢。)

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时效硬化

age-hardening

: 30 Phrasen in 5 Thematiken

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