通过热处理试验对t 23钢的回火脆性进行了研究。
The temper brittleness of T23 steel was studied through heat treatment experiment.
回火完全淬硬钢得到的最终组织结构被称为回火马氏体。
The final structure obtained from tempering a fully hardened steel is called tempered martensite.
经过回火之后，钢的强度增大，因为其晶粒变细了。
After having been tempered, the steel becomes stronger because its grains get finer.
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