技术交流 › 铸造论坛 › 球墨铸铁的疲劳性能与断裂韧度

HEATS 发表于 2010-9-12 19:13:20

球墨铸铁的疲劳性能与断裂韧度

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<TD vAlign=top width=180 colSpan=2 rowSpan=2>
<P align=center><STRONG>球墨铸铁的基体</STRONG></P></TD>
<TD vAlign=top width=77 rowSpan=2>
<P align=center><STRONG>抗拉强度<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">b</SPAN></SUB>/MPa</STRONG></P></TD>
<TD vAlign=top width=151 colSpan=2>
<P align=center><STRONG>无缺口试样</STRONG></P></TD>
<TD vAlign=top width=204 colSpan=3>
<P align=center><STRONG>45°V缺口试样</STRONG></P></TD>
<TD vAlign=top width=108 rowSpan=2>
<P align=center><STRONG>断裂韧度K<SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">I</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">C</SPAN></SUB></STRONG></P>
<P align=center><STRONG>/MPa√m</STRONG></P></TD></TR>
<TR>
<TD vAlign=top width=76>
<P align=center>疲劳极限 <SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-1</SPAN></SUB>/MPa</P></TD>
<TD vAlign=top width=74><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">1</SPAN></SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">/</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">b</SPAN></SUB></TD>
<TD vAlign=top width=60>
<P align=center>疲劳极限<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-1</SPAN></SUB>/MPa</P></TD>
<TD vAlign=top width=60>
<P align=center><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">1K</SPAN></SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">/</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">b</SPAN></SUB></P></TD>
<TD vAlign=top width=84>
<P align=center>缺口敏感系数<SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">1</SPAN></SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">/</SPAN><SPAN style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">σ</SPAN><SUB><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">-</SPAN><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">1K</SPAN></SUB></P></TD></TR>
<TR>
<TD vAlign=top width=96>
<P align=center>铁素体</P></TD>
<TD vAlign=top width=84>
<P align=center>一般</P></TD>
<TD vAlign=top width=77>
<P align=center>441~539</P>
<P align=center>490</P></TD>
<TD vAlign=top width=76>
<P align=center>192～245</P>
<P align=center>210</P></TD>
<TD vAlign=top width=74>
<P align=center>0.43～0.52</P>
<P align=center>0.43</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P>
<P align=center>145</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P>
<P align=center>0.30</P></TD>
<TD vAlign=top width=84>
<P align=center>&nbsp;</P>
<P align=center>1.4</P></TD>
<TD vAlign=top width=108>
<P align=center>42.8～81.3</P></TD></TR>
<TR>
<TD vAlign=top width=180 colSpan=2>
<P align=center>铁素体+珠光体</P></TD>
<TD vAlign=top width=77>
<P align=center>621</P></TD>
<TD vAlign=top width=76>
<P align=center>276</P></TD>
<TD vAlign=top width=74>
<P align=center>0.44</P></TD>
<TD vAlign=top width=60>
<P align=center>166</P></TD>
<TD vAlign=top width=60>
<P align=center>0.27</P></TD>
<TD vAlign=top width=84>
<P align=center>1.7</P></TD>
<TD vAlign=top width=108>
<P align=center>&nbsp;</P></TD></TR>
<TR>
<TD vAlign=top width=96>
<P align=center>珠光体</P></TD>
<TD vAlign=top width=84>
<P align=center>≈100％</P>
<P align=center>≈95％</P>
<P align=center>≈85％</P></TD>
<TD vAlign=top width=77>
<P align=center>728</P>
<P align=center>781</P>
<P align=center>843</P></TD>
<TD vAlign=top width=76>
<P align=center>240</P>
<P align=center>250</P>
<P align=center>270</P></TD>
<TD vAlign=top width=74>
<P align=center>0.33</P>
<P align=center>0.32</P>
<P align=center>0.32</P></TD>
<TD vAlign=top width=60>
<P align=center>172</P>
<P align=center>201</P>
<P align=center>221</P></TD>
<TD vAlign=top width=60>
<P align=center>0.25</P>
<P align=center>0.25</P>
<P align=center>0.26</P></TD>
<TD vAlign=top width=84>
<P align=center>1.4</P>
<P align=center>1.24</P>
<P align=center>1.22</P></TD>
<TD vAlign=top width=108>
<P align=center>31.0～51.7</P></TD></TR>
<TR>
<TD vAlign=top width=180 colSpan=2>
<P align=center>回火马氏体</P></TD>
<TD vAlign=top width=77>
<P align=center>931</P></TD>
<TD vAlign=top width=76>
<P align=center>338</P></TD>
<TD vAlign=top width=74>
<P align=center>0.36</P></TD>
<TD vAlign=top width=60>
<P align=center>207</P></TD>
<TD vAlign=top width=60>
<P align=center>0.22</P></TD>
<TD vAlign=top width=84>
<P align=center>1.6</P></TD>
<TD vAlign=top width=108>
<P align=center>22.7～34.2</P></TD></TR>
<TR>
<TD vAlign=top width=180 colSpan=2>
<P align=center>奥氏体+针状铁素体</P></TD>
<TD vAlign=top width=77>
<P align=center>879~996</P></TD>
<TD vAlign=top width=76>
<P align=center>316～357</P></TD>
<TD vAlign=top width=74>
<P align=center>0.36</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=84>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=108>
<P align=center>83.9～90.4</P></TD></TR>
<TR>
<TD vAlign=top width=180 colSpan=2>
<P align=center>针状铁素体</P></TD>
<TD vAlign=top width=77>
<P align=center>1177~1471</P></TD>
<TD vAlign=top width=76>
<P align=center>304～343</P></TD>
<TD vAlign=top width=74>
<P align=center>0.23～0.26</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=60>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=84>
<P align=center>&nbsp;</P></TD>
<TD vAlign=top width=108>
<P align=center>53.8～61.4</P></TD></TR></TBODY></TABLE>
               

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