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=== 第 7 章 合金鋼及特殊鋼 === PowerPoint PPT Presentation


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=== 第 7 章 合金鋼及特殊鋼 ===. 7-1 構造用合金鋼 7-2 合金工具鋼 7-3 耐蝕鋼 7-4 其他特殊鋼. 第 7 章 合金鋼及特殊鋼. 合金鋼( Alloy steel ) 係在碳鋼中加入一種或一種以上的金屬或非金屬元素,藉以改變碳鋼的機械性質與物理性質,添加的元素,例如:鎳、鉻、 鉬、鋯、釩、鈷、鋁、錳、鎢、鈦、矽等,加入合金元素之後,期使新的鋼材獲得如下的主要 特性 : 1. 強化鋼的機械性質,例如:強度、硬度、衝擊值、韌性、彈性、硬化能等性能。 2. 延長鋼的使用壽命。 3. 增加鋼的耐蝕及防鏽能力,使鋼的表面保持光亮與美觀。.

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=== 第 7 章 合金鋼及特殊鋼 ===

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7

===7 ===

7-1

7-2

7-3

7-4


7

7

Alloy steel

1.

2.

3.


7

(1)Constructional alloy steel(2)Special alloy steel7-1

7-1

1.

2.

3.

4.

5.

7


7

7


7

7


7

7

1.

2.

3.

4.

5.

6.


7

7

7-37-4


7

7

(1)

(2)

(3)


7

7

(1)

(2)

(3)

(4)


7

7

(1)

(2)

(3)

(4)


7

7

(1)

(2)

(3)

(4)

(5)


7

7

(1)

(2)

(3)20%

(4)

(5)

(6)


7

7

(1)

(2)

(3)

(4)


7

7

(1)12%

(2)

(3)

(4)


7

7

(1)

(2)


7

7

(1)

(2)TiC

(3)600


7

7

(1)

(2)

(3)

(4)

(5)


7

7

(1)

(2)

(1)

(2)

(3)


7

7

7-2 SAE

7-2


7

7


7

7


7

7-1


7

7-1


7

7-1


7

7-1

7-1


7

7-1

7-1 75%


7

7-1

1.

2.

3.


7

7-1

Hardenability


7

7-1

7-2 Jominy


7

7-1

Jominy

A B A 0.3% 0.6% 0.7% 3.5% 0.26% 0.35% B0.3% 0.7%0.1%0.14%0.26%A B AB


7

7-1


7

7-1

7-3


7

7-1


7

7-1

7-3 HRC


7

7-1

500~650300~350


7

7-1


7

7-1

25%500Self-hardening propertyAir-hardening roperty

5 30%Irreversible steel7-4


7

7-1


7

7-1

5%

1.

2.

3.

4.


7

7-1

1%800~ 880550~ 600

7-5 7-6


7

7-1


7

7-1


7

7-1

7-3


7

7-1


7

7-1

1.

2.

3.


7

7-1


7

7-1

820~880550~600550

7-7


7

7-1


7

7-4

7-1


7

7-1

400~500


7

7-1


7

7-1

7-5


7

7-1


7

7-1

1.0%200mm

7-6


7

7-1


7

7-1

(1)(2)


7

7-1


7

7-1

0.1~0.3%


7

7-1

Spring steel


7

7-1


7

7-1

(1)(2)

1.

820~880 450~550


7

7-1

2.

Piano wire0.65~0.95%Patenting


7

7-1

2.

400~500Bluing


7

7-1

7-7


7

7-1

0.2%


7

7-1


7

7-1


7

7-2

Tool steel0.6~1.5%

(1)(2)(3)(4)


7

7-2

Carbon tool steel0.6~1.5%0.35%0.5%


7

7-8

7-2


7

7-2

0.6%

760~820 150~200 750~780


7

7-2

Alloy tool steel

(1)(2)(3)(4)


7

7-2

7-9 7-9


7

7-2


7

7-2

(1)

(2)


7

7-2

(3)


7

7-2

7-10


7

7-2


7

7-2

7-11 7-11


7

7-2


7

7-2

Non-shrinkage steel


7

7-2

7-12


7

7-2


7

7-2


7

7-2

500~600


7

7-2

High speed steel18%4%1%18-4-1

Red hardnessSecondary

hardening


7

7-2

1200HRC64~65 550~600HRC66~67


7

7-2

W2CV4C3

7-8


7

7-2

7-8 600


7

7-2

(1)(2)4.5 11%


7

7-2

Casting alloy


7

7-2

Stellite40~45 % 15~33 % 10~18%2~3 % 5 % 1% <1 % 1000


7

7-2

Sintered hard alloy


7

7-2

1.

2.

3.


7

7-2

4.3~10%

5.800~10001400~1500


7

7-2

7-9


7

7-2

7-9


7

7-2

1600


7

7-2

15~35%25~30%50~55% 1200~1350600~700


7

Corrosion resisting steelStainless steel

(1)(2)(1)(2)(3)(4)

7-3


7

7-3

Cr2O3

7-10


7

7-3


7

7-3

7-10 12%12%12%


7

7-3

7-11 10%10%10%

12%


7

7-3


7

7-3

16%0.15%16%0.3%

(1)(2)


7

7-3

Ferritic stainless steel16 18%


7

7-3

Martensitic stainless steel12~14%

950500

7-12


7

7-3


7

7-3

7-12 500

500


7

7-3

18%

0.2%18%8%18-8


7

7-3

7-13


7

7-3


7

7-3

50~900Intergranular corrosion

Intergranular crack7-14(a)(b)


7

7-3


7

7-3

1.TiCNbCTaC

2.1100

3.


7

7-3

Precipitation hardening stainless

17-4PH 17-7PH CuAl7-14


7

7-3

17-4PH

1400N/mm2

17-7PH NiAl31250N/mm2


7

7-3


7

7-4

Heat resisting steel

Cr


7

7-4

(1)(2)

(1)(2)

7-15


7

7-4


7

7-4


7

7-4


7

7-4


7

7-4

600600

7-16


7

7-4


7

7-4


7

7-4

Super alloyABC


7

7-4

Bearing steel


7

7-4

0.9~1.2%0.2~0.6%0.5%0.9~1.2%1.0~1.5%0.03%


7

7-4

7-17


7

7-4


7

7-4

750~ 850150~180HRC62~65


7

7-4

Ferro-magnetic material

Para-magnetic materialDia-magnetic material


7

7-4

1.

2.

3.


7

7-4

A3


7

7-4

25%12~14%18-8

Non-magnetic steel


7

7-4


7

7-4


7

7-4

0.30~0.8mm

1~4%

0.03~0.04%0.1~0.15%7-18


7

7-4


7

7-4

2~3%3.5~5.5%


7

7-4

Magnetic steel

1.

78.5%84%60


7

7-4

2.

Remnant magnetism

Coercive force


7

7-4


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