Table 3: LSP parameters of AHSS-DP350/600.

Sample No:

Terms

Impact times

laser energy (J)

Pulse width (ns)

Spot diameter (mm2)

Spot spacing (mm)

Confining layer

Absorbing layer

laser density (gw/cm2)

1.

NO LSP

NO LSP

NIL

NIL

NIL

NIL

NIL

NIL

NIL

2.

D30J

Twice/double

30

15

4*4

3.4

water

Al foil

12.5

3.

S30J

Single

30

15

4*4

3.4

water

Al foil

12.5

4.

D25J

Twice/double

25

15

4*4

3.4

water

Al foil

10.4

5.

S25J

Single

25

15

4*4

3.4

water

Al foil

10.4

6.

D20J

Twice/double

20

15

4*4

3.4

water

Al foil

6.25

7.

S20J

single

20

15

4*4

3.4

water

Al foil

6.25