英语翻译研究了碳含量在0.28%、0.35%,0.45%三种中碳低合金钢在空气、盐,水中冷却的过程,并在低温回火处理后得到的组织与机械性能.在中碳低合金钢中含碳量与冷却速度是影响其性能的主要原

Question

英语翻译
研究了碳含量在0.28%、0.35%,0.45%三种中碳低合金钢在空气、盐,水中冷却的过程,并在低温回火处理后得到的组织与机械性能.在中碳低合金钢中含碳量与冷却速度是影响其性能的主要原因,淬火介质是影响其冷却速度的主要原因.当淬火冷却速度低时,例如空淬,中碳低合金钢的含碳量应选0.45%,这样组织中会出现一定量贝氏体.当淬火冷却速度较大时,例如水淬,中碳低合金钢主要以马氏体形式存在,应尽量选择较低碳含量,本文中选择0.28%较优,这样可以避免出现脆性过大的隐针形马氏体.当淬火盐浴等温淬火时,中碳低合金钢出现大量贝氏体,盐浴时间影响不明显.

Answer 1

Research on the carbon content of 0.28%,0.35%,0.45% of carbon in three low-alloy steel in the air,salt,water cooling process,and after tempering at low temperatures has been the organization and mechanical properties.Carbon in the carbon content in low alloy steel and cooling rate affect the performance of the main reasons is the impact of Quenchant the main reason for the cooling rate.When the quenching cooling rate is low,such as air-quenched,low-alloy steel carbon carbon content of 0.45 percent should be elected so that there will be organized a certain amount of bainite.When the quenching cooling rate is high,such as water quenching,low-alloy steel of carbon exist in the form of mainly martensite should be to choose a lower carbon content,0.28 percent in this article better choice,so avoid excessive brittleness of the implicit needle-shaped martensite.When the salt-bath quenching Austempered when in a large number of carbon bainitic low-alloy steel,salt bath time was not obvious.