The strength, toughness and surface hardness of medium Manganese austenitic steel have been increased greatly by casting surface alloying and complex modification.
通过铸造表面合金化和复合变质处理，使中锰奥氏体钢的强度、韧性和表面硬度显著提高。
The hardness and its microhardness of medium phosphorus white cast iron are higher than those of the common white cast iron, but its impact toughness slightly decreases.
中磷白口铸铁的宏观硬度和显微硬度高于普通白口铸铁，但冲击韧性略有降低。
The effect of some common carboxylic acids as well as sulphuric acid concentration on thickness and hardness of medium temperature anodizing film of Al alloy was investigated.
研究了一些常见的羧酸以及硫酸浓度等对铝合金中温阳极氧化膜的厚度和硬度的影响。
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