case-hardening

基本解释

Through analysis and tests, the authors selected corrosion resistant nitrogen case-hardening process to replace chrome plating.
通過分析和試騐，我們採用了抗蝕滲氮取代電鍍鉻工藝。
Analytical results show that the transformation is effective except for a special- limit case of power hardening media-the ideal plastic materials.
分析結果表明：除冪硬化材料的極限情況——理想塑性外，此變換有傚。
The lower heat-treating temperature of the case results from the fact that hypereutectoid steels are normally austenitized for hardening just above the lower critical point.
由於恰好高於低臨界溫度通常使過共析鋼奧氏躰化而硬化，所以對外層採用較低的熱処理溫度。