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HEATS 发表于 2010-9-12 15:13:12

保护气体成分对18-8Ti钢焊缝化学成分和抗晶间腐蚀性能的影响

<TABLE class=table1 borderColor=#bcceb0 cellSpacing=0 cellPadding=0 width="90%" align=center border=1>
<TBODY>
<TR>
<TH width=200 height=32 rowSpan=2>金&nbsp;属&nbsp;种&nbsp;类</TH>
<TH width=640 colSpan=8 height=16>化&nbsp;&nbsp;&nbsp;&nbsp;学&nbsp;&nbsp;&nbsp;&nbsp;成&nbsp;&nbsp;&nbsp;&nbsp;分&nbsp;&nbsp;&nbsp;&nbsp;(%)</TH>
<TH width=150 height=32 rowSpan=2>65％硝酸沸腾72h</TH></TR>
<TR>
<TH width=80 height=16>C</TH>
<TH width=80 height=16>Mn</TH>
<TH width=80 height=16>Si</TH>
<TH width=80 height=16>Ni</TH>
<TH width=80 height=16>Cr</TH>
<TH width=80 height=16>Nb</TH>
<TH width=80 height=16>Ti</TH>
<TH width=80 height=16>Nb/C</TH></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;焊丝</TD>
<TD align=middle width=80 height=16>0.055</TD>
<TD align=middle width=80 height=16>0.70</TD>
<TD align=middle width=80 height=16>0.62</TD>
<TD align=middle width=80 height=16>8.27</TD>
<TD align=middle width=80 height=16>18.63</TD>
<TD align=middle width=80 height=16>0.83</TD>
<TD align=middle width=80 height=16>0.02</TD>
<TD align=middle width=80 height=16>-</TD>
<TD align=middle width=150 height=16>-</TD></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;母材</TD>
<TD align=middle width=80 height=16>0.11</TD>
<TD align=middle width=80 height=16>0.75</TD>
<TD align=middle width=80 height=16>0.77</TD>
<TD align=middle width=80 height=16>8.12</TD>
<TD align=middle width=80 height=16>18.57</TD>
<TD align=middle width=80 height=16>0.01</TD>
<TD align=middle width=80 height=16>0.57</TD>
<TD align=middle width=80 height=16>-</TD>
<TD align=middle width=150 height=16>-</TD></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;在CO<SUB>2</SUB>中</TD>
<TD align=middle width=80 height=16>0.13</TD>
<TD align=middle width=80 height=16>0.51</TD>
<TD align=middle width=80 height=16>0.46</TD>
<TD align=middle width=80 height=16>8.37</TD>
<TD align=middle width=80 height=16>18.32</TD>
<TD align=middle width=80 height=16>0.63</TD>
<TD align=middle width=80 height=16>0.02</TD>
<TD align=middle width=80 height=16>4.8</TD>
<TD align=middle width=150 height=16>严重腐蚀</TD></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;在Ar80%+CO<SUB>2</SUB>20%中</TD>
<TD align=middle width=80 height=16>0.095</TD>
<TD align=middle width=80 height=16>0.62</TD>
<TD align=middle width=80 height=16>0.56</TD>
<TD align=middle width=80 height=16>8.30</TD>
<TD align=middle width=80 height=16>18.54</TD>
<TD align=middle width=80 height=16>0.79</TD>
<TD align=middle width=80 height=16>0.04</TD>
<TD align=middle width=80 height=16>13.0</TD>
<TD align=middle width=150 height=16>严重腐蚀</TD></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;在Ar99%+O<SUB>2</SUB>1%中</TD>
<TD align=middle width=80 height=16>0.06</TD>
<TD align=middle width=80 height=16>0.68</TD>
<TD align=middle width=80 height=16>0.60</TD>
<TD align=middle width=80 height=16>8.30</TD>
<TD align=middle width=80 height=16>18.62</TD>
<TD align=middle width=80 height=16>0.79</TD>
<TD align=middle width=80 height=16>0.04</TD>
<TD align=middle width=80 height=16>8.25</TD>
<TD align=middle width=150 height=16>轻微腐蚀</TD></TR>
<TR>
<TD align=left width=200 height=16>&nbsp;在Ar80%+CO<SUB>2</SUB>15%+O<SUB>2</SUB>5%中</TD>
<TD align=middle width=80 height=16>0.08</TD>
<TD align=middle width=80 height=16>0.60</TD>
<TD align=middle width=80 height=16>0.57</TD>
<TD align=middle width=80 height=16>8.30</TD>
<TD align=middle width=80 height=16>18.88</TD>
<TD align=middle width=80 height=16>0.83</TD>
<TD align=middle width=80 height=16>-</TD>
<TD align=middle width=80 height=16>10.4</TD>
<TD align=middle width=150 height=16>轻微腐蚀</TD></TR></TBODY></TABLE>
               

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