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不锈钢焊接接头的晶间腐蚀实验 PowerPoint PPT Presentation


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LNPU. 不锈钢焊接接头的晶间腐蚀实验. 蒋应田. 辽宁石油化工大学. 一、观察与分析不锈钢焊接接头的显微组织。 二、了解不锈钢焊接接头产生晶间腐蚀的机理及晶间腐蚀区显微组织特征。. 一、 实验目的. (一) C 法电解浸蚀装置 (二)金相显微镜 (三)吹风机 (四) 腐蚀液稀释为10%的草酸( C 2 H 4 O 4 · 2H 2 O 分析纯)水溶液1000 ml ( 五) 实验材料1 Cr18Ni9Ti( 或1 Cr18Ni9) 钢手弧焊或 TIG 焊试片40×20×1.5~3 mm 6 对 (六) 秒表 (七) 乙醇、丙酮、棉花、各号金相砂纸等。.

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不锈钢焊接接头的晶间腐蚀实验

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4206772

LNPU


4206772


4206772

C

10%C2H4O42H2O1000ml

1Cr18Ni9Ti(1Cr18Ni9)TIG40201.53mm 6


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118-8

18-8


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aTiNbTiNb

b=5%412%

Cr

CrCrCrCr

1)


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4508506001000TiNb18-8

TiNb18-800Cr18Ni11

850900

2)


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TiNb18-8

1200

351.01.5mm

3)


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18-8Ti10501150TiCTiTiC1150TiCCr23C6

1200TiCTiCTi(CN)TiNTiCTiTiTi

CrCTiM23C612%TiCM23C6


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0.06%

GB1223-75


4206772

GB1223-7518-8CTX

1C 1

1mm10%

1


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249010

1T


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65%48

3X

S W

Ad


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TXBEC

CTXTX

18-8C


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1

11

2

4060

20

5

2

4060

20

5

4

4060

30

5

1


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2650~7001~2

3

4

5

610%+1A/cm2,20501.52min

7


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1150500

2

b

c

2


4206772


4206772

1Cr18Ni91Cr18Ni9Ti


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