求高手人工翻译!!在线等待,可以的送高分。
Tocontrolthemechanicalproperties,itisessentialtostartwithastructureofaustenitesinceit...
Tocontrol the mechanical properties, it is essential to start with a structure of
austenite since it is the state where the carbon atoms are distributed into the
iron matrix uniformly. The austeniticstructure in steels is achieved by heating it and soaking at a temperatureabove 723。C,depending on the carbon percentage.
Typicaltemperatures used for various heat treatment processes of general steels aregiven in Table 4-1.Relevant portion ofthe iron-carbon equilibrium diagram is presented in Fig.4--l, with thetemperatures marked for the various carbon compositions.Up to theeutectoid composition, complete austenite is achieved by heating above the lineKL, but in hyper-eutectoid steels not all cementite is dissolved in austeniteby heating just above the line KM(Fig.4--1) 展开
austenite since it is the state where the carbon atoms are distributed into the
iron matrix uniformly. The austeniticstructure in steels is achieved by heating it and soaking at a temperatureabove 723。C,depending on the carbon percentage.
Typicaltemperatures used for various heat treatment processes of general steels aregiven in Table 4-1.Relevant portion ofthe iron-carbon equilibrium diagram is presented in Fig.4--l, with thetemperatures marked for the various carbon compositions.Up to theeutectoid composition, complete austenite is achieved by heating above the lineKL, but in hyper-eutectoid steels not all cementite is dissolved in austeniteby heating just above the line KM(Fig.4--1) 展开
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控制的机械性能,这是必不可少的开始与结构
奥氏体因为它是在碳原子分布在
铁基体中均匀。钢中的austeniticstructure是通过加热,浸泡在723摄氏temperatureabove。,取决于碳的百分比。
typicaltemperatures用于各种热处理工艺一般钢表4-1.relevant部分给出了铁碳平衡图是在fig.4--l,与thetemperatures标记的各种碳组成。上theeutectoid组成,完全奥氏体是通过加热以上的linekl,但不是所有的hyper-eutectoid钢渗碳体溶解在austeniteby加热略高于行公里(图4——1)
奥氏体因为它是在碳原子分布在
铁基体中均匀。钢中的austeniticstructure是通过加热,浸泡在723摄氏temperatureabove。,取决于碳的百分比。
typicaltemperatures用于各种热处理工艺一般钢表4-1.relevant部分给出了铁碳平衡图是在fig.4--l,与thetemperatures标记的各种碳组成。上theeutectoid组成,完全奥氏体是通过加热以上的linekl,但不是所有的hyper-eutectoid钢渗碳体溶解在austeniteby加热略高于行公里(图4——1)
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