money 发表于 2007-8-3 16:12:58

请教怎么样看铁碳平衡图

<P class=MsoNormal style="MARGIN: 0pt; TEXT-INDENT: 10pt; LINE-HEIGHT: 13.5pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-char-indent-count: 1.0" align=left><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><IMG height=496 alt=Image:tietan01.jpg src="file:///C:/DOCUME~1/brnt39/LOCALS~1/Temp/msohtml1/01/clip_image001.jpg" width=367 v:shapes="_x0000_i1025"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">　　</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">Fe-Fe<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" UnitName="C" SourceValue="3" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SUB>3</SUB>C</st1:chmetcnv></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">平衡图由包晶、共晶、共析三个基本反应组成（见相图）。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman"> <BR></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">　　</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">①</SPAN><SPAN style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman"> </FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">在</SPAN><st1:chmetcnv w:st="on" UnitName="℃" SourceValue="1495" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">1495</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">℃</SPAN></st1:chmetcnv><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">HJB</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">线）发生包晶反应</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">,L<SUB>B</SUB>+δ<SUB>H</SUB></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">匊</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>J</SUB></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">。此时液相</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">LB(0.53</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">，</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">δ</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">铁素体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">δ<SUB>H</SUB>(0.09</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">，奥氏体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>J</SUB>(0.17</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">三相共存。冷凝时反应的结果形成奥氏体。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman"> <BR></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">　　</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">②</SPAN><SPAN style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman"> </FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">在</SPAN><st1:chmetcnv w:st="on" UnitName="℃" SourceValue="1148" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">1148</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">℃</SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">(ECF</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">线</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">发生共晶反应</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">,LC</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">匊</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>E</SUB>+Fe<st1:chmetcnv w:st="on" UnitName="C" SourceValue="3" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SUB>3</SUB>C</st1:chmetcnv></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">。此时液相</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">L<SUB>C</SUB>(4.30</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">，奥氏体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>E</SUB></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">2.11</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">）。渗碳体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">(6.69</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">三相共存。冷凝时反应的结果形成了奥氏体与渗碳体的机械混合物，通称为莱氏体。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman"> <BR></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">　　</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">③</SPAN><SPAN style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman"> </FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">在</SPAN><st1:chmetcnv w:st="on" UnitName="℃" SourceValue="727" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">727</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体">℃</SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-SIZE: 10pt; mso-font-kerning: 0pt"><FONT face="Times New Roman">(PSK</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">线</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">发生共析反应</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">,A<SUB>S</SUB></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">匊</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">FP+Fe<st1:chmetcnv w:st="on" UnitName="C" SourceValue="3" HasSpace="False" Negative="False" NumberType="1" TCSC="0"><SUB>3</SUB>C</st1:chmetcnv>,</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">此时奥氏体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>s</SUB>(0.77</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">，铁素体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">F<SUB>P</SUB>(0.0218</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">，渗碳体</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">(6.69</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">％</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">C)</FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">三相共存。冷却时反应的结果形成铁素体与渗碳体的混合物，通称珠光体。共析反应温度常标为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">A<SUB>1</SUB></FONT></SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体; mso-ascii-font-family: ??; mso-hansi-font-family: ??">温度。</SPAN><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman"> </FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0pt"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: ??; mso-font-kerning: 0pt; mso-bidi-font-family: 宋体"><FONT face="Times New Roman">如上图：不同碳含量的铁的A1、A2等温度是怎么看的？是不是这个也是临界点不确定的？</FONT></SPAN></P>

徐雪峰SD 发表于 2007-8-3 20:06:28

Re: 请教怎么样看铁碳平衡图

按照含碳量分成几个区域,再加上温度线
页: [1]
查看完整版本: 请教怎么样看铁碳平衡图